my alter ego - Page 11 - Developer IT

Pull image of rendered HTML from a specific browser

- by Geo Ego

I am working on an app that will be able to pull an image of rendered HTML from a specific browser. I would like the user to be able to select a specific browser to render an HTML file in, and capture the rendered output in an image file. I am starting with IE8, and I'm not sure where to begin to get the actual rendered output. I can easily open the file in that browser with Process.Start(), but I don't know how to return the rendered output. I have looked a little bit at sinking events, but I don't understand how that works or if that's the right way to go. I would just like some direction, and perhaps some resources to send me on the right path.

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inspect native code

- by alter

is there any way by which I can explore native code in Javascript. I want to see what Function() class has in it.

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Stored procedure to remove FK of a given table

- by Nicole

I need to create a stored procedure that: Accepts a table name as a parameter Find its dependencies (FKs) Removes them Truncate the table I created the following so far based on http://www.mssqltips.com/sqlservertip/1376/disable-enable-drop-and-recreate-sql-server-foreign-keys/ . My problem is that the following script successfully does 1 and 2 and generates queries to alter tables but does not actually execute them. In another word how can execute the resulting "Alter Table ..." queries to actually remove FKs? CREATE PROCEDURE DropDependencies(@TableName VARCHAR(50)) AS BEGIN SELECT 'ALTER TABLE ' + OBJECT_SCHEMA_NAME(parent_object_id) + '.[' + OBJECT_NAME(parent_object_id) + '] DROP CONSTRAINT ' + name FROM sys.foreign_keys WHERE referenced_object_id=object_id(@TableName) END EXEC DropDependencies 'TableName' Any idea is appreciated! Update: I added the cursor to the SP but I still get and error: "Msg 203, Level 16, State 2, Procedure DropRestoreDependencies, Line 75 The name 'ALTER TABLE [dbo].[ChildTable] DROP CONSTRAINT [FK__ChileTable__ParentTable__745C7C5D]' is not a valid identifier." Here is the updated SP: CREATE PROCEDURE DropRestoreDependencies(@schemaName sysname, @tableName sysname) AS BEGIN SET NOCOUNT ON DECLARE @operation VARCHAR(10) SET @operation = 'DROP' --ENABLE, DISABLE, DROP DECLARE @cmd NVARCHAR(1000) DECLARE @FK_NAME sysname, @FK_OBJECTID INT, @FK_DISABLED INT, @FK_NOT_FOR_REPLICATION INT, @DELETE_RULE smallint, @UPDATE_RULE smallint, @FKTABLE_NAME sysname, @FKTABLE_OWNER sysname, @PKTABLE_NAME sysname, @PKTABLE_OWNER sysname, @FKCOLUMN_NAME sysname, @PKCOLUMN_NAME sysname, @CONSTRAINT_COLID INT DECLARE cursor_fkeys CURSOR FOR SELECT Fk.name, Fk.OBJECT_ID, Fk.is_disabled, Fk.is_not_for_replication, Fk.delete_referential_action, Fk.update_referential_action, OBJECT_NAME(Fk.parent_object_id) AS Fk_table_name, schema_name(Fk.schema_id) AS Fk_table_schema, TbR.name AS Pk_table_name, schema_name(TbR.schema_id) Pk_table_schema FROM sys.foreign_keys Fk LEFT OUTER JOIN sys.tables TbR ON TbR.OBJECT_ID = Fk.referenced_object_id --inner join WHERE TbR.name = @tableName AND schema_name(TbR.schema_id) = @schemaName OPEN cursor_fkeys FETCH NEXT FROM cursor_fkeys INTO @FK_NAME,@FK_OBJECTID, @FK_DISABLED, @FK_NOT_FOR_REPLICATION, @DELETE_RULE, @UPDATE_RULE, @FKTABLE_NAME, @FKTABLE_OWNER, @PKTABLE_NAME, @PKTABLE_OWNER WHILE @@FETCH_STATUS = 0 BEGIN -- create statement for dropping FK and also for recreating FK IF @operation = 'DROP' BEGIN -- drop statement SET @cmd = 'ALTER TABLE [' + @FKTABLE_OWNER + '].[' + @FKTABLE_NAME + '] DROP CONSTRAINT [' + @FK_NAME + ']' EXEC @cmd -- create process DECLARE @FKCOLUMNS VARCHAR(1000), @PKCOLUMNS VARCHAR(1000), @COUNTER INT -- create cursor to get FK columns DECLARE cursor_fkeyCols CURSOR FOR SELECT COL_NAME(Fk.parent_object_id, Fk_Cl.parent_column_id) AS Fk_col_name, COL_NAME(Fk.referenced_object_id, Fk_Cl.referenced_column_id) AS Pk_col_name FROM sys.foreign_keys Fk LEFT OUTER JOIN sys.tables TbR ON TbR.OBJECT_ID = Fk.referenced_object_id INNER JOIN sys.foreign_key_columns Fk_Cl ON Fk_Cl.constraint_object_id = Fk.OBJECT_ID WHERE TbR.name = @tableName AND schema_name(TbR.schema_id) = @schemaName AND Fk_Cl.constraint_object_id = @FK_OBJECTID -- added 6/12/2008 ORDER BY Fk_Cl.constraint_column_id OPEN cursor_fkeyCols FETCH NEXT FROM cursor_fkeyCols INTO @FKCOLUMN_NAME,@PKCOLUMN_NAME SET @COUNTER = 1 SET @FKCOLUMNS = '' SET @PKCOLUMNS = '' WHILE @@FETCH_STATUS = 0 BEGIN IF @COUNTER > 1 BEGIN SET @FKCOLUMNS = @FKCOLUMNS + ',' SET @PKCOLUMNS = @PKCOLUMNS + ',' END SET @FKCOLUMNS = @FKCOLUMNS + '[' + @FKCOLUMN_NAME + ']' SET @PKCOLUMNS = @PKCOLUMNS + '[' + @PKCOLUMN_NAME + ']' SET @COUNTER = @COUNTER + 1 FETCH NEXT FROM cursor_fkeyCols INTO @FKCOLUMN_NAME,@PKCOLUMN_NAME END CLOSE cursor_fkeyCols DEALLOCATE cursor_fkeyCols END FETCH NEXT FROM cursor_fkeys INTO @FK_NAME,@FK_OBJECTID, @FK_DISABLED, @FK_NOT_FOR_REPLICATION, @DELETE_RULE, @UPDATE_RULE, @FKTABLE_NAME, @FKTABLE_OWNER, @PKTABLE_NAME, @PKTABLE_OWNER END CLOSE cursor_fkeys DEALLOCATE cursor_fkeys END For running use: EXEC DropRestoreDependencies dbo, ParentTable

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MySQL forgot about automatically creating an index for a foreign key?

- by bobo

After running the following SQL statements, you will see that, MySQL has automatically created the non-unique index question_tag_tag_id_tag_id on the tag_id column for me after the first ALTER TABLE statement has run. But after the second ALTER TABLE statement has run, I think MySQL should also automatically create another non-unique index question_tag_question_id_question_id on the question_id column for me. But as you can see from the SHOW INDEXES statement output, it's not there. Why does MySQL forget about the second ALTER TABLE statement? By the way, since I have already created a unique index question_id_tag_id_idx used by both question_id and tag_id columns. Is creating a separate index for each of them redundant? mysql> DROP DATABASE mydatabase; Query OK, 1 row affected (0.00 sec) mysql> CREATE DATABASE mydatabase; Query OK, 1 row affected (0.00 sec) mysql> USE mydatabase; Database changed mysql> CREATE TABLE question (id BIGINT AUTO_INCREMENT, html TEXT, PRIMARY KEY(id)) ENGINE = INNODB; Query OK, 0 rows affected (0.05 sec) mysql> CREATE TABLE tag (id BIGINT AUTO_INCREMENT, name VARCHAR(10) NOT NULL, UNIQUE INDEX name_idx (name), PRIMARY KEY(id)) ENGINE = INNODB; Query OK, 0 rows affected (0.05 sec) mysql> CREATE TABLE question_tag (question_id BIGINT, tag_id BIGINT, UNIQUE INDEX question_id_tag_id_idx (question_id, tag_id), PRIMARY KEY(question_id, tag_id)) ENGINE = INNODB; Query OK, 0 rows affected (0.00 sec) mysql> ALTER TABLE question_tag ADD CONSTRAINT question_tag_tag_id_tag_id FOREIGN KEY (tag_id) REFERENCES tag(id); Query OK, 0 rows affected (0.10 sec) Records: 0 Duplicates: 0 Warnings: 0 mysql> ALTER TABLE question_tag ADD CONSTRAINT question_tag_question_id_question_id FOREIGN KEY (question_id) REFERENCES question(id); Query OK, 0 rows affected (0.13 sec) Records: 0 Duplicates: 0 Warnings: 0 mysql> SHOW INDEXES FROM question_tag; +--------------+------------+----------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+ | Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | +--------------+------------+----------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+ | question_tag | 0 | PRIMARY | 1 | question_id | A | 0 | NULL | NULL | | BTREE | | | question_tag | 0 | PRIMARY | 2 | tag_id | A | 0 | NULL | NULL | | BTREE | | | question_tag | 0 | question_id_tag_id_idx | 1 | question_id | A | 0 | NULL | NULL | | BTREE | | | question_tag | 0 | question_id_tag_id_idx | 2 | tag_id | A | 0 | NULL | NULL | | BTREE | | | question_tag | 1 | question_tag_tag_id_tag_id | 1 | tag_id | A | 0 | NULL | NULL | | BTREE | | +--------------+------------+----------------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+ 5 rows in set (0.01 sec) mysql>

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ASP Classic Named Parameter in Paramaterized Query: Must declare the scalar variable

- by My Alter Ego

I'm trying to write a parameterized query in ASP Classic, and it's starting to feel like i'm beating my head against a wall. I'm getting the following error: Must declare the scalar variable "@something". I would swear that is what the hello line does, but maybe i'm missing something... <% OPTION EXPLICIT %>  <% Response.Buffer=false dim conn,connectionString,cmd,sql,rs,parm connectionString = "Provider=SQLOLEDB.1;Integrated Security=SSPI;Data Source=.\sqlexpress;Initial Catalog=stuff" set conn = server.CreateObject("adodb.connection") conn.Open(connectionString) set cmd = server.CreateObject("adodb.command") set cmd.ActiveConnection = conn cmd.CommandType = adCmdText cmd.CommandText = "select @something" cmd.NamedParameters = true cmd.Prepared = true set parm = cmd.CreateParameter("@something",advarchar,adParamInput,255,"Hello") call cmd.Parameters.append(parm) set rs = cmd.Execute if not rs.eof then Response.Write rs(0) end if %>

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SQL Server 2005 - Find minimum unused value within a range

- by Geo Ego

I have a situation similar to the following question: Insert Data Into SQL Table Where my scenario differs is that I have a non-auto-incrementing primary key field that can have a range between 1000 and 1999. We only have about a hundred values in it thus far, but the maximum value has already been taken (1999), and there are gaps in the numbering sequence. Thus, I need to find a value that is between 1000-1999 and not taken. For instance, if my current values are, for example, 1000, 1001, 1003, and 1999, I would want the query to return 1002.

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reading rss feeds in applescript

- by alter

how do I read RSS feeds in apple script? I want it to pick and speakout latest news

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When should I implement globalization and localization in C#?

- by Geo Ego

I am cleaning up some code in a C# app that I wrote and really trying to focus on best practices and coding style. As such, I am running my assembly through FXCop and trying to research each message it gives me to decide what should and shouldn't be changed. What I am currently focusing on are locale settings. For instance, the two errors that I have currently are that I should be specifying the IFormatProvider parameter for Convert.ToString(int), and setting the Dataset and Datatable locale. This is something that I've never done, and never put much thought into. I've always just left that overload out. The current app that I am working on is an internal app for a small company that will very likely never need to run in another country. As such, it is my opinion that I do not need to set these at all. On the other hand, doing so would not be such a big deal, but it seems like it is unneccessary and could hinder readability to a degree. I understand that Microsoft's contention is to use it if it's there, period. Well, I'm technically supposed to call Dispose() on every object that implements IDisposable, but I don't bother doing that with Datasets and Datatables, so I wonder what the practice is "in the wild."

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proto of a function

- by alter

if I have a class called Person. var Person = function(fname, lname){ this.fname = fname; this.lname = lname; } Person.prototype.mname = "Test"; var p = new Person('Alice','Bob'); Now, p.proto refers to prototype of Person but, when I try to do Person.proto , it points to function(), and Person.constructor points to Function(). can some1 explain what is the difference between function() and Function() and why prototype of a Function() class is a function()

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how does an object knows about its parent in javascript

- by alter

Lets suppose I made a class called Person. var Person = function(fname){this.fname = fname;}; pObj is the object I made from this class. var pObj = new Person('top'); now I add one property to Person class, say lname. Person.prototype.lname = "Thomsom"; now pObj.lname gets me "Thomson". My question is that, when pObj didn't find the property lname in it, how does it know where to look for.

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previousFailureCount always stays on 0 (zero)

- by itai alter

Hello all, First of all, I'd like to thank the good people who helped me around on this site. Thanks. I'm trying to detect a failed authentication attempt in my app... I'm using the didReceiveAuthenticationChallenge method, and the checking if [challenge previousFailureCount] is equal to 0. The problem is that it's always stays on zero, even if the username and password that I send with the credentials are incorrect. I couldn't find any info about this kind of issue, any help will be much appreciated. Thanks!

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SQL SERVER – Disable Clustered Index and Data Insert

- by pinaldave

Earlier today I received following email. “Dear Pinal, [Removed unrelated content] We looked at your script and found out that in your script of disabling indexes, you have only included non-clustered index during the bulk insert and missed to disabled all the clustered index. Our DBA[name removed] has changed your script a bit and included all the clustered indexes. Since our application is not working. When DBA [name removed] tried to enable clustered indexes again he is facing error incorrect syntax error. We are in deep problem [word replaced] [Removed Identity of organization and few unrelated stuff ]“ I have replied to my client and helped them fixed the problem. What really came to my attention is the concept of disabling clustered index. Let us try to learn a lesson from this experience. In this case, there was no need to disable clustered index at all. I had done necessary work when I was called in to work on tuning project. I had removed unused indexes, created few optimal indexes and wrote a script to disable few selected high cost indexes when bulk insert (and similar) operations are performed. There was another script which rebuild all the indexes as well. The solution worked till they included clustered index in disabling the script. Clustered indexes are in fact original table (or heap) physically ordered (any more things – not scope of this article) according to one or more keys(columns). When clustered index is disabled data rows of the disabled clustered index cannot be accessed. This means there will be no insert possible. When non clustered indexes are disabled all the data related to physically deleted but the definition of the index is kept in the system. Due to the same reason even reorganization of the index is not possible till the clustered index (which was disabled) is rebuild. Now let us come to the second part of the question, regarding receiving the error when clustered index is ‘enabled’. This is very common question I receive on the blog. (The following statement is written keeping the syntax of T-SQL in mind) Clustered indexes can be disabled but can not be enabled, they have to rebuild. It is intuitive to think that something which we have ‘disabled’ can be ‘enabled’ but the syntax for the same is ‘rebuild’. This issue has been explained here: SQL SERVER – How to Enable Index – How to Disable Index – Incorrect syntax near ‘ENABLE’. Let us go over this example where inserting the data is not possible when clustered index is disabled. USE AdventureWorks GO -- Create Table CREATE TABLE [dbo].[TableName]( [ID] [int] NOT NULL, [FirstCol] [varchar](50) NULL, CONSTRAINT [PK_TableName] PRIMARY KEY CLUSTERED ([ID] ASC) ) GO -- Create Nonclustered Index CREATE UNIQUE NONCLUSTERED INDEX [IX_NonClustered_TableName] ON [dbo].[TableName] ([FirstCol] ASC) GO -- Populate Table INSERT INTO [dbo].[TableName] SELECT 1, 'First' UNION ALL SELECT 2, 'Second' UNION ALL SELECT 3, 'Third' GO -- Disable Nonclustered Index ALTER INDEX [IX_NonClustered_TableName] ON [dbo].[TableName] DISABLE GO -- Insert Data should work fine INSERT INTO [dbo].[TableName] SELECT 4, 'Fourth' UNION ALL SELECT 5, 'Fifth' GO -- Disable Clustered Index ALTER INDEX [PK_TableName] ON [dbo].[TableName] DISABLE GO -- Insert Data will fail INSERT INTO [dbo].[TableName] SELECT 6, 'Sixth' UNION ALL SELECT 7, 'Seventh' GO /* Error: Msg 8655, Level 16, State 1, Line 1 The query processor is unable to produce a plan because the index 'PK_TableName' on table or view 'TableName' is disabled. */ -- Reorganizing Index will also throw an error ALTER INDEX [PK_TableName] ON [dbo].[TableName] REORGANIZE GO /* Error: Msg 1973, Level 16, State 1, Line 1 Cannot perform the specified operation on disabled index 'PK_TableName' on table 'dbo.TableName'. */ -- Rebuliding should work fine ALTER INDEX [PK_TableName] ON [dbo].[TableName] REBUILD GO -- Insert Data should work fine INSERT INTO [dbo].[TableName] SELECT 6, 'Sixth' UNION ALL SELECT 7, 'Seventh' GO -- Clean Up DROP TABLE [dbo].[TableName] GO I hope this example is clear enough. There were few additional posts I had written years ago, I am listing them here. SQL SERVER – Enable and Disable Index Non Clustered Indexes Using T-SQL SQL SERVER – Enabling Clustered and Non-Clustered Indexes – Interesting Fact Reference : Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL Constraint and Keys, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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Exadata X3, 11.2.3.2 and Oracle Platinum Services

- by Rene Kundersma

Oracle recently announced an Exadata Hardware Update. The overall architecture will remain the same, however some interesting hardware refreshes are done especially for the storage server (X3-2L). Each cell will now have 1600GB of flash, this means an X3-2 full rack will have 20.3 TB of total flash ! For all the details I would like to refer to the Oracle Exadata product page: www.oracle.com/exadata Together with the announcement of the X3 generation. A new Exadata release, 11.2.3.2 is made available. New Exadata systems will be shipped with this release and existing installations can be updated to that release. As always there is a storage cell patch and a patch for the compute node, which again needs to be applied using YUM. Instructions and requirements for patching existing Exadata compute nodes to 11.2.3.2 using YUM can be found in the patch README. Depending on the release you have installed on your compute nodes the README will direct you to a particular section in MOS note 1473002.1. MOS 1473002.1 should only be followed with the instructions from the 11.2.3.2 patch README. Like with 11.2.3.1.0 and 11.2.3.1.1 instructions are added to prepare your systems to use YUM for the first time in case you are still on release 11.2.2.4.2 and earlier. You will also find these One Time Setup instructions in MOS note 1473002.1 By default compute nodes that will be updated to 11.2.3.2.0 will have the UEK kernel. Before 11.2.3.2.0 the 'compatible kernel' was used for the compute nodes. For 11.2.3.2.0 customer will have the choice to replace the UEK kernel with the Exadata standard 'compatible kernel' which is also in the ULN 11.2.3.2 channel. Recommended is to use the kernel that is installed by default. One of the other great new things 11.2.3.2 brings is Writeback Flashcache (wbfc). By default wbfc is disabled after the upgrade to 11.2.3.2. Enable wbfc after patching on the storage servers of your test environment and see the improvements this brings for your applications. Writeback FlashCache can be enabled by dropping the existing FlashCache, stopping the cellsrv process and changing the FlashCacheMode attribute of the cell. Of course stopping cellsrv can only be done in a controlled manner. Steps: drop flashcache alter cell shutdown services cellsrv again, cellsrv can only be stopped in a controlled manner alter cell flashCacheMode = WriteBack alter cell startup services cellsrv create flashcache all Going back to WriteThrough FlashCache is also possible, but only after flushing the FlashCache: alter cell flashcache all flush Last item I like to highlight in particular is already from a while ago, but a great thing to emphasis: Oracle Platinum Services. On top of the remote fault monitoring with faster response times Oracle has included update and patch deployment services.These services are delivered by Oracle Advanced Customer Support at no additional costs for qualified Oracle Premier Support customers. References: 11.2.3.2.0 README Exadata YUM Repository Population, One-Time Setup Configuration and YUM upgrades 1473002.1 Oracle Platinum Services

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problem in run oracle server please help

- by rima

I used Oracle 11g, from few days ago I face below error: SQL*Plus: Release 11.2.0.1.0 Production on Thu Apr 7 07:33:19 2011 Copyright (c) 1982, 2010, Oracle. All rights reserved. Enter user-name: pentacms Enter password: ERROR: ORA-01033: ORACLE initialization or shutdown in progress Process ID: 0 Session ID: 0 Serial number: 0 Enter user-name: I try to solve the error, but it raised an other error, I try to open log file but I receive below error(last line) "ERROR at line 1: ORA-00600: internal error code, arguments: [kcratr_nab_less_than_odr], [1], [46], [32689], [32690], [], [], [], [], [], [], [] " please advice me, It's an emergency case. FIXED_TABLE_SEQUENCE ROW_WAIT_OBJ# ROW_WAIT_FILE# ROW_WAIT_BLOCK# ROW_WAIT_ROW# -------------------- ------------- -------------- --------------- ------------- TOP_LEVEL_CALL# LOGON_TIM LAST_CALL_ET PDM FAILOVER_TYPE FAILOVER_M FAI --------------- --------- ------------ --- ------------- ---------- --- RESOURCE_CONSUMER_GROUP PDML_STA PDDL_STA PQ_STATU -------------------------------- -------- -------- -------- CURRENT_QUEUE_DURATION ---------------------- CLIENT_IDENTIFIER BLOCKING_SE ---------------------------------------------------------------- ----------- BLOCKING_INSTANCE BLOCKING_SESSION FINAL_BLOCK FINAL_BLOCKING_INSTANCE ----------------- ---------------- ----------- ----------------------- FINAL_BLOCKING_SESSION SEQ# EVENT# ---------------------- ---------- ---------- EVENT ---------------------------------------------------------------- P1TEXT P1 ---------------------------------------------------------------- ---------- P1RAW ---------------- P2TEXT P2 ---------------------------------------------------------------- ---------- P2RAW ---------------- P3TEXT P3 ---------------------------------------------------------------- ---------- P3RAW WAIT_CLASS_ID WAIT_CLASS# ---------------- ------------- ----------- WAIT_CLASS WAIT_TIME ---------------------------------------------------------------- ---------- SECONDS_IN_WAIT STATE WAIT_TIME_MICRO TIME_REMAINING_MICRO --------------- ------------------- --------------- -------------------- TIME_SINCE_LAST_WAIT_MICRO -------------------------- SERVICE_NAME SQL_TRAC SQL_T ---------------------------------------------------------------- -------- ----- SQL_T SQL_TRACE_ SESSION_EDITION_ID CREATOR_ADDR CREATOR_SERIAL# ----- ---------- ------------------ ---------------- --------------- ECID ---------------------------------------------------------------- SYS$USERS DISABLED FALSE SADDR SID SERIAL# AUDSID PADDR USER# ---------------- ---------- ---------- ---------- ---------------- ---------- USERNAME COMMAND OWNERID TADDR ------------------------------ ---------- ---------- ---------------- LOCKWAIT STATUS SERVER SCHEMA# SCHEMANAME ---------------- -------- --------- ---------- ------------------------------ OSUSER PROCESS ------------------------------ ------------------------ MACHINE PORT ---------------------------------------------------------------- ---------- TERMINAL ---------------- PROGRAM TYPE ---------------------------------------------------------------- ---------- SQL_ADDRESS SQL_HASH_VALUE SQL_ID SQL_CHILD_NUMBER SQL_EXEC_ ---------------- -------------- ------------- ---------------- --------- SQL_EXEC_ID PREV_SQL_ADDR PREV_HASH_VALUE PREV_SQL_ID PREV_CHILD_NUMBER ----------- ---------------- --------------- ------------- ----------------- PREV_EXEC PREV_EXEC_ID PLSQL_ENTRY_OBJECT_ID PLSQL_ENTRY_SUBPROGRAM_ID --------- ------------ --------------------- ------------------------- PLSQL_OBJECT_ID PLSQL_SUBPROGRAM_ID --------------- ------------------- MODULE MODULE_HASH ------------------------------------------------ ----------- ACTION ACTION_HASH -------------------------------- ----------- CLIENT_INFO ---------------------------------------------------------------- FIXED_TABLE_SEQUENCE ROW_WAIT_OBJ# ROW_WAIT_FILE# ROW_WAIT_BLOCK# ROW_WAIT_ROW# -------------------- ------------- -------------- --------------- ------------- TOP_LEVEL_CALL# LOGON_TIM LAST_CALL_ET PDM FAILOVER_TYPE FAILOVER_M FAI --------------- --------- ------------ --- ------------- ---------- --- RESOURCE_CONSUMER_GROUP PDML_STA PDDL_STA PQ_STATU -------------------------------- -------- -------- -------- CURRENT_QUEUE_DURATION ---------------------- CLIENT_IDENTIFIER BLOCKING_SE ---------------------------------------------------------------- ----------- BLOCKING_INSTANCE BLOCKING_SESSION FINAL_BLOCK FINAL_BLOCKING_INSTANCE ----------------- ---------------- ----------- ----------------------- FINAL_BLOCKING_SESSION SEQ# EVENT# ---------------------- ---------- ---------- EVENT ---------------------------------------------------------------- P1TEXT P1 ---------------------------------------------------------------- ---------- P1RAW ---------------- P2TEXT P2 ---------------------------------------------------------------- ---------- P2RAW ---------------- P3TEXT P3 ---------------------------------------------------------------- ---------- P3RAW WAIT_CLASS_ID WAIT_CLASS# ---------------- ------------- ----------- WAIT_CLASS WAIT_TIME ---------------------------------------------------------------- ---------- SECONDS_IN_WAIT STATE WAIT_TIME_MICRO TIME_REMAINING_MICRO --------------- ------------------- --------------- -------------------- TIME_SINCE_LAST_WAIT_MICRO -------------------------- SERVICE_NAME SQL_TRAC SQL_T ---------------------------------------------------------------- -------- ----- SQL_T SQL_TRACE_ SESSION_EDITION_ID CREATOR_ADDR CREATOR_SERIAL# ----- ---------- ------------------ ---------------- --------------- ECID ---------------------------------------------------------------- FALSE FIRST EXEC 0 000007FF5D4D8D70 2 SADDR SID SERIAL# AUDSID PADDR USER# ---------------- ---------- ---------- ---------- ---------------- ---------- USERNAME COMMAND OWNERID TADDR ------------------------------ ---------- ---------- ---------------- LOCKWAIT STATUS SERVER SCHEMA# SCHEMANAME ---------------- -------- --------- ---------- ------------------------------ OSUSER PROCESS ------------------------------ ------------------------ MACHINE PORT ---------------------------------------------------------------- ---------- TERMINAL ---------------- PROGRAM TYPE ---------------------------------------------------------------- ---------- SQL_ADDRESS SQL_HASH_VALUE SQL_ID SQL_CHILD_NUMBER SQL_EXEC_ ---------------- -------------- ------------- ---------------- --------- SQL_EXEC_ID PREV_SQL_ADDR PREV_HASH_VALUE PREV_SQL_ID PREV_CHILD_NUMBER ----------- ---------------- --------------- ------------- ----------------- PREV_EXEC PREV_EXEC_ID PLSQL_ENTRY_OBJECT_ID PLSQL_ENTRY_SUBPROGRAM_ID --------- ------------ --------------------- ------------------------- PLSQL_OBJECT_ID PLSQL_SUBPROGRAM_ID --------------- ------------------- MODULE MODULE_HASH ------------------------------------------------ ----------- ACTION ACTION_HASH -------------------------------- ----------- CLIENT_INFO ---------------------------------------------------------------- FIXED_TABLE_SEQUENCE ROW_WAIT_OBJ# ROW_WAIT_FILE# ROW_WAIT_BLOCK# ROW_WAIT_ROW# -------------------- ------------- -------------- --------------- ------------- TOP_LEVEL_CALL# LOGON_TIM LAST_CALL_ET PDM FAILOVER_TYPE FAILOVER_M FAI --------------- --------- ------------ --- ------------- ---------- --- RESOURCE_CONSUMER_GROUP PDML_STA PDDL_STA PQ_STATU -------------------------------- -------- -------- -------- CURRENT_QUEUE_DURATION ---------------------- CLIENT_IDENTIFIER BLOCKING_SE ---------------------------------------------------------------- ----------- BLOCKING_INSTANCE BLOCKING_SESSION FINAL_BLOCK FINAL_BLOCKING_INSTANCE ----------------- ---------------- ----------- ----------------------- FINAL_BLOCKING_SESSION SEQ# EVENT# ---------------------- ---------- ---------- EVENT ---------------------------------------------------------------- P1TEXT P1 ---------------------------------------------------------------- ---------- P1RAW ---------------- P2TEXT P2 ---------------------------------------------------------------- ---------- P2RAW ---------------- P3TEXT P3 ---------------------------------------------------------------- ---------- P3RAW WAIT_CLASS_ID WAIT_CLASS# ---------------- ------------- ----------- WAIT_CLASS WAIT_TIME ---------------------------------------------------------------- ---------- SECONDS_IN_WAIT STATE WAIT_TIME_MICRO TIME_REMAINING_MICRO --------------- ------------------- --------------- -------------------- TIME_SINCE_LAST_WAIT_MICRO -------------------------- SERVICE_NAME SQL_TRAC SQL_T ---------------------------------------------------------------- -------- ----- SQL_T SQL_TRACE_ SESSION_EDITION_ID CREATOR_ADDR CREATOR_SERIAL# ----- ---------- ------------------ ---------------- --------------- ECID ---------------------------------------------------------------- SADDR SID SERIAL# AUDSID PADDR USER# ---------------- ---------- ---------- ---------- ---------------- ---------- USERNAME COMMAND OWNERID TADDR ------------------------------ ---------- ---------- ---------------- LOCKWAIT STATUS SERVER SCHEMA# SCHEMANAME ---------------- -------- --------- ---------- ------------------------------ OSUSER PROCESS ------------------------------ ------------------------ MACHINE PORT ---------------------------------------------------------------- ---------- TERMINAL ---------------- PROGRAM TYPE ---------------------------------------------------------------- ---------- SQL_ADDRESS SQL_HASH_VALUE SQL_ID SQL_CHILD_NUMBER SQL_EXEC_ ---------------- -------------- ------------- ---------------- --------- SQL_EXEC_ID PREV_SQL_ADDR PREV_HASH_VALUE PREV_SQL_ID PREV_CHILD_NUMBER ----------- ---------------- --------------- ------------- ----------------- PREV_EXEC PREV_EXEC_ID PLSQL_ENTRY_OBJECT_ID PLSQL_ENTRY_SUBPROGRAM_ID --------- ------------ --------------------- ------------------------- PLSQL_OBJECT_ID PLSQL_SUBPROGRAM_ID --------------- ------------------- MODULE MODULE_HASH ------------------------------------------------ ----------- ACTION ACTION_HASH -------------------------------- ----------- CLIENT_INFO ---------------------------------------------------------------- FIXED_TABLE_SEQUENCE ROW_WAIT_OBJ# ROW_WAIT_FILE# ROW_WAIT_BLOCK# ROW_WAIT_ROW# -------------------- ------------- -------------- --------------- ------------- TOP_LEVEL_CALL# LOGON_TIM LAST_CALL_ET PDM FAILOVER_TYPE FAILOVER_M FAI --------------- --------- ------------ --- ------------- ---------- --- RESOURCE_CONSUMER_GROUP PDML_STA PDDL_STA PQ_STATU -------------------------------- -------- -------- -------- CURRENT_QUEUE_DURATION ---------------------- CLIENT_IDENTIFIER BLOCKING_SE ---------------------------------------------------------------- ----------- BLOCKING_INSTANCE BLOCKING_SESSION FINAL_BLOCK FINAL_BLOCKING_INSTANCE ----------------- ---------------- ----------- ----------------------- FINAL_BLOCKING_SESSION SEQ# EVENT# ---------------------- ---------- ---------- EVENT ---------------------------------------------------------------- P1TEXT P1 ---------------------------------------------------------------- ---------- P1RAW ---------------- P2TEXT P2 ---------------------------------------------------------------- ---------- P2RAW ---------------- P3TEXT P3 ---------------------------------------------------------------- ---------- P3RAW WAIT_CLASS_ID WAIT_CLASS# ---------------- ------------- ----------- WAIT_CLASS WAIT_TIME ---------------------------------------------------------------- ---------- SECONDS_IN_WAIT STATE WAIT_TIME_MICRO TIME_REMAINING_MICRO --------------- ------------------- --------------- -------------------- TIME_SINCE_LAST_WAIT_MICRO -------------------------- SERVICE_NAME SQL_TRAC SQL_T ---------------------------------------------------------------- -------- ----- SQL_T SQL_TRACE_ SESSION_EDITION_ID CREATOR_ADDR CREATOR_SERIAL# ----- ---------- ------------------ ---------------- --------------- ECID ---------------------------------------------------------------- 16 rows selected. SQL> desc dba_user; ERROR: ORA-04043: object dba_user does not exist SQL> desc dba_users; ERROR: ORA-04043: object dba_users does not exist SQL> desc v$user; ERROR: ORA-04043: object v$user does not exist SQL> desc v$users ERROR: ORA-04043: object v$users does not exist SQL> seleect * from dba_users; SP2-0734: unknown command beginning "seleect * ..." - rest of line ignored. SQL> select * from dba_users; select * from dba_users * ERROR at line 1: ORA-01219: database not open: queries allowed on fixed tables/views only SQL> alter database open; alter database open * ERROR at line 1: ORA-00600: internal error code, arguments: [kcratr_nab_less_than_odr], [1], [46], [32689], [32690], [], [], [], [], [], [], [] SQL> alter database mount; alter database mount * ERROR at line 1: ORA-01100: database already mounted SQL> alter database mount;

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Cascading Deletes in SQL Sever 2008 not working.

- by Vaccano

I have the following table setup. Bag | +-> BagID (Guid) +-> BagNumber (Int) BagCommentRelation | +-> BagID (Int) +-> CommentID (Guid) BagComment | +-> CommentID (Guid) +-> Text (varchar(200)) BagCommentRelation has Foreign Keys to Bag and BagComment. So, I turned on cascading deletes for both those Foreign Keys, but when I delete a bag, it does not delete the Comment row. Do need to break out a trigger for this? Or am I missing something? (I am using SQL Server 2008) Note: Posting requested SQL. This is the defintion of the BagCommentRelation table. (I had the type of the bagID wrong (I thought it was a guid but it is an int).) CREATE TABLE [dbo].[Bag_CommentRelation]( [Id] [int] IDENTITY(1,1) NOT NULL, [BagId] [int] NOT NULL, [Sequence] [int] NOT NULL, [CommentId] [int] NOT NULL, CONSTRAINT [PK_Bag_CommentRelation] PRIMARY KEY CLUSTERED ( [BagId] ASC, [Sequence] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] GO ALTER TABLE [dbo].[Bag_CommentRelation] WITH CHECK ADD CONSTRAINT [FK_Bag_CommentRelation_Bag] FOREIGN KEY([BagId]) REFERENCES [dbo].[Bag] ([Id]) ON DELETE CASCADE GO ALTER TABLE [dbo].[Bag_CommentRelation] CHECK CONSTRAINT [FK_Bag_CommentRelation_Bag] GO ALTER TABLE [dbo].[Bag_CommentRelation] WITH CHECK ADD CONSTRAINT [FK_Bag_CommentRelation_Comment] FOREIGN KEY([CommentId]) REFERENCES [dbo].[Comment] ([CommentId]) ON DELETE CASCADE GO ALTER TABLE [dbo].[Bag_CommentRelation] CHECK CONSTRAINT [FK_Bag_CommentRelation_Comment] GO The row in this table deletes but the row in the comment table does not.

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Improving my first Clojure program

- by StackedCrooked

After a few weekends exploring Clojure I came up with this program. It allows you to move a little rectangle in a window. Here's the code: (import java.awt.Color) (import java.awt.Dimension) (import java.awt.event.KeyListener) (import javax.swing.JFrame) (import javax.swing.JPanel) (def x (ref 0)) (def y (ref 0)) (def panel (proxy [JPanel KeyListener] [] (getPreferredSize [] (Dimension. 100 100)) (keyPressed [e] (let [keyCode (.getKeyCode e)] (if (== 37 keyCode) (dosync (alter x dec)) (if (== 38 keyCode) (dosync (alter y dec)) (if (== 39 keyCode) (dosync (alter x inc)) (if (== 40 keyCode) (dosync (alter y inc)) (println keyCode))))))) (keyReleased [e]) (keyTyped [e]))) (doto panel (.setFocusable true) (.addKeyListener panel)) (def frame (JFrame. "Test")) (doto frame (.add panel) (.pack) (.setDefaultCloseOperation JFrame/EXIT_ON_CLOSE) (.setVisible true)) (defn drawRectangle [p] (doto (.getGraphics p) (.setColor (java.awt.Color/WHITE)) (.fillRect 0 0 100 100) (.setColor (java.awt.Color/BLUE)) (.fillRect (* 10 (deref x)) (* 10 (deref y)) 10 10))) (loop [] (drawRectangle panel) (Thread/sleep 10) (recur)) Despite being an experienced C++ programmer I found it very challenging to write even a simple application in a language that uses a radically different style than what I'm used to. On top of that, this code probably sucks. I suspect the globalness of the various values is a bad thing. It's also not clear to me if it's appropriate to use references here for the x and y values. Any hints for improving this code are welcome.

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BASH echo write mysql input

- by jmituzas

Have a bash menu where variables write to file for mysql input. heres what I have: echo "CREATE DATABASE '$mysqldbn'; #GRANT ALL PRIVILEGES ON *.* TO '$mysqlu'@'$myhost' IDENTIFIED BY '$mysqlup' WITH GRANT OPTION; GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, INDEX, ALTER, CREATE TEMPORARY TABLES, LOCK TABLES ON '$mysqldbn'.* TO '$mysqlu'@'$myhost' IDENTIFIED BY '$mysqlup'; GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, INDEX, ALTER, CREATE TEMPORARY TABLES, LOCK TABLES ON '$mysqldbn'.* TO '$mysqlu'@'$myip' IDENTIFIED BY '$mysqlup'; GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, INDEX, ALTER, CREATE TEMPORARY TABLES, LOCK TABLES ON '$mysqldbn'.* TO '$mysqlu'@'localhost' IDENTIFIED BY '$mysqlup'; GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, INDEX, ALTER, CREATE TEMPORARY TABLES< LOCK TABLES on '$mysqldbn'.* TO '$mysqlu'@'$rip' IDENTIFIED BY '$mysqlup';" > nmysql.db mysql -u root -p$mypass < nmysql.db problem is to get variables to show I had to put them in single quotes, the single quotes show up as I want for instances like '$mysqlu'@'localhost'. But how can I remove the quotes and still get to use the variable in the instance like, CREATE DATABASE '$mysqldbn' ? Double quotes wont work either, I am at a loss. Thanks in advance, Joe

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Know more about shared pool subpool

- by Liu Maclean(???)

????T.askmaclean.com???Shared Pool?SubPool?????,????????_kghdsidx_count ? subpool ??subpool????( ???duration)???: SQL> select * from v$version; BANNER ---------------------------------------------------------------- Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi PL/SQL Release 10.2.0.5.0 - Production CORE 10.2.0.5.0 Production TNS for Linux: Version 10.2.0.5.0 - Production NLSRTL Version 10.2.0.5.0 - Production SQL> set linesize 200 pagesize 1400 SQL> show parameter kgh NAME TYPE VALUE ------------------------------------ -------------------------------- ------------------------------ _kghdsidx_count integer 7 SQL> oradebug setmypid; Statement processed. SQL> oradebug dump heapdump 536870914; Statement processed. SQL> oradebug tracefile_name /s01/admin/G10R25/udump/g10r25_ora_11783.trc [oracle@vrh8 dbs]$ grep "sga heap" /s01/admin/G10R25/udump/g10r25_ora_11783.trc HEAP DUMP heap name="sga heap" desc=0x60000058 HEAP DUMP heap name="sga heap(1,0)" desc=0x60036110 FIVE LARGEST SUB HEAPS for heap name="sga heap(1,0)" desc=0x60036110 HEAP DUMP heap name="sga heap(2,0)" desc=0x6003f938 FIVE LARGEST SUB HEAPS for heap name="sga heap(2,0)" desc=0x6003f938 HEAP DUMP heap name="sga heap(3,0)" desc=0x60049160 FIVE LARGEST SUB HEAPS for heap name="sga heap(3,0)" desc=0x60049160 HEAP DUMP heap name="sga heap(4,0)" desc=0x60052988 FIVE LARGEST SUB HEAPS for heap name="sga heap(4,0)" desc=0x60052988 HEAP DUMP heap name="sga heap(5,0)" desc=0x6005c1b0 FIVE LARGEST SUB HEAPS for heap name="sga heap(5,0)" desc=0x6005c1b0 HEAP DUMP heap name="sga heap(6,0)" desc=0x600659d8 FIVE LARGEST SUB HEAPS for heap name="sga heap(6,0)" desc=0x600659d8 HEAP DUMP heap name="sga heap(7,0)" desc=0x6006f200 FIVE LARGEST SUB HEAPS for heap name="sga heap(7,0)" desc=0x6006f200 SQL> alter system set "_kghdsidx_count"=6 scope=spfile; System altered. SQL> startup force; ORACLE instance started. Total System Global Area 859832320 bytes Fixed Size 2100104 bytes Variable Size 746587256 bytes Database Buffers 104857600 bytes Redo Buffers 6287360 bytes Database mounted. Database opened. SQL> SQL> oradebug setmypid; Statement processed. SQL> oradebug dump heapdump 536870914; Statement processed. SQL> oradebug tracefile_name /s01/admin/G10R25/udump/g10r25_ora_11908.trc [oracle@vrh8 dbs]$ grep "sga heap" /s01/admin/G10R25/udump/g10r25_ora_11908.trc HEAP DUMP heap name="sga heap" desc=0x60000058 HEAP DUMP heap name="sga heap(1,0)" desc=0x600360f0 FIVE LARGEST SUB HEAPS for heap name="sga heap(1,0)" desc=0x600360f0 HEAP DUMP heap name="sga heap(2,0)" desc=0x6003f918 FIVE LARGEST SUB HEAPS for heap name="sga heap(2,0)" desc=0x6003f918 HEAP DUMP heap name="sga heap(3,0)" desc=0x60049140 FIVE LARGEST SUB HEAPS for heap name="sga heap(3,0)" desc=0x60049140 HEAP DUMP heap name="sga heap(4,0)" desc=0x60052968 FIVE LARGEST SUB HEAPS for heap name="sga heap(4,0)" desc=0x60052968 HEAP DUMP heap name="sga heap(5,0)" desc=0x6005c190 FIVE LARGEST SUB HEAPS for heap name="sga heap(5,0)" desc=0x6005c190 HEAP DUMP heap name="sga heap(6,0)" desc=0x600659b8 FIVE LARGEST SUB HEAPS for heap name="sga heap(6,0)" desc=0x600659b8 SQL> SQL> alter system set "_kghdsidx_count"=2 scope=spfile; System altered. SQL> SQL> startup force; ORACLE instance started. Total System Global Area 851443712 bytes Fixed Size 2100040 bytes Variable Size 738198712 bytes Database Buffers 104857600 bytes Redo Buffers 6287360 bytes Database mounted. Database opened. SQL> oradebug setmypid; Statement processed. SQL> oradebug dump heapdump 2; Statement processed. SQL> oradebug tracefile_name /s01/admin/G10R25/udump/g10r25_ora_12003.trc [oracle@vrh8 ~]$ grep "sga heap" /s01/admin/G10R25/udump/g10r25_ora_12003.trc HEAP DUMP heap name="sga heap" desc=0x60000058 HEAP DUMP heap name="sga heap(1,0)" desc=0x600360b0 HEAP DUMP heap name="sga heap(2,0)" desc=0x6003f8d SQL> alter system set cpu_count=16 scope=spfile; System altered. SQL> startup force; ORACLE instance started. Total System Global Area 851443712 bytes Fixed Size 2100040 bytes Variable Size 738198712 bytes Database Buffers 104857600 bytes Redo Buffers 6287360 bytes Database mounted. Database opened. SQL> oradebug setmypid; Statement processed. SQL> oradebug dump heapdump 2; Statement processed. SQL> oradebug tracefile_name /s01/admin/G10R25/udump/g10r25_ora_12065.trc [oracle@vrh8 ~]$ grep "sga heap" /s01/admin/G10R25/udump/g10r25_ora_12065.trc HEAP DUMP heap name="sga heap" desc=0x60000058 HEAP DUMP heap name="sga heap(1,0)" desc=0x600360b0 HEAP DUMP heap name="sga heap(2,0)" desc=0x6003f8d8 SQL> show parameter sga_target NAME TYPE VALUE ------------------------------------ -------------------------------- ------------------------------ sga_target big integer 0 SQL> alter system set sga_target=1000M scope=spfile; System altered. SQL> startup force; ORACLE instance started. Total System Global Area 1048576000 bytes Fixed Size 2101544 bytes Variable Size 738201304 bytes Database Buffers 301989888 bytes Redo Buffers 6283264 bytes Database mounted. Database opened. SQL> alter system set sga_target=1000M scope=spfile; System altered. SQL> startup force; ORACLE instance started. Total System Global Area 1048576000 bytes Fixed Size 2101544 bytes Variable Size 738201304 bytes Database Buffers 301989888 bytes Redo Buffers 6283264 bytes Database mounted. Database opened. SQL> SQL> SQL> oradebug setmypid; Statement processed. SQL> oradebug dump heapdump 2; Statement processed. SQL> oradebug tracefile_name /s01/admin/G10R25/udump/g10r25_ora_12148.trc SQL> SQL> Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options [oracle@vrh8 dbs]$ grep "sga heap" /s01/admin/G10R25/udump/g10r25_ora_12148.trc HEAP DUMP heap name="sga heap" desc=0x60000058 HEAP DUMP heap name="sga heap(1,0)" desc=0x60036690 HEAP DUMP heap name="sga heap(1,1)" desc=0x60037ee8 HEAP DUMP heap name="sga heap(1,2)" desc=0x60039740 HEAP DUMP heap name="sga heap(1,3)" desc=0x6003af98 HEAP DUMP heap name="sga heap(2,0)" desc=0x6003feb8 HEAP DUMP heap name="sga heap(2,1)" desc=0x60041710 HEAP DUMP heap name="sga heap(2,2)" desc=0x60042f68 _enable_shared_pool_durations:?????????10g????shared pool duration??,?????sga_target?0?????false; ???10.2.0.5??cursor_space_for_time???true??????false,???10.2.0.5??cursor_space_for_time????? SQL> alter system set "_enable_shared_pool_durations"=false scope=spfile; System altered. SQL> SQL> startup force; ORACLE instance started. Total System Global Area 1048576000 bytes Fixed Size 2101544 bytes Variable Size 738201304 bytes Database Buffers 301989888 bytes Redo Buffers 6283264 bytes Database mounted. Database opened. SQL> oradebug setmypid; Statement processed. SQL> oradebug dump heapdump 2; Statement processed. SQL> oradebug tracefile_name /s01/admin/G10R25/udump/g10r25_ora_12233.trc SQL> SQL> Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options\ [oracle@vrh8 dbs]$ grep "sga heap" /s01/admin/G10R25/udump/g10r25_ora_12233.trc HEAP DUMP heap name="sga heap" desc=0x60000058 HEAP DUMP heap name="sga heap(1,0)" desc=0x60036690 HEAP DUMP heap name="sga heap(2,0)" desc=0x6003feb8 ??:1._kghdsidx_count ??? shared pool subpool???, _kghdsidx_count???????7 ??? 7? shared pool subpool 2.??????? subpool???4? sub partition ?: sga heap(1,0) sga heap(1,1) sga heap(1,2) sga heap(1,3) ????? cpu??? ?????_kghdsidx_count, ???? ?10g ?AUTO SGA ??? shared pool duration???, duration ??4?: Session duration Instance duration (never freed) Execution duration (freed fastest) Free memory ??? shared pool duration???? ?10gR1?Shared Pool?shrink??????????,?????????????Buffer Cache???????????granule,????Buffer Cache?granule????granule header?Metadata(???buffer header??RAC??Lock Elements)????,?????????????????????shared pool????????duration(?????)?chunk??????granule?,????????????granule??10gR2????Buffer Cache Granule????????granule header?buffer?Metadata(buffer header?LE)????,??shared pool???duration?chunk????????granule,??????buffer cache?shared pool??????????????10gr2?streams pool?????????(???????streams pool duration????) reference : http://www.oracledatabase12g.com/archives/understanding-automatic-sga-memory-management.html

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12c - Silly little trick with invisibility...

- by noreply(at)blogger.com (Thomas Kyte)

This is interesting, if you hide and then unhide a column - it will end up at the "end" of the table. Consider:ops$tkyte%ORA12CR1> create table t ( a int, b int, c int );Table created.ops$tkyte%ORA12CR1>ops$tkyte%ORA12CR1> desc t; Name Null? Type ----------------------------------------------------- -------- ------------------------------------ A NUMBER(38) B NUMBER(38) C NUMBER(38)ops$tkyte%ORA12CR1> alter table t modify (a invisible);Table altered.ops$tkyte%ORA12CR1> alter table t modify (a visible);Table altered.ops$tkyte%ORA12CR1> desc t; Name Null? Type ----------------------------------------------------- -------- ------------------------------------ B NUMBER(38) C NUMBER(38) A NUMBER(38)Now, that means you can add a column or shuffle them around. What if we had just added A to the table and really really wanted A to be first. My first approach would be "that is what editioning views are great at". If I couldn't use an editioning view for whatever reason - we could shuffle the columns:ops$tkyte%ORA12CR1> alter table t modify (b invisible);Table altered.ops$tkyte%ORA12CR1> alter table t modify (c invisible);Table altered.ops$tkyte%ORA12CR1> alter table t modify (b visible);Table altered.ops$tkyte%ORA12CR1> alter table t modify (c visible);Table altered.ops$tkyte%ORA12CR1>ops$tkyte%ORA12CR1> desc t; Name Null? Type ----------------------------------------------------- -------- ------------------------------------ A NUMBER(38) B NUMBER(38) C NUMBER(38)Note: that could cause some serious invalidations in your database - so make sure you are a) aware of that b) willing to pay that penalty and c) really really really want A to be first in the table!

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Foreign key problem linking tables in phpMyAdmin

- by alan

I'm using phpMyAdmin (PHP & MySQL) and I'm having a lot of trouble linking the tables using foreign keys. I'm getting negative values for the field countyId (which is the foriegn key). However, it is linking to my other table and cascading fine. When I go to add data there will be a drop selection for the CountyId and the values will look something like this: " -1 1- " Here is my alter statement: ALTER TABLE Baronies ADD FOREIGN KEY (CountyId) REFERENCES Counties (CountyId) ON DELETE CASCADE

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Foreign key problem linking tables in phpMyAdmin

- by alan

I'm using phpMyAdmin (PHP & MySQL) and I'm having a lot of trouble linking the tables using foreign keys. I'm getting negative values for the field countyId (which is the foriegn key). However, it is linking to my other table and cascading fine. When I go to add data there will be a drop selection for the CountyId and the values will look something like this: " -1 1- " Here is my alter statement: ALTER TABLE Baronies ADD FOREIGN KEY (CountyId) REFERENCES Counties (CountyId) ON DELETE CASCADE

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SQL Service Broker enabled causes 100% CPU

- by user40373

I have new set of code for a website that is using SqlCacheDependencies based on sql commands. I have enabled SQL Service Broker and some triggers on update/insert/delete and it is causing 100% CPU. Any ideas if I am doing something wrong or suggestions to improve? Here are the SQLchanges I ran: alter database DATABASE_NAME set enable_broker WITH ROLLBACK IMMEDIATE grant subscribe query notifications to CONNECTION_USER_NAME grant send on service::sqlquerynotificationservice to CONNECTION_USER_NAME ALTER AUTHORIZATION ON DATABASE::DATABASE_NAME TO CONNECTION_USER_NAME;

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Phpmyadmin mysql foreign key problem

- by alan

Hey guys i'm using phpmyadmin (php & mysql) and i'm having alot of trouble linking the tables using foreign keys. I'm getting negative values for the field countyId (which is the foriegn key). However it is linking to my other table fine and it's cascading fine. So when I go to add data there will be a drop box for the CountyId and the values will look something like this, " -1 1- " Here is my alter statement, ALTER TABLE Baronies ADD FOREIGN KEY (CountyId) REFERENCES Counties (CountyId) ON DELETE CASCADE

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Syntax for DBCC CHECKTABLE on all indexes?

- by GuinnessFan

Just want to check the syntax to make sure this is for one table and all indexes (default?). --must be single user ALTER DATABASE database_name SET SINGLE_USER; DBCC CHECKTABLE ( "table_name" , REPAIR_ALLOW_DATA_LOSS ) WITH ALL_ERRORMSGS; -- TURN BACK MULTI USER ALTER DATABASE database_name SET MULTI_USER; Also, should I be in the database containing the table to repair or should I be in master?

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ISQL Perform instruction: after editadd editupdate of table vs. after add update of table

- by Frank Computer

INFORMIX-SQL 7.3 Perform Screens: According to documentation, in an "after editadd editupdate of table" control block, its instructions are executed before the row is added or updated to the table, whereas in an "after add update of table" control block, its instructions are executed after the row has been added or updated to the table, supposedly meaning that any instructions which would alter values of field-tags linked to table.columns would not be committed to the table, but field-tags linked to displayonly fields will change?.. However, when using "after add update of table" I placed instructions which alter values for field-tags linked to table.columns and their displayed and committed values also changed!.. I would have thought that an "after add update of table" would only alter displayonly fields.

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