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  • TSQL: Global Script Variable?

    - by Abs
    Hello all, I am making use of variables in my TSQL queries. As my script has grown, I have separated each part by GO, now the problem is I need access to variables at the top of my script. How can I still access these variables? Hopefully, this is something simple and straightforward. Thanks all

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  • PostgreSQL, Foreign Keys, Insert speed & Django

    - by Miles
    A few days ago, I ran into an unexpected performance problem with a pretty standard Django setup. For an upcoming feature, we have to regenerate a table hourly, containing about 100k rows of data, 9M on the disk, 10M indexes according to pgAdmin. The problem is that inserting them by whatever method literally takes ages, up to 3 minutes of 100% disk busy time. That's not something you want on a production site. It doesn't matter if the inserts were in a transaction, issued via plain insert, multi-row insert, COPY FROM or even INSERT INTO t1 SELECT * FROM t2. After noticing this isn't Django's fault, I followed a trial and error route, and hey, the problem disappeared after dropping all foreign keys! Instead of 3 minutes, the INSERT INTO SELECT FROM took less than a second to execute, which isn't too surprising for a table <= 20M on the disk. What is weird is that PostgreSQL manages to slow down inserts by 180x just by using 3 foreign keys. Oh, disk activity was pure writing, as everything is cached in RAM; only writes go to the disks. It looks like PostgreSQL is working very hard to touch every row in the referred tables, as 3MB/sec * 180s is way more data than the 20MB this new table takes on disk. No WAL for the 180s case, I was testing in psql directly, in Django, add ~50% overhead for WAL logging. Tried @commit_on_success, same slowness, I had even implemented multi row insert and COPY FROM with psycopg2. That's another weird thing, how can 10M worth of inserts generate 10x 16M log segments? Table layout: id serial primary, a bunch of int32, 3 foreign keys to small table, 198 rows, 16k on disk large table, 1.2M rows, 59 data + 89 index MB on disk large table, 2.2M rows, 198 + 210MB So, am I doomed to either drop the foreign keys manually or use the table in a very un-Django way by defining saving bla_id x3 and skip using models.ForeignKey? I'd love to hear about some magical antidote / pg setting to fix this.

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  • Trying to Understand PLSQL Function

    - by Rachel
    I am new to PLSQL and I have this huge plsql function which am trying to understand and am having hard time understanding the flow and so I would really appreciate if anyone can run me through the big pieces so that I can understand the flow. Guidance would be highly appreciated. FUNCTION monthly_analysis( REGION_ID_P VARCHAR2, COUNTRY_ID_P VARCHAR2 , SUB_REGION_ID_P VARCHAR2 , CUSTOMER_TYPE_ID_P VARCHAR2 , RECEIVED_FROM_DATE_P VARCHAR2 , RECEIVED_TO_DATE_P VARCHAR2, CUSTOMER_ID_P VARCHAR2 , PRIORITY_ID_P VARCHAR2, WORK_GROUP_ID_P VARCHAR2, CITY_ID_P VARCHAR2, USER_ID_P VARCHAR2 ) RETURN AP_ANALYSIS_REPORT_TAB_TYPE pipelined IS with_sql LONG; e_sql LONG; where_sql LONG; group_by_sql LONG; curent_date Date; v_row AP_ANALYSIS_REPORT_ROW_TYPE := AP_ANALYSIS_REPORT_ROW_TYPE( NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ); TYPE rectyp IS REF CURSOR; -- define weak REF CURSOR type rrc_rectyp rectyp; TYPE recordvar IS RECORD( MONTHS VARCHAR2(100), ORDERBY_MONTHS VARCHAR2(100), REQ_RECEIVED NUMBER(9,2), REQ_STILL_OPEN NUMBER(9,2), REQ_AWAIT_ACCEPTANCE NUMBER(9,2), REQ_WITH_ATT NUMBER(9,2), REQ_CLOSED NUMBER(9,2), REQ_CANCELLED NUMBER(9,2) ); res_rec recordvar; BEGIN select sysdate +substr(to_char(systimestamp, 'tzr'),3,1)/24 into curent_date from dual; where_sql := ' AND 1=1 '; IF COUNTRY_ID_P IS NOT NULL THEN where_sql := where_sql ||' AND x.country_id ='|| COUNTRY_ID_P; END IF; IF SUB_REGION_ID_P IS NOT NULL THEN where_sql := where_sql ||' AND x.SUB_REGION_ID ='|| SUB_REGION_ID_P; END IF; IF CUSTOMER_TYPE_ID_P IS NOT NULL THEN where_sql := where_sql ||' AND x.CUSTOMER_TYPE_ID ='|| CUSTOMER_TYPE_ID_P; END IF; IF RECEIVED_FROM_DATE_P IS NOT NULL THEN where_sql := where_sql||' AND convert_time(received_date, ''GMT'', ''GMT'') >= convert_time(trunc(to_date('''||RECEIVED_FROM_DATE_P||''',''dd/mm/yyyy HH24:MI:SS'')), ''Europe/Paris'', ''GMT'')'; END IF; IF RECEIVED_TO_DATE_P IS NOT NULL THEN where_sql := where_sql||' AND convert_time(received_date, ''GMT'', ''GMT'') <= convert_time(trunc(to_date('''||RECEIVED_TO_DATE_P||''',''dd/mm/yyyy HH24:MI:SS'')), ''Europe/Paris'', ''GMT'')'; END IF; IF CUSTOMER_ID_P IS NOT NULL THEN where_sql := where_sql||' AND x.CUSTOMER_ID in(select CUSTOMER_ID from lk_customer where upper(CUSTOMER_NAME) like upper('''||CUSTOMER_ID_P||'%''))'; END IF; IF PRIORITY_ID_P IS NOT NULL THEN where_sql := where_sql ||' AND x.PRIORITY_ID ='|| PRIORITY_ID_P; END IF; IF WORK_GROUP_ID_P IS NOT NULL THEN where_sql := where_sql ||' AND x.WORKGROUP_ID ='|| WORK_GROUP_ID_P; END IF; IF CITY_ID_P IS NOT NULL THEN where_sql := where_sql ||' AND x.CITY_ID = ' || CITY_ID_P; END IF; group_by_sql := ' group by to_char(convert_time(received_date, ''GMT'', ''Europe/Paris''),''mm/YYYY''),to_char(convert_time(received_date, ''GMT'', ''Europe/Paris''),''yyyy/mm'')'; with_sql := 'with b AS (select cep_work_item_no from ap_main where req_accept_date is null and ecep_ap_utils.f_business_days(received_date,'''||curent_date||''')>30), e AS (select cep_work_item_no from ap_main where status_id=1 and req_accept_date is not null and stage_ID != 10 and stage_Id !=4 and ecep_ap_utils.f_business_days(received_date,'''||curent_date||''')>30), --f AS (select cep_work_item_no from ap_main where received_date is not null), m AS (select cep_work_item_no from ap_main where received_date is not null and status_id=1), n AS (select cep_work_item_no from ap_main where status_id=2), o AS (select cep_work_item_no from ap_main where status_id=3)'; --e_sql := ' SELECT MONTHS, REQ_RECEIVED,REQ_STILL_OPEN, REQ_AWAIT_ACCEPTANCE, REQ_WITH_ATT from ('; --e_sql := with_sql; e_sql := with_sql||' select to_char(convert_time(received_date, ''GMT'', ''Europe/Paris''),''mm/YYYY'') MONTHS, to_char(convert_time(received_date, ''GMT'', ''Europe/Paris''),''yyyy/mm'') ORDERBY_MONTHS, count(x.cep_work_item_no) REQ_RECEIVED, count(m.cep_work_item_no) REQ_STILL_OPEN,count(b.cep_work_item_no) REQ_AWAIT_ACCEPTANCE,count(e.cep_work_item_no) REQ_WITH_ATT, count(n.cep_work_item_no) REQ_CLOSED, count(o.cep_work_item_no) REQ_CANCELLED from emea_main x,m,b,e,n,o where x.cep_work_item_no=m.cep_work_item_no(+) and x.cep_work_item_no = b.cep_work_item_no(+) and x.cep_work_item_no=e.cep_work_item_no(+) and x.cep_work_item_no=n.cep_work_item_no(+) and x.cep_work_item_no=o.cep_work_item_no(+) and x.received_date is not null'; e_sql := e_sql|| where_sql||group_by_sql; OPEN rrc_rectyp FOR e_sql; LOOP FETCH rrc_rectyp INTO res_rec; EXIT WHEN rrc_rectyp%NOTFOUND; v_row.MONTHS := res_rec.MONTHS ; v_row.ORDERBY_MONTHS := res_rec.ORDERBY_MONTHS ; v_row.REQ_RECEIVED := res_rec.REQ_RECEIVED; v_row.REQ_STILL_OPEN := res_rec.REQ_STILL_OPEN; v_row.REQ_AWAIT_ACCEPTANCE := res_rec.REQ_AWAIT_ACCEPTANCE; v_row.REQ_WITH_ATT := res_rec.REQ_WITH_ATT; v_row.REQ_CLOSED := res_rec.REQ_CLOSED; v_row.REQ_CANCELLED := res_rec.REQ_CANCELLED; pipe ROW(v_row); END LOOP; RETURN; END monthly_analysis; And would also appreciate if someone can let me know as to what are the important plsql concepts used here so that I can go ahead and understand them in a better way and some small explanation would go long way. As suggested by dcp, i am trying to use debugger, again I have not used it before and so pardon me, here is what am getting: DECLARE REGION_ID_P VARCHAR2(200); COUNTRY_ID_P VARCHAR2(200); SUB_REGION_ID_P VARCHAR2(200); CUSTOMER_TYPE_ID_P VARCHAR2(200); RECEIVED_FROM_DATE_P VARCHAR2(200); RECEIVED_TO_DATE_P VARCHAR2(200); CUSTOMER_ID_P VARCHAR2(200); PRIORITY_ID_P VARCHAR2(200); WORK_GROUP_ID_P VARCHAR2(200); CITY_ID_P VARCHAR2(200); USER_ID_P VARCHAR2(200); v_Return GECEPDEV.AP_ANALYSIS_REPORT_TAB_TYPE; BEGIN REGION_ID_P := NULL; COUNTRY_ID_P := NULL; SUB_REGION_ID_P := NULL; CUSTOMER_TYPE_ID_P := NULL; RECEIVED_FROM_DATE_P := NULL; RECEIVED_TO_DATE_P := NULL; CUSTOMER_ID_P := NULL; PRIORITY_ID_P := NULL; WORK_GROUP_ID_P := NULL; CITY_ID_P := NULL; USER_ID_P := NULL; v_Return := ECEP_AP_REPORTS.MONTHLY_ANALYSIS( REGION_ID_P => REGION_ID_P, COUNTRY_ID_P => COUNTRY_ID_P, SUB_REGION_ID_P => SUB_REGION_ID_P, CUSTOMER_TYPE_ID_P => CUSTOMER_TYPE_ID_P, RECEIVED_FROM_DATE_P => RECEIVED_FROM_DATE_P, RECEIVED_TO_DATE_P => RECEIVED_TO_DATE_P, CUSTOMER_ID_P => CUSTOMER_ID_P, PRIORITY_ID_P => PRIORITY_ID_P, WORK_GROUP_ID_P => WORK_GROUP_ID_P, CITY_ID_P => CITY_ID_P, USER_ID_P => USER_ID_P ); -- Modify the code to output the variable -- DBMS_OUTPUT.PUT_LINE('v_Return = ' || v_Return); END; Can anyone guide me through this query and its goal ?

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  • Setting property of objects in datacontext

    - by ryudice
    Hi, all my entities have a common property which specifies the company they belong to, I would like to set this property in a method in my datacontext but I do not want to use the partial methods for each of the entity types that the datacontext provides, is there a method that receives any entity that is inserted throught the datacontext so that I can hook to it or override it and set the property using reflection? thanks.

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  • How to avoid overlapping date ranges when using a grouping clause?

    - by k rey
    I have a situation where I need to find time spans between value changes. I tried a simple group by clause but it eliminates overlapping changes. Consider the following example: create table #items ( code varchar(4) , class varchar(4) , txdate datetime ) insert into #items (code, class, txdate) values ('A', 'C', '2010-01-01'); insert into #items (code, class, txdate) values ('A', 'C', '2010-01-02'); insert into #items (code, class, txdate) values ('A', 'C', '2010-01-03'); insert into #items (code, class, txdate) values ('A', 'D', '2010-01-04'); insert into #items (code, class, txdate) values ('A', 'D', '2010-01-05'); insert into #items (code, class, txdate) values ('A', 'C', '2010-01-06'); insert into #items (code, class, txdate) values ('A', 'C', '2010-01-07'); insert into #items (code, class, txdate) values ('A', 'D', '2010-01-08'); insert into #items (code, class, txdate) values ('A', 'D', '2010-01-09'); select code , class , min(txdate) mindate , max(txdate) maxdate from #items group by code, class This returns the following results (notice the overlapping date ranges): |code|class|mindate |maxdate | ---------------------------------- |A |C |2010-01-01|2010-01-07| |A |D |2010-01-04|2010-01-09| I would like to have the query return the following: |code|class|mindate |maxdate | ---------------------------------- |A |C |2010-01-01|2010-01-03| |A |D |2010-01-04|2010-01-05| |A |C |2010-01-06|2010-01-07| |A |D |2010-01-08|2010-01-09| Any ideas and suggestions?

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  • C# Getting Just Date From Timestamp

    - by Soo
    If I have a timestamp in the form: yyyy-mm-dd hh:mm:ss:mmm How can I just extract the date from the timestamp? For instance, if a timestamp reads: "2010-05-18 08:36:52:236" what is the best way to just get 2010-05-18 from it. What I'm trying to do is isolate the date portion of the timestamp, define a custom time for it to create a new time stamp. Is there a more efficient way to define the time of the timestamp without first taking out the date, and then adding a new time?

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  • Finding the right terminology for a dictionary table

    - by Karl Forner
    My concern is about what I currently call "dictionary tables", that are database tables containing a list of controlled vocabulary. Let's use an example: Suppose you have a table User containing fields: user_id : primary key first_name last_name user_type_id : foreign key to the UserType table and another table UserType with just two fields: user_type_id : primary key name : the name/value of a particular type of user. For instance, the UserType table may contain (1, Administrator), (2, PowerUser), (3, Normal)... My question is: what is the canonical term for a table like UserType, that only contains a list of (dictinct) words. I want to publish some code that help managing this kind of tables, but first I have to name them ! Thanks for your help. Current state of thought: For now I feel Lookup Tables is a good term. It is also used with the same meaning in these posts: http://dbix-class.35028.n2.nabble.com/RFC-Component-for-Lookup-tables-td3504085.html http://tonyandrews.blogspot.de/2004/10/otlt-and-eav-two-big-design-mistakes.html Lookup Tables Best Practices: DB Tables... or Enumerations The only problem is that lookup table is also sometimes used to name a junction table.

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  • SMO some times doesn't display the instances in sql2008 cluster

    - by Cute
    Hi I have used SMO API.in that i have used SmoApplication.EnumAvailableServers(FALSE) and from that i have filtered local instances i have used this approch insted of true to make this as convinent for remote sqldiscovery also.using that api created a dll and use that dll in c++. Now this is working in all combinations but some times it is failed to retrieve the instannces in win2008 sql2008 cluster combination. if i run the exe for 5 times it got succeed for 3 times and failed for two times... What is wromg with win-sql2008 cluster .is there any additional changes needed to make it work properrly.My firewall is off and also added exception for tcp port 1433. Anyy help is greately Appreciated... Thanks in Advance.

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  • PostgreSQL - best way to return an array of key-value pairs

    - by Matt W
    I'm trying to select a number of fields, one of which needs to be an array with each element of the array containing two values. Each array item needs to contain a name (character varying) and an ID (numeric). I know how to return an array of single values (using the ARRAY keyword) but I'm unsure of how to return an array of an object which in itself contains two values. The query is something like SELECT t.field1, t.field2, ARRAY(--with each element containing two values i.e. {'TheName', 1 }) FROM MyTable t I read that one way to do this is by selecting the values into a type and then creating an array of that type. Problem is, the rest of the function is already returning a type (which means I would then have nested types - is that OK? If so, how would you read this data back in application code - i.e. with a .Net data provider like NPGSQL?) Any help is much appreciated.

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  • Storing i18n data in a database using XML

    - by TigrouMeow
    Hello, I may have to store some i18n-ed data in my database using XML if I don't fight back. That's not my choice, but it's in the specifications I have to follow. We would have, by example, something like following in a 'Country' column: <lang='fr'>Etats-Unis</lang> <lang='en'>United States</lang> This would apply to many columns in the database. I don't think it's a good idea at all. I tend to think that a cell in a database should represent a single piece of data (better for look-up), and that the database should have two dimensions maximum and not 3 or more (one request more would be required per dimension / a dimension here would be equal to the number of XML attributes). My idea was to have a separate table for all the translations, with columns such as : ID / Language / Translation. However, I should admit that I'm really not sure what is the best way to store data in various languages in a DB... Thanks for your advices :)

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  • Mysql stored procedure where clause

    - by Mneva skoko
    I am having a problem with this stored procedure: Delimiter // Create procedure(in varchar(50)) Begin Select * from employees where email = eml; End// Delimiter ; I don't get errors when I run this procedure but when i call it in my php script it returns nothing.

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  • Sql query to get this result..

    - by bala3569
    Consider i have a user table and i have three columns mobilePhone,homePhone and workPhone... I have to select homePhone for every user as first pref if there is no value i ll go for mobilePhone and if there is no value for it i ll go for workPhone.... Any suggestion how it can be done in mysql..

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  • Index on column with only 2 distinct values

    - by Will
    I am wondering about the performance of this index: I have an "Invalid" varchar(1) column that has 2 values: NULL or 'Y' I have an index on (invalid), as well as (invalid, last_validated) Last_validated is a datetime (this is used for a unrelated SELECT query) I am flagging a small amount of items (1-5%) of rows in the table with this as 'to be deleted'. This is so when i DELETE FROM items WHERE invalid='Y' it does not perform a full table scan for the invalid items. A problem seems to be, the actual DELETE is quite slow now, possibly because all the indexes are being removed as they are deleted. Would a bitmap index provide better performance for this? or perhaps no index at all?

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  • SSIS - Multiple Configurations

    - by Mick Walker
    I have inherited a SSIS project. I have never worked with SSIS before, and the one thing that seems strange to me, is that there is no way to manage multiple configurations. For each SSIS package we have 3 delpoyment environments, DEV, UAT and PRODUCTION. At the moment I am having to edit the configuration for every package we deploy manually for each change (and there are a lot of packages). Does anyone know of a more graceful way to handle these configuration changes?

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  • file handling in .net

    - by Indranil Mutsuddy
    I have developed an application in vb.net2008 and database sqlserver. Now i want to ignore the database (it has 1 table as customer(name,password,hour,minute)) as i dont want my client to install sqlserver separately or other overheads. I am planning to do the whole using file handling in vb.net(manipulating the data in files itself eg change username, password etc). As I am new i don't actually know the proper way and of course need assistance.

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  • LINQ - Contains with anonymous type

    - by Marlos
    When using this code (simplified for asking): var rows1 = (from t1 in db.TABLE1 where (t1.COLUMN_A == 1) select new { t1.COLUMN_B, t1.COLUMN_C }); var rows2 = (from t2 in db.TABLE2 where (rows1.Contains(t2.COLUMN_A)) select t2; I got the following error: The type arguments for method 'System.Linq.Enumerable.Contains(System.Collections.Generic.IEnumerable, TSource)' cannot be inferred from the usage. Try specifying the type arguments explicitly. I need to filter the first result by COLUMN_B, but I don't know how. Is there a way to filter it?

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  • WSSQL query for multiple computers at once

    - by Josh
    I can run normal searches just fine. Windows 7 won't let me add a network share to my local index, but I can query the remote index just fine. The problem is that I can't find a way to query two indexes at once. I was hoping that something like this would work: SELECT System.ItemName FROM compA.SystemIndex, compB.SystemIndex WHERE SCOPE='file://compA/pathA' OR SCOPE='file://compB/pathB' but it doesn't. For simple queries, I can query compA and compB separately and then merge the results myself, but I'm hoping for a better way. Anybody here have some experience with this?

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  • Databinding multiple tables linq query to gridview?

    - by Curtis White
    My question is how can I display a linq query in a gridview that has data from multiple tables AND allow the user to edit some of the fields or delete the data from a single table? I'd like to do this with either a linqdatasource or a linq query. I'm aware I can set the e.Result to the query on the selecting event. I've also been able to build a custom databound control for displaying the linq relations (parent.child). However, I'm not sure how I can make this work with delete? I'm thinking I may need to handle the delete event with custom code.

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  • Table names, and loop to describe

    - by Greg
    Working in Oracle 10g. Easy way to list all tables names (select table_name from dba_tables where owner = 'me') But now that I have the table names, is there an easy way to loop through them and do a 'describe' on each one in sequence?

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  • How transform this find_by_sql to named_scope?

    - by keruilin
    How can I possibly turn into named_scope? def self.hero_badge_awardees return User.find_by_sql("select users.*, awards.*, badges.badge_type from users, awards, badges where awards.user_id = users.id and badges.id = awards.badge_id and badges.badge_type = 'HeroBadge'") end

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  • transforming from 'Y' or 'N' to bit

    - by rap-uvic
    Hello, I have a table which has a column called Direct of type char(1). It's values are either 'Y' or 'N' or NULL. I am creating a view and I want the value to be transformed to either 0 or 1 of type bit. Right now it's of type INT. How do I go about doing this? Following is the code: CASE WHEN Direct = 'Y' THEN (SELECT 1) WHEN Direct <> 'Y' THEN (SELECT 0) END AS DirectDebit

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  • ASP.NET MVC Deployed Application Server Address

    - by Jacob Huggart
    I have an application that sends an email to a user so that they may access a web form. In the email there is just a link to the start page of this form. Currently, I have the value for the form location hardcoded. Once the app is deployed I know it is in inetpub/wwwroot/appName, which results in a URL of serverip:appPort/appName. What is the C# to get the serverip:appPort portion of the URL that I need? I think that server.mappath() might work, but for some reason I can't get to the method even though I have the necessary references.

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