Search Results

Search found 8362 results on 335 pages for 'rainbow tables'.

Page 168/335 | < Previous Page | 164 165 166 167 168 169 170 171 172 173 174 175  | Next Page >

• Best database (mysql) structure for this case:

  - by robert

  we have three types of data (tables): Book (id,name,author...) ( about 3 million of rows) Category (id,name) ( about 2000 rows) Location (id,name) ( about 10000 rows) A Book must have at least 1 type of Category (up to 3) AND a Book must have only one Location. I need to correlate this data to get this query faster: Select Books where Category = 'cat_id' AND Location = 'loc_id' Select Books where match(name) against ('name of book') AND Location = 'loc_id' Please I need some help. Thanks

  Read the article

• MSSQL using SSH-tunnel from Visual Studio

  - by pbt

  Hi, I recently contacted a web host regarding support for external database access to a Microsoft SQL Database included in a package they offer. They replied saying that it is only possible with an SSH-tunnel. Is it possible to connect to a MS SQL database in Visual Studio using an SSH-tunnel? It is important for me to be able to access the database from my local machine (for debugging, generating LINQ classes, editing tables, etc). Or, how should I go about working with their database?

  Read the article

• Question about Benchmark funcion in Mysql ( Incredible results ).

  - by xRobot

  I have 2 tables: author with 3 millions of rows. book with 20 miles rows. . So I have benchmarked this query with a join: SELECT BENCHMARK(100000000, 'SELECT book.title, author.name FROM `book` , `author` WHERE book.id = author.book_id ') And this is the result: Query took 0.7438 sec ONLY 0.7438 seconds for 100 millions of query with a join ??? Do I make some mistakes or this is the right result ?

  Read the article

• about sql server merge statement

  - by George2

  Hello everyone, I am using SQL Server 2008 Enterprise DB and using the new Merge statement (when source and target are both SQL Server 2008 DB tables), and it works well. I have another database table which is hosted in SQL Server 2005 Enterprise DB. I want to know whether Merge statement could using one table of SQL Server 2008 as source, and another tableof SQL Server 2005 as target? The two databases may not exist on the same machine. thanks in advance, George

  Read the article

• how Do I list all table names in SQL Server using T-SQL?

  - by shrimpy

  SELECT name FROM sys.databases -- this can list all database name in the server user database SELECT * FROM INFORMATION_SCHEMA.TABLES -- these two line can list the table for one particular database But how can I output the results like below? Database Table --------- ------------- db1 t1 db1 t2 db2 t1 ... ...

  Read the article

• Installer package for program that uses JDBC to connect to MySQL....

  - by eli1987

  I have an installer wizard thing called 'install creator'. I want to include my mySQL database into the installer or find another way that the user, upon installation, can just use my database. Prob is-not everyone has MySQL installed on the computer and even then, the user doesn't know the name of the database or my password. Somehow the database must be created automatically upon install, and for my purposes, some of the tables created. How can one do this. Thanks

  Read the article

• Queries stuck in "copying to tmp table"

  - by Parik

  I am running some sample tests against mysql, and finding that there are a bunch of queries which are stuck in "copying to tmp tables". They remain stuck in the same state. They are usually aggregate queries and I can kill those queries. But how can I find out what is causing them to be stuck? I am using mysql 5.1.42 with the innodb plugin.

  Read the article

• data to be saved in SQLite and want to retrive data from there

  - by Mona

  In android, is it possible that we insert our database in SQLite and get back that data on our EditText boxes. I want to get data from database and populate it in my application activity. How can i do that. I want to save, update and delete my database in SQLite and most important i want to get data from database that is saved in SQLite tables. How can it be possible. Kindly guide. I will be thankfull to you

  Read the article

• Hibernate's version values in Grails app

  - by xain

  I'm looking at a database dump file, and I see many records in various tables with their version number set in values other than 0 (even 94 in one case). I understand it has to do with hibernate locking strategy, but my concern is that today is Sunday, and the site has almost no visitors so is: is this normal ? Or is there a known hibernate bug or even some programming malpractice producing this ?

  Read the article

• How to do paging in master-detail report(SSRS)?

  - by Praneet Kaur

  I want the paging of master-detail report (SSRS) in detail table, i have joined two tables for datasource. I have given the expression in table group like this '=Int((RowNumber("list1_Details_Group")-1)/12)' but it breaks the page after every list instead of rows????

  Read the article

• how to generate the "create table" sql statement for an existing table in postgreSQL

  - by Raja

  I have a table created long ago in postgreSQL. Now i want to look at the sql statement used to create it but cannot figure it out. Also when i do the \dS+ tablename it says table not found, but \dt+ tablename is working fine. The \dS+ lists all the table names owned by the root postgres user and doesn't show up tables that i created with my user account. Any help is greatly appreciated. Thanks

  Read the article

• Difficults on sql query

  - by João Madureira Pires

  I have the following tables: TableA (id, tableB_id, tableC_id) TableB (id, expirationDate) TableC (id, expirationDate) I want to retrieve all the results from TableA ordered by tableB.expirationDate and tableC.expirationDate. thanks

  Read the article

• how does sql count work?

  - by ria

  I would like to understand how exactly does sql count work. Is it a whole table scan that happens or is it some property of the table that is read. However I feel a table scan would be an overhead in case of huge tables with lots of records.

  Read the article

• Hibernate one to one with multiple columns

  - by Erdem Emekligil

  How can i bind two columns, using @OneToOne annotation? Lets say I've 2 tables A and B. Table A: id1 (primary key) id2 (pk) other columns Table B: id1 (pk) id2 (pk) other columns In class A i want to write something like this: @OneToOne(fetch = FetchType.EAGER, targetEntity = B.class) @JoinColumn(name = "id1 and id2", referencedColumnName = "id1 and id2") private B b; Is it possible to do this using annotations? Thanks.

  Read the article

• How to refer to a text in an Ms Access table?

  - by manuel

  I want to refer to a data cell, which if it is equals to some string, it will do something. The codes: If ds.Tables(0).Rows(i)("Status") = "Reserved" Then MessageBox.Show("Can't reserve") End If Is this the correct way to do this? Because I failed doing so..

  Read the article

• how to avoid deadlock in mysql

  - by noam

  I have the following query (all tables are innoDB) INSERT INTO busy_machines(machine) SELECT machine FROM all_machines WHERE machine NOT IN (SELECT machine FROM busy_machines) and machine_name!='Main' LIMIT 1 Which causes a deadlock when I run it in threads, obviously because of the inner select, right? The error I get is: (1213, 'Deadlock found when trying to get lock; try restarting transaction') How can I avoid the deadlock? Is there a way to change to query to make it work, or do I need to do something else?

  Read the article

• What is a hash map in programming and where can it be used

  - by Saif Bechan

  I have often heard people talking about hashing and hash maps and hash tables. I wanted to know what they are and where you can best use them for.

  Read the article

• Move row from one table to another?

  - by lance

  I have two tables with the same column definitions. I need to move (not copy) a row from one table to another. Before I go off and use INSERT INTO/DELETE (in a transaction), is there a smarter way? SQL Server 2005

  Read the article

• Is there something like SqlAlchemy's SqlSoup for Java?

  - by Lokkju

  I'm looking for a Java ORM that works from database reflection - I need to just point it at a DB, and start being able to walk through the entire set of tables, etc. Ideas?

  Read the article

• Copying a Table in MySQL and including the Primary Key

  - by Alan Storm

  I have an ancient code snippet I use for copying tables in MySQL. CREATE TABLE new_table (select * from old_table); This works great, with one exception. It doesn't copy the primary key or other table indexes. Is there any way to copy a table in MySQL AND include the indexes/primary key??

  Read the article

• how to insert a jpeg image into an excel sheet

  - by Shiny

  Im able to generate tables with all required columns and with datas in excel sheet. now i want to insert image that is present in my bin.how can i achieve this. thanks in advance

  Read the article

• mysql joins - how to find all children that belongs to ALL parents

  - by kimsia

  I have three mysql tables items the columns are id, title items_in_categories the columns are id, item_id, category_id categories the columns are id, title I want to find all the items that belong to ALL the stated categories. Not any one category, but ALL categories Eg, if I want to search all the items that belongs to category id 3 and 5 I would like to use as simple a way as possible. I have tried AND and a nested NOT EXISTS as stated in the mysql manual. Nothing worked.

  Read the article

• Generate XSD from 2005 SQL Server Database

  - by Robert Finlayson

  What is the easiest method to generate an XSD schema from a 2005 SQL Server Database? Would it be possible to generate one XSD schema for the entire Database (~100 tables)? I searched online and found a SQL example that generates one XSD for the one table: DECLARE @schema xml SET @schema = (SELECT * FROM MyTableName FOR XML AUTO, ELEMENTS, XMLSCHEMA('MyTableNameSchema')) SELECT @schema Outside of SQL Server, is there a third party tool that could generate the XSD file from the 2005 Database?

  Read the article

• MySql selecting default value if there are no result?

  - by Kenan

  i'm having 2 tables: members and comments. I select all members, and then join comments. But in comments I'm selecting some SUM of points, and if user never commented, I can't get that user in listing?! So how to select default value for SUM, or some other solution: SELECT c.comment_id AS item_id, m.member_id AS member_id, m.avatar, SUM(c.vote_value) AS vote_value, SUM(c.best) AS best, SUM(c.vote_value) + SUM(c.najbolji)*10 AS total FROM members m LEFT JOIN comments c ON m.member_id = c.author_id GROUP BY c.author_id ORDER BY m.member_id DESC LIMIT {$sql_start}, {$sql_pokazi}

  Read the article

• SQL. Sorting by a field

  - by strakastroukas

  I have created a simple view consisting of 3 tables in SQL. By right clicking and selecting Design, in the Object explorer table, i modified my custom view. I just added sortby asc in a field. The problem is that the changes are not reflected in the outout of the View. After saving the view, and selecting Open view the sort is not displayed in output. So what is going on here?

  Read the article

< Previous Page | 164 165 166 167 168 169 170 171 172 173 174 175  | Next Page >