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• SQL: ... WHERE X IN (SELECT Y FROM ...) ...

  - by Craig Johnston

  Is the following the most efficient in SQL to achieve its result: SELECT * FROM Customers WHERE Customer_ID NOT IN (SELECT Cust_ID FROM SUBSCRIBERS) Could some use of joins be better and achieve the same result?

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• In SQL, can we always write an inner join statement as a main query and subquery?

  - by Jian Lin

  In SQL, can we always write an inner join statement as a main query and subquery? For example, select * from gifts g where g.giftID in (select giftID from sentGifts); can do a join and show the gifts sent in the sentGifts table, but it won't be able to show the sentTime because that is inside the subquery?

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• how to show only even or odd rows in sql server 2008 ?

  - by Gold

  hi i have a table MEN in sql server 2008 that contain 150 rows. how i can show only the even or only the odd rows ? thank's in advance

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• How do I add a record only if it doesn't already exist in SQL Server?

  - by menacheb

  Hi, I have a project in C# with a Sql-server Database. In that database I have a table named 'Process' and columns named 'process_name', 'Full_Name' and 'Version' (all of the type:nvarchar(50)). I want to write a query wich will add the new process, only if it doesn't exist in the table yet. How can I do that? Many thanks,

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• SQL SERVER Query result in CSV format is possible?

  - by gopal

  Hi, Is it possible to get the query result in .CSV file format from SQL SERVER 2000 and above versions? If so can we use this feature from an asp.net application to get the result in CSV format? If so how can we do this?

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• Does Hibernate log the values that it assigns to placeholders in prepared SQL statements?

  - by Derek Mahar

  Does Hibernate log the values that it assigns to placeholders in prepared SQL statements? How can configure Log4j so that it writes these values to my log files?

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• SQL CE, SQLite. What are the differences between them?

  - by acidzombie24

  What is the difference between SQL CE and SQLite? In what situation would i choose one over the other?

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• LINQ to SQL .Count takes way to much process time and decreases performances.

  - by soldieraman

  LINQ to SQL .Count takes way to much process time and decreases performances. I am doing a recursive loop and for one child (lets call it parent) I have to check the number of children under it to make a decision if it should be included or not. The Count is too slow 8 ms :( for 120 parent records. Any ideas to make it quicker.

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• sql server: looking for table usage through out database...

  - by dotnet-practitioner

  How would I figure out what type of sql code such as procs, functions, views etc. are interacting with my table called TABLE1 through out a given database. Sample code would be very helpful for me. thanks

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• how to get time (hh:mm:ss) from sql query ?

  - by Gold

  hi i have Database with date field. i see the time like: 1900-01-01 13:38:00.000 how i can see it like: 13:38 ? (i work on sql server 2008) thank's in advance

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• I have a problem saving foriegn text to a SQL Server database table with a nvarchar field.

  - by user307840

  I have a requirement to have a multiline textbox that accepts any text from any language and stores this into the database for later use. I am using Linq with ASP .NET 3.5 with a SQL Server 2005 database. Any/all information you can provide me with is much appreciated :D

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• How do I insert records into 2 SQL tables sharing a dependency when I don't commit until the end?

  - by Cunning Lingus

  I keep finding myself in this situtation: I have an ASP.NEt 2.0 app. I have to insert into 2 tables in SQL. There is a dependency between the tables. I insert a record the first using a transaction. Then I move onto the 2nd table. But, because the first isn't committed yet the second one throws a error.

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• What SQL query should I perform to get the result set expected?

  - by texai

  What SQL query should I perform to get the result set expected, giving the first element of the chain (2) as input data, or any of them ? table name: changes +----+---------------+---------------+ | id | new_record_id | old_record_id | +----+---------------+---------------+ | 1| 4| 2| | -- non relevant data -- | | 6| 7| 4| | -- non relevant data -- | | 11| 13| 7| | 12| 14| 13| | -- non relevant data -- | | 31| 20| 14| +----+---------------+---------------+ Result set expected: +--+ | 2| | 4| | 7| |13| |14| |20| +--+ I know I should consider change my data model, but: What if I couldn't? Thank you in advance!

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• How to distinguish between the first and rest for duplicate records using sql ?

  - by Biswanath

  Hi, These are the input table and required output table. Input table ID Name ------------- 1 aaa 1 ababaa 2 bbbbbb 2 bcbcbccbc 2 bcdbcdbbbbb 3 ccccc Output table ID Name Ord ----------------------------- 1 aaa first 1 ababaa rest 2 bbbbbb first 2 bcbcbccbc rest 2 bcdbcdbbbbb rest 3 ccccc first First and Rest is based on the occurrence of an ID field. Is there a way to write a SQL query to achieve this ? P.S. - This question is somewhat similar to what I am looking for.

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• Any DAL generators that will work on .NET 1.1 with SQL CE 3.1?

  - by Schneider

  Are there any DAL generators or ORMs that will work on .NET 1.1 with SQL CE 3.1? This is only for a short lived project, so cost would be an issue

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• SQL Exception: A truncation error was encountered trying to shrink VARCHAR '...' to length x

  - by Tom Brito

  I know really little about sql, can anyone give me a deeper explanation (or references) of what do this exception means? Possible related question: http://stackoverflow.com/questions/1016901/truncate-a-varchar-to-specific-length-in-derby-automatically

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• PHP: How do I find (Oracle) parameters in a SQL query?

  - by Bartb

  Suppose you have a string: "SELECT * FROM TABLE WHERE column1 = :var1 AND column2 = :var2" Now, how do I get an array with all the variables like so: Array ( [0] => :var1 [1] => :var2 ) I've tried it with PHP's preg_match_all, but I struggle with the regex. $varcount = preg_match_all("/ :.+ /", $sql, $out);

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• Do I need to translate (local) in a sql server connection string?

  - by DanDan

  When connecting to sql server, I have the hardcoded string "(local)". Is this a string I need to make available for localisation? ie, does (local) always work no matter the current language settings?

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• How to write or append to text file using sql?

  - by aron

  Hello, in short i need to convert following C# code into SQL stored procedure foreach (var e in Entity) { if (File.Exists(e.Filename)) File.AppendAllText(e.Filename,e.Content); else File.WriteAllText(e.Filename, e.Content); }

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• How can I return a substring of a LINESTRING in SQL Server 2008 Spatial?

  - by sabbour

  Say I have a LINESTRING defined as LINESTRING(-122.360 47.656, -122.343 47.656, -122.310 47.690, -122.310 47.670, -122.300 47.630) And I want to get a substring from POINT(-122.360 47.656) to POINT(-122.310 47.690) How can I return a substring of a LINESTRING in SQL Server 2008 Spatial?

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• How can this SQL be wrong? What am I not seeing?

  - by ropstah

  Can anybody please spot my error, this should be a legal query in SQL shouldn't it?? Unknown column u.usr_auto_key in the ON clause This is the database schema: User: (usr_auto_key, name, etc...) Setting: (set_auto_key, name etc..) User_Setting: (usr_auto_key, set_auto_key, value) And this is the query... SELECT `u`.`usr_auto_key` AS `u__usr_auto_key`, `s`.`set_auto_key` AS `s__set_auto_key`, `u2`.`usr_auto_key` AS `u2__usr_auto_key`, `u2`.`set_auto_key` AS `u2__set_auto_key`, `u2`.`value` AS `u2__value` FROM `User` `u`, `Setting` `s` LEFT JOIN `User_Setting` `u2` ON `u`.`usr_auto_key` = `u2`.`usr_auto_key` WHERE (`s`.`sct_auto_key` = 1 AND `u`.`usr_auto_key` = 1 AND admin_property is null)

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• Is there any SQL Server database designer software like MySQL workbench?

  - by newbie

  I need to design database for SQL Server, is there any MySQL workbench like software for that? I have access to MSDN, so it can also be commercial product that can be found form MSDN.

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• In SQL Server, how can I separate a large number of tsql statement into batches?

  - by Yousui

  Hi guys, In SQL Server, how can I separate a large number of tsql statement into batches? Should I use the GO statement in stored procedures or functions? Should I use the GO statement in explicit transaction management situation(between BEGIN TRANSACTION and ROLLBACK TRANSACTION or COMMIT TRANSACTION)? Are there some best practice about this topic? Great thanks in advance.

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• In SQL Server 2008 is there a way to generate a report as to how much space on disk each table takes

  - by Matt

  IN SQL Server 2008 is there a way to generate a report as to how much space on disk each table takes? I can do it one by one by checking the storage properties, but I was wondering if there was a way, maybe even a query to generate such a report.

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• How can I set default seed for all identities within a SQL Server database?

  - by Brandon DuRette

  Is there a way to tell SQL server to use specific default seed value for IDENTITY columns - assuming the (to be run) CREATE TABLE statements do not specify one? I don't really care about altering existing data or altering the seed values for specific IDENTITY columns. I want the same seed for all newly created identity columns. Assume I cannot modify the individual CREATE TABLE statements in any way.

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