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• How to concatenate all the records in a column returned by a query into one varchar string in T-SQL?

  - by Ivan

  A query (SELECT/FUNCTION/VIEW/PROCEDURE) returns a column of varchar records. I need to concatenate them all into one single varchar line. How do I best do it in T-SQL?

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• How to SELECT the last 10 rows of an SQL table which has no ID field?

  - by Edward Tanguay

  I have an MySQL table with 25000 rows. This is an imported CSV file so I want to look at the last ten rows to make sure it imported everything. However, since there is no ID column, I can't say: SELECT * FROM big_table ORDER BY id DESC What SQL statement would show me the last 10 rows of this table? The structure of the table is simply this: columns are: A, B, C, D, ..., AA, AB, AC, ... (like Excel) all fields are of type TEXT

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• CF9's Apache Lucene vs SQL Server's full text search?

  - by Henry

  ColdFusion 9's full text search is now based on Apache Lucene. We also use SQL Server. Which one's better? Which one's easier? Thanks!

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• Will performance of a SQL server degrade if the DB can't fit in the memory?

  - by Carl Hörberg

  Will the performance of a SQL server drastically degrade if the database is bigger than the RAM? Or does only the index have to fit in the memory? I know this is complex, but as a rule of thumb?

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• Linq to SQL: How to delete using only the primary key?

  - by Jeremy

  How do I delete a record using Linq to SQL using only the primary key, without having to retrieve the exsting record from the database?

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• Setting up a linked server to another server which isn't in a domain without using SQL authenticatio

  - by Telos

  Server A (SQL2005) is in our primary domain, but server B (SQL2000) is just in a windows workgroup. We are not allowed to join it to the domain, or bad things happen... We also can't enable SQL authentication on server B. We've got domain accounts for A, and matching local accounts on server B. I can connect to B from my local PC or A using SSMS and a domain login, but I can't get the linked server to connect. Any ideas how to do this?

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• How can I get a JSON object from a SQL Server table?

  - by jlech

  I have a view that I want to be converted into JSON. What is the SQL that I can use to produce on the server the JSON string needed to be returned?

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• In SQL, can we always write an inner join statement as a main query and subquery if we only want to

  - by Jian Lin

  In SQL, can we always write an inner join statement as a main query and subquery or vice versa if we only want to find the intersection? 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. But if all we care is to find the intersection, without caring what is being displayed, then we can always convert one to the other?

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• Where does sql server stores the stored procedure code?

  - by NoProblemBabe

  I once needed the lines of the stored procedures, to be able to trace whether i have a reference to some function, procedure or table, or sometimes to try to find something inside of the sp's code. Where does the sql server stores the procedures's code?

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• Can you create a linked server in SQL Server and then refer to it with an alias

  - by Craig HB

  Can you create a linked server in SQL Server 2008 and then refer to it with an alias. So, I create a linked server to "SalesServer", but I give it the alias "Sales", so I can use it like this: SELECT * FROM Sales.DB1.dbo.DailySales

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• How rigid is the max size of a VARCHAR in SQL Server?

  - by thinknow

  i.e. if I create a VARCHAR(50) field, what happens if I try to assign it a value that's 100 characters long? Will SQL Server let me do this? Is it somehow less efficient?

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• How about performance of linq to sql, Entity Framework and NHibernate?

  - by Abonec

  I was learning this ORM because think this is good technology for most projects. But most employers required acquirement of ADO.NET and SQL. This ORM not will use in high-loaded system (like popular web-sites)? In which types of projects this ORM will be useful? Are highly loaded projects using ORM?

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• Can someone give me some basic XSS and sql injection scripts? (not what it seems)

  - by ggfan

  I am testing out my scripts to see if they will prevent xss and sql injections. Can someone provide me with some basic but good scripts that would "hack" into my programs. I want to test my scripts before it goes online.

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• How to insert hyperlink into access database via sql?

  - by CSharperWithJava

  I have a fairly simple MS Access Database that contains some metadata about a bunch of documents and a hyperlink field that links to the document on our network drive. However, when I use a SQL INSERT statement to populate the hyperlink field, the value I give it only becomes the display text, not the actual link. How can I make the value a functional hyperlink? I'd think that the hyperlink data type would actually create hyperlinks. I'm using Access 2002 SP3.

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• How can I compare tables in two different databases using SQL?

  - by chama

  I'm trying to compare the schemas of two tables that exist in different databases. So far, I have this query SELECT * FROM sys.columns WHERE object_id = OBJECT_ID('table1') The only thing is that I don't know how to use the sys.columns to reference a database other than the one that the query is connected to. I tried this SELECT * FROM db.sys.columns WHERE object_id = OBJECT_ID('table1') but it didn't find anything. I'm using SQL Server 2005 Any suggestions? thanks!

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• Is it possible to use SQL Server Compact Edition in an Open Source project?

  - by Sergi

  I am aware of other solutions like System.Data.Sqlite or Firebird through Dblinq, but since nothing beats SQL Compact Edition (integration-wise) with Visual Studio, I would like to use it and to know if its license allows its usage in Open Source projects. Thanks.

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• Which is faster in SQL, While loop, Recursive Stored proc, or Cursor?

  - by Casey

  Which is faster in SQL, While loop, Recursive Stored proc, or Cursor? I want to optimize the performance in a couple of spots in a stored procedure. The code I'm optimizing formats some strings for output to a file.

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• How to find out whether sql server login has any user mapped to using SMO.

  - by Ybbest

  I need to write a function to delete the login in the database if it does not have any users to map to using SQL Server Management Objects (SMO). How can I achieve this ?

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• How to automatically generate documentation of stored procedures of SQL Server 2008?

  - by gilbertc

  How to automatically generate documentatation of stored procedures of SQL Server 2008 like doxygen does to codes? I read about hyperSQL but it doesn't work nice with Windows. Thanks! Gil.

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• Can a sql server aggregate udf be passed in multiple parameters?

  - by Burg

  I am trying to write an aggregate udf for using Sql Server 2008 and C# 3.5 that implodes an aggregation of data. The kind of syntax I am looking for is: SELECT [dbo].[Implode]([Id], ',') FROM [dbo].[Table] GROUP BY [ForeignID] where the second parameter is the delimiter for the aggregate function. And example return value would be something like: 1,4,56 Is there a way to have multiple parameters in an aggregate udf?

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• How do I check if a Linq to SQL entity has grandchildren?

  - by EdenMachine

  How can I find out if a Linq to SQL entity has grandchildren or not? Pseudo-code below: Return From p In dc.Processes Where p.Signers.Count > 0 and p.Signers.Signatures.Count > 0 Obviously I can't run the code above but I need to make sure that all the returning Processes have at least one Signer and that all of those Signers have at least one Signature. TIA!

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• Good test database on Windows to play around with data retrieval operations in SQL?

  - by ovr

  I need a test database to practice joins and other kinds of data retrieval operations in SQL. What's a good free test database and RDBMS system to use on Windows?

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• In sql server, is there any way to check whether the schema change will impact on the stored procs?

  - by ziang

  In SQL Server, is there any way to check whether the changes in the schema will impact Stored Procedures (and/or Views)? For example a change of the column name in one table, may break some Stored Procedures; how to check the impacted stored procs?

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• Why does Sql 2008 suggest I have the Primary Key Column as an Included Column in an Index

  - by Raine

  Sql 2008 is telling me to include the Primary Key in an index in the Included Column field. I thought the PK was automagically returned with all indexes?

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• How can I connect to SQL Server using (local)\INSTANCE_NAME?

  - by Brandon

  I have a developer that is having trouble connecting to a SQL Server instance by entering the server name (local)\HIS_SERVER_INSTANCE into Visual Studio-Server Explorer. If he replaces (local) with his machine name, it connects fine. I have had similar issues before but they seemed to fix themselves. Does anyone know a fix for this?

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