= tsql =
Microsoft Transact SQL (t-sql)

== Show stored procedure or function  code ==
{{{#!highlight sql
exec sp_helptext 'schema.storedProc'
exec sp_helptext 'schema.function'
}}}

== Show CLR assemblies ==
{{{#!highlight sql
-- get assembly_id
select * from sys.assembly_modules
}}}

== Extract SQL CLR assembly ==
[[http://serverfault.com/questions/139703/extracting-a-sqlclr-assembly]]

{{{#!highlight sql
-- reconfigure
sp_configure 'show advanced options', 1;
GO
RECONFIGURE;
GO
sp_configure 'Ole Automation Procedures', 1;
GO
RECONFIGURE;
GO

-- extract assembly
DECLARE @IMG_PATH VARBINARY(MAX)
DECLARE @ObjectToken INT

SELECT @IMG_PATH = content FROM sys.assembly_files WHERE assembly_id = 65824 and file_id=1

EXEC sp_OACreate 'ADODB.Stream', @ObjectToken OUTPUT
        EXEC sp_OASetProperty @ObjectToken, 'Type', 1
        EXEC sp_OAMethod @ObjectToken, 'Open'
        EXEC sp_OAMethod @ObjectToken, 'Write', NULL, @IMG_PATH
        EXEC sp_OAMethod @ObjectToken, 'SaveToFile', NULL, 'c:\windows\temp\65824.dll', 2
        EXEC sp_OAMethod @ObjectToken, 'Close'
        EXEC sp_OADestroy @ObjectToken
}}}

== Number seconds between two dates ==
{{{#!highlight sql
SELECT datediff(second, dateX1, GETDATE() )
FROM tablex
}}}

== Convert dates to string ==
Convert types:
http://msdn.microsoft.com/en-us/library/ms187928%28SQL.90%29.aspx

{{{#!highlight sql
SELECT CONVERT(NVARCHAR(30), GETDATE(), 126)
2009-05-01T14:18:12.430

SELECT CONVERT(NVARCHAR(30), GETDATE(), 120)
2009-05-01 14:18:12
}}}