Exporting T-SQL scripts from command line

I presume when you say scripts you are referring to stored procedures. If you don't want to script objects using...

the GUI the best way is to do this using the SCRIPT method of SQL-DMO. The technical reference is here: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/sqldmo/dmoref_m_s_0n1g.asp.

An example of this would be:

Dim server
Dim sp

SET server=CreateObject("SQLDMO.SQLServer")
server.LoginSecure=True

server.Connect "."

For Each sp in server.Databases("Northwind").StoredProcedures

 If Not sp.SystemObject then

  sp.script 68,"c:\" & sp.name & "_script.sql"
 End If

Next

To determine if the SP has been changed since last time you scripted it will be a little more difficult. You will need to check and retain the values of two columns from sysobjects table. The crdate column will tell you the last time the stored procedure was dropped and recreated. The schema_ver column will change every time the stored procedure is ALTER'd. You will need to track both for each stored procedure.

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