How To Change The Database Context And Modify Tables?

Oct 4, 2007

I have 30+ databases in sql 2000.

I want to dynalically loop though each of the databases and alter a column named 'EmpName' for all the 'Employees' tables in that database.

Here is my attempt.use Master


declare @SQLString Nvarchar(1000)

declare @DBName Nvarchar(100)

declare @SQL2 NVARCHAR(1000)declare @TABLE_NAME NVarchar(100)


SELECT name FROM sysdatabases





      SET @SQL2 = 'USE ' + @DBNAME + ' ALTER TABLE ' + @TABLE_NAME + ' MODIFY EmpName varchar(100)'

     from information_schema.tables where table_type = 'BASE TABLE' and table_name like '%Employees%'      PRINT @SQL2


fetch next from curDB into @DBName


Close curDB


When i execute the above script in master, it says 'Query executed successfully' but when i see the all the Employees table in each of the database, the required change is not made.

Can anybody explain this or give an alternate solution? 



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How To Change Database Context Dynamically In SQL 2000

Oct 4, 2007

I am using Sql Server 2000.
I have about 25+ databases . I want to run a series of commands on each database... how can I change the database context - the current database - dynamically in a loop...
something like this below:

declare @SQLString Nvarchar(1000)

declare @DBName Nvarchar(100)

declare @SQL2 NVARCHAR(1000)

declare @TABLE_NAME NVarchar(100)



SET @SQL2 = 'USE ' + @DB_NAME + ';GO;ALTER TABLE ' + @TABLE_NAME + ' MODIFY Name varchar(100)'




I am getting an error when i run the above commands:
Msg 170, Level 15, State 1, Line 1
Line 1: Incorrect syntax near 'GO'

Can someone give me the correct solution?

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Code Snippet

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My version: Standard SQL Server 2005 9.0.3054 on Windows 2003 R2 SP2 (3790).


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