SQL SERVER 2008 TRIGGER ON CREATE TABLE

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感情败类 2021-01-23 00:12

Is there a way to run some function like a trigger when a table is created in the database in SQL SERVER 2008?

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  • 2021-01-23 00:39

    Yes, it's called a DDL trigger. The documentation for CREATE TRIGGER has a sample for DROP_SYNONYM (a very questionable choice for an example) but you'll want the CREATE_TABLE event instead. A better starting point in understanding how they work is probably here:

    http://msdn.microsoft.com/en-us/library/ms190989.aspx

    If you have more specific details, e.g. what exactly do you want to pass to this function (I assume you mean procedure), or what does the procedure do, we can provide more useful and specific help.

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  • 2021-01-23 00:39

    Yes a DDL Trigger. For example, here is some code I written to prevent some tables from being modified:

    PRINT N'Create DDL trigger to prevent changes to various tables'
    GO
    SET QUOTED_IDENTIFIER ON
    GO
    CREATE TRIGGER NoEditCertainTables ON DATABASE 
        FOR DROP_TABLE, ALTER_TABLE, CREATE_TABLE
    AS 
    
    SET CONCAT_NULL_YIELDS_NULL ON
    
    DECLARE @AffectedTable varchar(255) 
    SELECT  @AffectedTable = EVENTDATA().value('(/EVENT_INSTANCE/ObjectName)[1]','nvarchar(100)') 
    
    --This is the name of the table(s) you dont want messed with
    IF (@AffectedTable IN ('Table1','Table2','Table3'))
    BEGIN
        ROLLBACK;
    END 
    SET CONCAT_NULL_YIELDS_NULL OFF      
    
    GO
    
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