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Are there any DDL triggers for SQL Server?
ALTER TRIGGER DDLTrigger_Sample ON DATABASE FOR CREATE_PROCEDURE, ALTER_PROCEDURE, DROP_PROCEDURE , ALTER_SCHEMA AS BEGIN — And how about rename? Unfortunately in SQL Server 2005, DDL Triggers were unable to observe calls to sp_rename (or manual renames through Management Studio).
How to prevent Lock escalation on a table?
Therefore, one method to prevent lock escalation on a particular table is to acquire and hold a lock on a different connection that is not compatible with the escalated lock type. An IX (intent exclusive) lock at the table level does not lock any rows or pages, but it is still not compatible with an escalated S (shared) or X (exclusive) TAB lock.
Is the DDL trigger visible to the user?
DDL Triggers will not be transparent to users – first of all, they can see them in the Object Explorer tree, so it won’t be a big secret that they are there and operational.
What causes a query to exceed the Lock escalation threshold?
This means that what may look like a SELECT statement at a “read-committed” isolation level might acquire many thousands of key locks (on both the clustered index and one nonclustered index). This can cause such a query to exceed the lock escalation thresholds.
What should I do if I get a DDL attack?
They include tightening down server access, adopting a reliable source control system, and implementing a rigorous and well-documented deployment process. These things do not happen overnight, so in the meantime, DDL Triggers can provide a short-term fix that is both easy to implement and simple to manage.
How to disable the DDL in SQL Server?
To disable it, you can run the following code: So now you can test the auditing capabilities by altering an existing procedure. Right-click a procedure in Object Explorer and choose Modify. Add the following line somewhere in the body: Then you can run a query against the DDLEvents table: