How Can I Stop a SQL Server Script's Execution Mid-Process?

Interrupting SQL Script Execution in SQL Server

Large or complex SQL scripts sometimes require immediate termination if unexpected conditions arise. SQL Server offers several ways to accomplish this.

Using raiserror

The raiserror statement abruptly ends script execution by triggering a critical error. A severity level of 20 or greater, combined with the WITH LOG option, is necessary:

<code class="language-sql">raiserror('Critical error encountered', 20, -1) with log</code>

This action closes the database connection, halting further script processing.

Employing noexec

The noexec command sets a flag, preventing the execution of subsequent statements. Unlike raiserror, it doesn't terminate the connection; execution resumes only after noexec is deactivated:

<code class="language-sql">print 'Initial message'
go

print 'Error detected; script halted!'
set noexec on

print 'This message will not be displayed.'
go

-- End of script
set noexec off -- Execution resumes here</code>

Important Notes:

• raiserror demands administrative permissions and disconnects the database.
• noexec only affects the current session without disconnecting.
• Both methods function correctly with GO batch separators.

The best method depends on the specific needs and context of your SQL script.

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