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SQL SERVER – Disable Index – Enable Index – ALTER Index
When DTS, BCP or BULK INSERT needs an index out of the way, I prefer to disable index with ALTER INDEX and enable it again with REBUILD. AdventureWorks example.
SQL SERVER – Fix : Error 1205 : Transaction (Process ID) was deadlocked on resources with another process and has been chosen as the deadlock victim. Rerun the transaction
Fix : Error 1205 : Transaction (Process ID) was deadlocked on resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
SQL SERVER – Fix: Error 130: Cannot perform an aggregate function on an expression containing an aggregate or a subquery
Error 130 says you cannot perform an aggregate function on an expression containing an aggregate, like AVG(COUNT()). A derived table gets around it.
SQL SERVER – Binary Sequence Generator – Truth Table Generator
A script that builds a 512 row truth table with its decimal value and binary sequence, using CROSS JOINs on a bit table. Add or remove joins to resize it.
SQL SERVER – DBCC commands List – documented and undocumented
The full list of documented and undocumented DBCC commands with their syntax, plus how DBCC TRACEON(2520) and DBCC HELP show all of them in Query Analyzer.
Last Line of a SQL Script: The Joke Every DBA Has Lived
The last line of a SQL script decides whether your work is saved, rolled back, or still holding locks. Here are the classic endings and how to check them.