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Managing Transaction Logs in SQL Server

The Transaction Log provides the means by which either the complete set of tasks of a database transaction are performed or none of them are. It ensures that , via rollback, only valid data is written out to the database, and it allows transactions to be played back to recreate the system state right before a failure. Robert Sheldon explains the various basic tasks involved in managing the transaction log.

2009-11-23

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BIT_COUNT() IV

In SQL Server 2025, I run this code:

select bit_count('A')
What is returned?

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