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Microsoft® SQL Server™ 2000 DBA Survival Guide, Second Edition by Mark Spenik, Orryn Sledge

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Multiuser Configuration Options

SQL Server has several configuration options that allow you to tailor locking and other multiuser considerations. These options provide maximum control for multiuser access.

Transaction Isolation Level

With SQL Server, you can configure the transaction isolation level for a connection. A transaction isolation level remains in effect for the life of the connection unless the value is modified or the connection is broken.

To set the transaction isolation level, use the SET TRANSACTION ISOLATION LEVEL command, as in the following syntax. For an explanation of the differences among transaction isolation levels, see Tables 20.4 and 20.5.

 SET TRANSACTION ISOLATION LEVEL {READ COMMITTED | READ UNCOMMITTED | REPEATABLE ...

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