Vinay Thakur

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Transaction isolation level

Transaction isolation level:1. Uncommitted Read (NoLock)2. Committed Read (blocking)3. Repeatable Read (phantom)4. Snapshot  (no blocking)5. Serializable (no blocking)Dirty Read:(DR)Non Repeatable Read:(NRR)Phantom:(P)Great...

2009-05-19

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Question of the Day

BIT_COUNT() III

In SQL Server 2025, I run this code: 

select bit_count(-1)
What is returned?

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