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01 – How NOLOCK Can Show Incorrect Results (10m)

You might have heard that using NOLOCK in your queries gets you dirty reads – but what does that mean, exactly? Watch as a simple COUNT(*) query produces wildly different results when NOLOCK is used. Demo script: Transact-SQL /* How NOLOCK Can Show Incorrect Results v1.2 – 2019-07-31 Performance Tuning in 21 Demos: https://www.brentozar.com/go/21demos This…

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You might have heard that using NOLOCK in your queries gets you dirty reads – but what does that mean, exactly? Watch as a simple COUNT(*) query produces wildly different results when NOLOCK is used. Demo script: Transact-SQL /* How NOLOCK Can Show Incorrect Results v1.2 – 2019-07-31 Performance Tuning in 21 Demos: https://www.brentozar.com/go/21demos This…

To access this incredible, amazing content, you gotta get Recorded Class Season Pass, or log in if you already shelled out the cash.