Tag: SGAM
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The Shared Global Allocation Map (SGAM)
Discover how SQL Server tracks mixed extents containing free pages using a Shared Global Allocation Map made up of one SGAM page per GAM Interval.
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From the sqlity.net blog
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How to identify the SQL Server Service Account in T-SQL
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How to Change a SQL Login’s Password
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Hash Algorithms – How does SQL Server store Passwords?
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How to Re-Create a Login with only a Hashed Password
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B+Trees – How SQL Server Indexes are Stored on Disk
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The Hidden SQL Server Gem: UPDATE from SELECT
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A Join A Day – Nested Joins
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Determine the Uptime of a SQL Server Instance
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A Join A Day – The Left Anti Semi Join
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Log Reuse Waits Explained: LOG_BACKUP
