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Session 4: Data access operators in SQL Server: Scans, Seeks and Key/RID Lookup
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Let us quickly learn data access operators in SQL Server in this session.
Data access operators nearly exist in all the execution plans and you should deeply understand these operators as they can define performance issues in many cases.
Chapters
0:20 - Table Scan
1:45 - Non-clustered index-seek with RID lookup
3:55 - Non-clustered index scan, Non-clustered index seek without RID lookup
7:30 - Clustered index seek and scans
10:17 - Key lookup
Watch all my playlists here:
Data access operators nearly exist in all the execution plans and you should deeply understand these operators as they can define performance issues in many cases.
Chapters
0:20 - Table Scan
1:45 - Non-clustered index-seek with RID lookup
3:55 - Non-clustered index scan, Non-clustered index seek without RID lookup
7:30 - Clustered index seek and scans
10:17 - Key lookup
Watch all my playlists here:
Session 4: Data access operators in SQL Server: Scans, Seeks and Key/RID Lookup
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