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Hash join
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2024-11-27
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2024-11-13
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Hash Join Memory Grant Factors
Remember when that old DBA told you not to SELECT *? Erik Darling explains why.
2018-04-26
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Hash Joins on Nullable Columns
Paul White explores some less well-known query optimizer features and limitations, and explains the reasons for extremely poor hash join performance in a specific case.
2015-11-16
3,593 reads
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UNISTR Escape
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Question of the Day
UNISTR Escape
In SQL Server 2025, I run this command:
SELECT UNISTR('*3041*308A*304C\3068 and good night', '*') as "A Classic";
What is returned? (assume the database has an appropriate collation)
A: 
B: 
C: 
See possible answers