2025-01-08
1,780 reads
Hash join
2024-12-11
1,201 reads
2024-11-27
435 reads
2024-11-13
528 reads
Hash Join Memory Grant Factors
Remember when that old DBA told you not to SELECT *? Erik Darling explains why.
2018-04-26
2,943 reads
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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PostgreSQL Support in the Data API Builder
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Next week I’m at VS Live in San Diego (register and join me) and...
Ten Years of PowerShell
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T-SQL Tuesday #202: 100 Hours
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It’s time for T-SQL Tuesday again and this is a great prompt to start...
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Stored Procedures for Server-Level Object and Column Search
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Databricks Genie Spaces for SQL Analysts: Natural Language Querying Without Leaving Your Data Platform
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The Costs of Multiple Platforms
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Question of the Day
RegEx Functions II
I have this data in a table in a SQL Server 2025 database:
EmailAddressID EmailAddress 7 dylan0@ADVENTURE-WORKS.COM 8 Diane1@ADVENTURE-WORKS.COMIf I run this query, which row(s) are returned?
SELECT top 10 * FROM person.EmailAddress WHERE REGEXP_LIKE(EmailAddress, '^d') AND BusinessEntityID IN (7,8)See possible answers