2025-01-08
1,775 reads
Hash join
2024-12-11
1,194 reads
2024-11-27
429 reads
2024-11-13
525 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
Blogs
RANK() vs DENSE_RANK(): #SQLNewBlogger
By Steve Jones
I haven’t done one of these in awhile, but I saw an article recently...
Using CAT for Testing of Data Agents
In last months one of the scenarios where you can use AI has been...
Are you getting value from your reporting?
By ChrisJenkins
Do you spend so long manipulating your data into something vaguely useful that you...
Forums
Creating JSON II
Comments posted to this topic are about the item Creating JSON II
Engineer Lessons
Comments posted to this topic are about the item Engineer Lessons
Question of the Day
Creating JSON II
On SQL Server 2025, what happens when I run this code:
SELECT JSON_OBJECTAGG( N'City':N'Denver' RETURNING JSON) GOSee possible answers