2025-07-16
482 reads
T-SQL
DISTINCT and UNION: What happens when you use them together?
When I was perusing my LinkedIn feed the other day, I came across this thread about using SELECT *. In one of the replies, Aaron Cutshall noted that: “Another real performance killer is SELECT DISTINCT especially when combined with UNION. I have a whole list of commonly used hidden performance killers!”
2025-07-04
2025-06-27
391 reads
2025-06-20
536 reads
2025-06-18
905 reads
2025-06-16
845 reads
2025-06-13
854 reads
2025-06-11
1,405 reads
Techniques to query Azure SQL’s new JSON Datatype
The new JSON field type and new functions in Azure SQL brings a new world of possibilities for JSON manipulation in SQL Databases. These features are slated to be a part of SQL Server 2025 as well. Let’s analyze some practical uses of these features
2025-06-09
2025-06-09
1,308 reads
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Hyperscale Replicas II
Comments posted to this topic are about the item Hyperscale Replicas II
Question of the Day
Hyperscale Replicas II
How many Azure SQL DB Hyperscale HA replicas can be configured as of Sept 2026?
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