This kills performance:
SELECT * FROM Orders
đź§ Why
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Forces key lookups
-
Breaks covering indexes
âś… Fix
Select only what you need:
SELECT Id, Total FROM Orders
Daily micro-tips for C#, SQL, performance, and scalable backend engineering.
This kills performance:
SELECT * FROM Orders
Forces key lookups
Breaks covering indexes
Select only what you need:
SELECT Id, Total FROM Orders