Answer
SQL Server allocates memory for sorting, hashing, and aggregations.
Incorrect grants:
- Too small ? spills to TempDB
- Too large ? resource starvation
Quick Answer
Memory grants are pre-allocated memory for sort and hash operations in a query. SQL Server estimates how much memory is needed based on cardinality estimates. Grant too small → spill to TempDB (slow). Grant too large → other queries starved of memory. Fix by updating statistics for accurate row estimates.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ