May 2019
Intermediate to advanced
484 pages
11h 23m
English
Content preview from Learn T-SQL Querying
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TraceFlags
TraceFlags can expand to show additional information on trace flags present during compilation and execution. Trace flags may change the behavior of SQL Server during query compilation and optimization, during query execution, or both. Therefore, during any query performance troubleshooting exercise, it's important to know which trace flags were influencing a given query at any stage.
Under the TraceFlags property, there are two lists that can be expanded:
- [1] IsCompileTime|True: This returns a list of all the trace flags active in the system when the query was undergoing the process of compilation and optimization
- [2] IsCompileTime|False*: This returns a list of all the trace flags active in the system when the query was being ...
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