Following are the main tables that are used for application profiling and diagnostic tracing. These tables are owned by the dbo user. For many of these tables, there exists a global shared temporary table with a similar name and schema. For example, the sa_diagnostic_blocking table has a global temporary table counterpart, sa_tmp_diagnostic_blocking table, which has the same schema. During a tracing session, diagnostic data is written to these temporary tables. Because temporary tables are not logged, they provide superior performance during a tracing session, where it is important to minimize the impact on the server.
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