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SQLHC of Oracle SQL tuning

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Author: User
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  • SQL execution is slow, how fast and accurate optimization.
    • SQLHC is one of the best tools.
    • By getting all the SQL execution plans, list the actual performance bottlenecks, listing the number of rows on the table where SQL resides, the data and distribution of each column, the existing index, the actual execution of SQL-time, IO, and the number of rows returned.

  • Specific use of reference Document 1366133.1 SQL Tuning health-check Script (SQLHC)

  • Simple steps:
    • Free Download from Oracle
    • Get Sqlid from AWR
    • Then run SQLHC and follow the prompts to enter Sqlid

SQLHC of Oracle SQL tuning

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