February 2010
Intermediate to advanced
512 pages
9h 44m
English
Content preview from Oracle Database 11g PL/SQL Programming WorkbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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APPENDIX BPL/SQL Hierarchical Profiler
Oracle 11 g introduced the PL/SQL hierarchical profiler, which lets you capture the dynamic execution performance of your PL/SQL programs. It divides PL/SQL execution times into two parts: SQL statement and PL/SQL program unit execution times.
A hierarchical profiler provides you with more insight than a non-hierarchical profiler. A nonhierarchical profiler reports only how much time a module consumed. A hierarchical profile tells you which program called what subroutine, and how many times the subroutine was called. The PL/SQL hierarchical profiler stores results in a set of hierarchical profiler tables. It divides the data by subprogram units, including the relationship between calling and called subroutines, ...
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