How do I find slow SQL statements in my
provides several views to find SQL with a long execution time:
- v$active_session_history: The
sysdate-sql_exec_start will find slow SQL statements
- v$sql: The elapsed_time
column shows slow execution time for current SQL statements
- stats$sqlstat: This shows slow SQL
if you install
- dba_hist_sqlstat : If you have
purchased the required extra cost packs, this table will collect
data on slow SQL statements over time.
Also see my notes on
SQL statements and scripts to find SQL with a
For pre-tested scripts to find slow SQL
statements, get the
Get the Complete
Oracle SQL Tuning Information
The landmark book
SQL Tuning The Definitive Reference" is
filled with valuable information on Oracle SQL Tuning.
This book includes scripts and tools to hypercharge Oracle 11g
performance and you can
for 30% off directly from the publisher.