⟩ How To Use SQL*Plus Built-in Timers?
If you don't have a stopwatch/timer and want to measure elapsed periods of time, you can SQL*Plus Built-in Timers with the following commands:
* TIMING - Displays number of timers.
* TIMING START [name] - Starts a new timer with or without a name.
* TIMING SHOW [name] - Shows the current time of the named or not-named timer.
* TIMING STOP [name] - Stops the named or not-named timer.
The following tutorial exercise shows you a good example of using SQL*Plus built-in timers:
SQL> TIMING START timer_1
(some seconds later)
SQL> TIMING START timer_2
(some seconds later)
SQL> TIMING START timer_3
(some seconds later)
SQL> TIMING SHOW timer_1
timing for: timer_2
Elapsed: 00:00:19.43
(some seconds later)
SQL> TIMING STOP timer_2
timing for: timer_2
Elapsed: 00:00:36.32
SQL> TIMING
2 timing elements in use