AUTOTRACE
AUTOT[RACE] { OFF | ON | TRACE[ONLY]} [EXP[LAIN]] [STAT[ISTICS]]
Displays a report on the execution of successful SQL DML statements; can include execution statistics and the query execution path.
Does not display a trace report.
Displays a trace report.
Displays a trace report, but does not print query data, if any.
Shows the query execution path by performing an EXPLAIN PLAN.
Displays SQL statement statistics.