You can control the report by setting the AUTOTRACE system variable.
SET AUTOTRACE OFF: No AUTOTRACE report is generated(This is the default).
SET AUTOTRACE ON EXPLAIN: The AUTOTRACE report shows only the optimizer execution path.
SET AUTOTRACE ON STATISTICS: The AUTOTRACE report shows only the SQL statement execution statistics.
SET AUTOTRACE ON: The AUTOTRACE report includes both the optimizer execution path and the SQL statement execution statistics.
SET AUTOTRACE TRACEONLY: Like SET AUTOTRACE ON, but suppresses the printing of the user's query output, if any.
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