document
用法
explain plan for select ho.RET_ORDER_ID from HTL_ORDER ho;
select plan_table_output from TABLE(DBMS_XPLAN.DISPLAY('PLAN_TABLE'));
document
用法
explain plan for select ho.RET_ORDER_ID from HTL_ORDER ho;
select plan_table_output from TABLE(DBMS_XPLAN.DISPLAY('PLAN_TABLE'));