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Script: explain.sql
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-- ----------------------------------------------------------------------------------- -- File Name : https://oracle-base.com/dba/monitoring/explain.sql -- Author : Tim Hall -- Description : Displays a tree-style execution plan of the specified statement after it has been explained. -- Requirements : Access to the plan table. -- Call Syntax : @explain (statement-id) -- Last Modified: 15-JUL-2000 -- ----------------------------------------------------------------------------------- SET PAGESIZE 100 SET LINESIZE 200 SET VERIFY OFF COLUMN plan FORMAT A50 COLUMN object_name FORMAT A30 COLUMN object_type FORMAT A15 COLUMN bytes FORMAT 9999999999 COLUMN cost FORMAT 9999999 COLUMN partition_start FORMAT A20 COLUMN partition_stop FORMAT A20 SELECT LPAD(' ', 2 * (level - 1)) || DECODE (level,1,NULL,level-1 || '.' || pt.position || ' ') || INITCAP(pt.operation) || DECODE(pt.options,NULL,'',' (' || INITCAP(pt.options) || ')') plan, pt.object_name, pt.object_type, pt.bytes, pt.cost, pt.partition_start, pt.partition_stop FROM plan_table pt START WITH pt.id = 0 AND pt.statement_id = '&1' CONNECT BY PRIOR pt.id = pt.parent_id AND pt.statement_id = '&1';