SQL> create or replace procedure sql_explain(v_sql varchar2,v_format varchar2) 2 is 3 type explain_cursor_type is ref cursor; 4 explain_cursor explain_cursor_type; 5 a varchar2(2048); 6 begin 7 execute immediate 'explain plan for '||v_sql; 8 open explain_cursor for select PLAN_TABLE_OUTPUT from table(dbms_xplan.display(null,null,v_format)); 9 loop 10 fetch explain_cursor into a; 11 exit when explain_cursor%NOTFOUND; 12 dbms_output.put_line(a); 13 end loop; 14 end; 15 / Procedure created. SQL> exec sql_explain('select a.name,b.name from t1 a,t2 b where a.id=b.id and a.id=1','all'); Plan hash value: 2680223496 -------------------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | -------------------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 1 | 17 | 4 (0)| 00:00:01 | | 1 | NESTED LOOPS | | 1 | 17 | 4 (0)| 00:00:01 | | 2 | TABLE ACCESS BY INDEX ROWID| T1 | 1 | 8 | 1 (0)| 00:00:01 | |* 3 | INDEX UNIQUE SCAN | T1_PK | 1 | | 0 (0)| 00:00:01 | |* 4 | TABLE ACCESS FULL | T2 | 1 | 9 | 3 (0)| 00:00:01 | -------------------------------------------------------------------------------------- Query Block Name / Object Alias (identified by operation id): ------------------------------------------------------------- 1 - SEL$1 2 - SEL$1 /A@SEL$1 3 - SEL$1 /A@SEL$1 4 - SEL$1 /B@SEL$1 Predicate Information (identified by operation id): --------------------------------------------------- 3 - access("A"."ID"=1) 4 - filter("B"."ID"=1) Column Projection Information (identified by operation id): ----------------------------------------------------------- 1 - (#keys=0) "A"."NAME"[VARCHAR2,32], "B"."NAME"[VARCHAR2,32] 2 - "A"."NAME"[VARCHAR2,32] 3 - "A".ROWID[ROWID,10] 4 - "B"."NAME"[VARCHAR2,32] PL/SQL procedure successfully completed. |