oracle,Cannot SET AUTOTRACE解决问题 (只能在sql plus下执行)

1、SET AUTOTRACE参数

SET AUTOTRACE OFF ---------------- 不生成AUTOTRACE 报告，这是缺省模式

SET AUTOTRACE ON EXPLAIN ------ AUTOTRACE只显示优化器执行路径报告

SET AUTOTRACE ON STATISTICS -- 只显示执行统计信息

SET AUTOTRACE ON ----------------- 包含执行计划和统计信息

SET AUTOTRACE TRACEONLY ------ 同set autotrace on，但是不显示查询输出
2、只能在sql plus下执行
SQL> SET AUTOTRACE ON;

SQL> select count(*) from oz_member;
COUNT(*)

----------

472

执行计划

----------------------------------------------------------
-------------------------------------------------------

| Id | Operation | Name | Rows | Cost (%CPU)|

-------------------------------------------------------

| 0 | SELECT STATEMENT | | 1 | 1 (0)|

| 1 | SORT AGGREGATE | | 1 | |

| 2 | INDEX FULL SCAN| PK1_1 | 472 | 1 (0)|

-------------------------------------------------------
Note

-----

- 'PLAN_TABLE' is old version

统计信息

----------------------------------------------------------

193 recursive calls

0 db block gets

34 consistent gets

0 physical reads

0 redo size

409 bytes sent via SQL*Net to client

385 bytes received via SQL*Net from client

2 SQL*Net roundtrips to/from client

0 sorts (memory)

0 sorts (disk)

1 rows processed、