1.开启10046事件
drop table TX1 purge; create table TX1 (x int); set linesize 266 set pagesize 5000 alter system flush shared_pool; alter system flush buffer_cache; alter session set events '10046 trace name context forever,level 12';
2.批量硬解析操作
begin for i in 1..100000 loop execute immediate 'insert into TX1 values ('||i||')'; end loop; commit; end; /
3.关闭10046事件
alter session set events '10046 trace name context off';
4.查看生成trace 文件
SQL> select tracefile from v$process where addr in (select paddr from v$session where sid in (select sid from v$mystat)); TRACEFILE -------------------------------------------------------------------------------- /oracle/D4C/diag/rdbms/d4cdb/D4C/trace/D4C_ora_10115.trc
5.通过tkpro 生成文件
[oracle@d4cdb trace]$ tkprof D4C_ora_10115.trc hardparasenosys.txt aggregate=yes sys=no waits=yes sort=fchela TKPROF: Release 19.0.0.0.0 - Development on Fri May 8 21:30:54 2020 Copyright (c) 1982, 2019, Oracle and/or its affiliates. All rights reserved. [oracle@d4cdb trace]$ ls -ltr hardparasenosys.txt -rw-r--r-- 1 oracle oinstall 3893 May 8 21:37 hardparasenosys.txt
5.查看tkpro 生成文件,可以看到由于没有绑定变量产生了很多PARSE.