一般由于使用的方便建立存储过程的时候我们经常使用or replace 关键字,这样就会经常出现覆盖的情况
那么怎么解决呢?我们先介绍涉及技术的演示(基于时间点查询)
C:\>sqlplus /nolog
SQL*Plus: Release 11.2.0.1.0 Production on 星期一 2月 4 21:05:04 2013
Copyright (c) 1982, 2010, Oracle. All rights reserved.
SQL> conn /as sysdba;
已连接。
SQL> conn ywbz/ywbzwater
已连接。
SQL> create table t as select rownum rm from dual connect by rownum<10;
表已创建。
SQL> select * from t;
RM
----------
1
2
3
4
5
6
7
8
9
已选择9行。
SQL> set timing on
SQL> set time on
21:11:14 SQL>
21:11:25 SQL>
21:11:25 SQL> delete from t where rm<4;
已删除3行。
已用时间: 00: 00: 00.03
21:12:20 SQL> commit;
提交完成。
已用时间: 00: 00: 00.00
--除了是自己操作记下SCN(最准确)但是一般都是用户的误操作
21:12:22 SQL> select * from t as of timestamp sysdate-2/1440;
RM
----------
1
2
3
4
5
6
7
8
9
已选择9行。
已用时间: 00: 00: 00.04
21:14:20 SQL> select * from t as of timestamp sysdate-1/1440;
RM
----------
4
5
6
7
8
9
已选择6行。
已用时间: 00: 00: 00.02
21:14:41 SQL> conn /as sysdba;
已连接。
--注意此处无需开启归档
21:14:47 SQL> archive log list;
数据库日志模式 存档模式
自动存档 启用
存档终点 USE_DB_RECOVERY_FILE_DEST
最早的联机日志序列 399
下一个存档日志序列 401
当前日志序列 401
21:14:48 SQL>
具体演示
SQL> create or replace procedure find_proc as
2 begin
3 execute immediate 'select 1 from dual';
4 end;
5 /
Procedure created.
SQL> select * from dba_source where name='FIND_PROC';
OWNER NAME TYPE LINE TEXT
---------- ------------------------------ ------------ ---------- --------------------------------------------------
SYS FIND_PROC PROCEDURE 1 procedure FIND_PROC as
SYS FIND_PROC PROCEDURE 2 begin
SYS FIND_PROC PROCEDURE 3 execute immediate 'select 1 from dual';
SYS FIND_PROC PROCEDURE 4 end;
SQL> select current_scn from v$database;
CURRENT_SCN
-----------
1560098
create or replace procedure FIND_PROC as
begin
-- I am new procedure
execute immediate 'select 2 from dual';
end;
/
Procedure created.
SQL> select current_scn from v$database;
CURRENT_SCN
-----------
1660113
SQL> select * from dba_source where name='FIND_PROC';
OWNER NAME TYPE LINE TEXT
---------- ------------------------------ ------------ ---------- --------------------------------------------------
SYS FIND_PROC PROCEDURE 1 procedure find_proc as
SYS FIND_PROC PROCEDURE 2 begin
SYS FIND_PROC PROCEDURE 3 -- I am new procedure
SYS FIND_PROC PROCEDURE 4 execute immediate 'select 2 from dual';
SYS FIND_PROC PROCEDURE 5 end;
SQL> create table old_source as select * from dba_source as of scn 1560098 where name='FIND_PROC';
Table created.
SQL> select * from old_source where name='FIND_PROC';
OWNER NAME TYPE LINE TEXT
---------- ------------------------------ ------------ ---------- --------------------------------------------------
SYS FIND_PROC PROCEDURE 1 procedure find_proc as
SYS FIND_PROC PROCEDURE 2 begin
SYS FIND_PROC PROCEDURE 3 execute immediate 'select 1 from dual';
SYS FIND_PROC PROCEDURE 4 end;
怎么找到覆盖掉的存储过程---PROCEDURE
最新推荐文章于 2025-06-11 07:18:13 发布