Oracle 如何从替换的过程（PL/SQL）中获取旧代码？

我有一个过程一直在工作，直到我错误地被其他代码替换。 因此，我的过程开始于

创建或替换过程xxx.yyy

，我错误地用一些简单的代码替换并保存了它

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因为我在我的程序中更换了，所以它被更换了，但是现在它不再按照我想要的方式工作了。如何获取该过程中的旧代码（替换前）？

当您连接到

xxx

schema时，请尝试使用：

select s.text 
  from user_source 
  as of timestamp systimestamp - interval '1' day s
 where s.name = 'YYY';

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获取过程的源代码。它为你提供了前一天的数据。您可以将

'1'天

转换为

'10'小时

，

'150'分钟

。。等等。根据您的需要，如果您的

db\u flashback\u retention\u目标

数据库参数已设置为足够大。

如果搜索期间有存档日志。您可以使用实用工具LogMiner。 例如：

   CREATE OR REPLACE PACKAGE BODY acs_ss2.rest_of_day is

    /*------------------------------------------------------------------*/
    procedure starting(p_date date) is
      rec_newrest   r_rest%rowtype;
      rec_oldrest   r_rest%rowtype;
      rec_rest      r_rest%rowtype;
      v_station   integer := 8902;
      v_dt1 date;
      v_dt2 date;
    begin
SQL CODE...

在事件发生时确定所需的日志文件

select name, first_time,  next_time
  from v$archived_log
where first_time >sysdate -3/24

/oracle/app/oracle/product/11.2/redolog/edcu/1_47429_769799469.dbf  22-ноя-2018 10:56:12    22-ноя-2018 12:13:48
/oracle/app/oracle/product/11.2/redolog/edcu/1_47430_769799469.dbf  22-ноя-2018 12:13:48    22-ноя-2018 13:17:06
/oracle/app/oracle/product/11.2/redolog/edcu/1_47431_769799469.dbf  22-ноя-2018 13:17:06    22-ноя-2018 13:39:38

运行logminer实用程序

EXECUTE DBMS_LOGMNR.add_logfile(LOGFILENAME => '/oracle/app/oracle/product/11.2/redolog/edcu/1_47429_769799469.dbf', OPTIONS => DBMS_LOGMNR.NEW); 
EXECUTE DBMS_LOGMNR.add_logfile(LOGFILENAME => '/oracle/app/oracle/product/11.2/redolog/edcu/1_47430_769799469.dbf', OPTIONS => DBMS_LOGMNR.addfile); 
EXECUTE DBMS_LOGMNR.add_logfile(LOGFILENAME => '/oracle/app/oracle/product/11.2/redolog/edcu/1_47431_769799469.dbf', OPTIONS => DBMS_LOGMNR.addfile); 

EXECUTE DBMS_LOGMNR.START_LOGMNR(OPTIONS => DBMS_LOGMNR.DICT_FROM_ONLINE_CATALOG);

运行SQL以恢复代码，请参阅SQL\u undo列

SELECT 
to_char(timestamp,'DD-MM-YYYY HH24:MI:SS'),
operation,  
sql_redo,
sql_undo
 FROM v$logmnr_contents
where 
seg_owner='SYS' and  
seg_name='SOURCE$'
==>
TO_CHAR(TIMESTAMP,'DD-MM-YYYYHH24:MI:SS')       OPERATION                              SQL_REDO                                                                                             SQL_UNDO                                                                                             
----------------------------------------------- -------------------------------------- ---------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------- 
22-11-2018 13:39:14                             DELETE                                 delete from "SYS"."SOURCE$" where "OBJ#" = '197353' and "LINE" = '1' and "SOURCE" = 'package body re insert into "SYS"."SOURCE$"("OBJ#","LINE","SOURCE") values ('197353','1','package body rest_of_day i 
22-11-2018 13:39:14                             DELETE                                 delete from "SYS"."SOURCE$" where "OBJ#" = '197353' and "LINE" = '2' and "SOURCE" = '
' and ROWID =  insert into "SYS"."SOURCE$"("OBJ#","LINE","SOURCE") values ('197353','2','
');                       
22-11-2018 13:39:14                             DELETE                                 delete from "SYS"."SOURCE$" where "OBJ#" = '197353' and "LINE" = '3' and "SOURCE" = '/*------------- insert into "SYS"."SOURCE$"("OBJ#","LINE","SOURCE") values ('197353','3','/*------------------------ 
22-11-2018 13:39:14                             DELETE                                 delete from "SYS"."SOURCE$" where "OBJ#" = '197353' and "LINE" = '4' and "SOURCE" = 'procedure start insert into "SYS"."SOURCE$"("OBJ#","LINE","SOURCE") values ('197353','4','procedure starting(p_date  
22-11-2018 13:39:14                             DELETE                                 delete from "SYS"."SOURCE$" where "OBJ#" = '197353' and "LINE" = '5' and "SOURCE" = '  rec_newrest r insert into "SYS"."SOURCE$"("OBJ#","LINE","SOURCE") values ('197353','5','  rec_newrest r_rest%rowty 

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备份或从版本控制（Git/SVN）获取代码（如果有的话）。Hi@Lukasz，我没有，但它在我的模式下，不知道是否有其他方法？？我猜您没有启用任何DDL审核或系统级触发器来捕获DDL更改。我建议搜索备份，或者尝试在不同的环境（如QA/DEV/）上检查这一点，所以教学内容是：对代码使用源代码控制。