linux - 在 Oracle 触发器代码中使用 'exec'

Question

我尝试创建一个 Oracle 触发器，在插入或更新表后，触摸 Linux 主机中的一个文件。

所以我创建了一个这样的 shell 脚本:

#!/bin/bash
touch  /export/home/oracle/shell/a.txt

并修改权限:

chmod +x test1.sh

然后我使用系统登录 oracle 并创建一个这样的调度程序作业:

SQL>  exec DBMS_SCHEDULER.CREATE_JOB(job_name=>'test1',job_type=>'EXECUTABLE',job_action=>'/export/home/oracle/shell/test1.sh');
PL/SQL procedure successfully completed.

现在我想创建一个 Oracle 触发器并像这样调用这个调度程序作业:

CREATE OR REPLACE TRIGGER MY_OAM_LOG
 AFTER INSERT OR UPDATE ON OCS_CHARGE_OFF_AUTOMATION
 FOR EACH ROW 
BEGIN
 exec DBMS_SCHEDULER.RUN_JOB(job_name=>'test1');
END;
/

但是错误:

SQL> CREATE OR REPLACE TRIGGER MY_OAM_LOG
  2   AFTER INSERT OR UPDATE ON OCS_CHARGE_OFF_AUTOMATION
  3   FOR EACH ROW 
  4  BEGIN
  5   exec DBMS_SCHEDULER.RUN_JOB(job_name=>'test1');
  6  END;
  7  /

Warning: Trigger created with compilation errors.

SQL> show error
Errors for TRIGGER MY_OAM_LOG:

LINE/COL
--------------------------------------------------------------------------------
ERROR
--------------------------------------------------------------------------------
2/7
PLS-00103: Encountered the symbol "DBMS_SCHEDULER" when expecting one of the fol
lowing:

   := . ( @ % ;
The symbol ":=" was substituted for "DBMS_SCHEDULER" to continue.

我搜索了很多解决方案，但没有一个可行。我该如何处理？请问。

Answer 1

问题是您在 PL/SQL 触发器代码中使用 exec。 exec 是一个 SQL*Plus 命令。删除 exec 并且您的代码应该是好的:

CREATE OR REPLACE TRIGGER MY_OAM_LOG
 AFTER INSERT OR UPDATE ON OCS_CHARGE_OFF_AUTOMATION
 FOR EACH ROW 
BEGIN
  DBMS_SCHEDULER.RUN_JOB(job_name=>'test1');
END;
/

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来自 PL/SQL Command Reference :

EXECUTE

EXEC[UTE] statement

Executes a single PL/SQL statement. The EXECUTE command is often useful when you want to execute a PL/SQL statement that references a stored procedure.

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另见:

• How to execute an oracle stored procedure?