oracle chain

[oracle@tyger dbs]$ sqlplus / as sysdba





SQL*Plus: Release 10.2.0.1.0 - Production on Tue May 6 13:02:41 2014





Copyright (c) 1982, 2005, Oracle.  All rights reserved.









Connected to:

Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production

With the Partitioning, OLAP and Data Mining options





/* 创建測试用户tyger 赋予权限 */





SYS@ORCL>drop user tyger cascade;





User dropped.





SYS@ORCL>create user tyger identified by tyger account unlock;





User created.





SYS@ORCL>grant connect,resource to tyger;





Grant succeeded.





SYS@ORCL>conn tyger/tyger

Connected.





/* 创建序列 seq_chain 以及測试表 tab1  tab2  tab3 */





TYGER@ORCL>create sequence seq_chain;





Sequence created.





TYGER@ORCL>create table tab1(id number(5),cdate date,sdate date default sysdate);





Table created.





TYGER@ORCL>create table tab2(id number(5),cdate date,sdate date default sysdate);





Table created.





TYGER@ORCL>create table tab3(id number(5),cdate date,sdate date default sysdate);





Table created.





/* 创建program 报错权限不足  */





TYGER@ORCL>begin

DBMS_SCHEDULER.CREATE_PROGRAM (

   program_name             => 'CHAIN_P1',

   program_type             => 'PLSQL_BLOCK',

   program_action           => 'begin

        execute immediate ''insert into tab1(id,cdate)

                values(seq_chain.nextval,add_months(sysdate,seq_chain.currval))'';

        end;',

   enabled                  => true);

end;

/

  2    3    4    5    6    7    8    9   10   11  

*

ERROR at line 1:

ORA-27486: insufficient privileges

ORA-06512: at "SYS.DBMS_ISCHED", line 5

ORA-06512: at "SYS.DBMS_SCHEDULER", line 30

ORA-06512: at line 2

 /* 赋予必要权限 以及接下去实验须要的权限 */

TYGER@ORCL>conn / as sysdba

Connected.

SYS@ORCL>grant create job to tyger;





Grant succeeded.





SYS@ORCL>grant create evaluation context to tyger;





Grant succeeded.





SYS@ORCL>grant create rule set to tyger;





Grant succeeded.





SYS@ORCL>grant create rule to tyger;





Grant succeeded.

/* 创建program  */

SYS@ORCL>conn tyger/tyger

Connected.



TYGER@ORCL>begin

DBMS_SCHEDULER.CREATE_PROGRAM (

   program_name             => 'CHAIN_P1',

   program_type             => 'PLSQL_BLOCK',

   program_action           => 'begin

        execute immediate ''insert into tab1(id,cdate)

                values(seq_chain.nextval,add_months(sysdate,seq_chain.currval))'';

        end;',

   enabled                  => true);

end;

/

  2    3    4    5    6    7    8    9   10   11  

PL/SQL procedure successfully completed.





TYGER@ORCL>begin

DBMS_SCHEDULER.CREATE_PROGRAM (

   program_name             => 'chain_step2',

   program_type             => 'PLSQL_BLOCK',

   program_action           => 'begin

        execute immediate ''insert into tab2(id,cdate)

                values(seq_chain.nextval,add_months(sysdate,seq_chain.currval))'';

        end;',

   enabled                  => true);

end;

/

  2    3    4    5    6    7    8    9   10   11  

PL/SQL procedure successfully completed.





TYGER@ORCL>begin

DBMS_SCHEDULER.CREATE_PROGRAM (

   program_name             => 'CHAIN_P3',

   program_type             => 'PLSQL_BLOCK',

   program_action           => 'begin

        execute immediate ''insert into tab3(id,cdate)

                values(seq_chain.nextval,add_months(sysdate,seq_chain.currval))'';

        end;',

   enabled                  => true);

end;

/

  2    3    4    5    6    7    8    9   10   11  

PL/SQL procedure successfully completed.









/* 创建链tyger_chain */





TYGER@ORCL>exec dbms_scheduler.create_chain('tyger_chain');





PL/SQL procedure successfully completed.





TYGER@ORCL>select chain_name from user_scheduler_chains;





CHAIN_NAME

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

TYGER_CHAIN









/* 创建chain step 

为链TYGER_CHAIN 加入step ，能够一个一个的加入，也能够一下所有加入 */

TYGER@ORCL>

TYGER@ORCL>begin 

dbms_scheduler.define_chain_step(

   chain_name =>'TYGER_CHAIN',

   step_name =>'CHAIN_STEP1',

   program_name => 'CHAIN_P1');

end;

/

  2    3    4    5    6    7  

PL/SQL procedure successfully completed.





TYGER@ORCL>begin

 dbms_scheduler.define_chain_step(

    chain_name =>'TYGER_CHAIN',

     step_name =>'CHAIN_STEP2',

     program_name => 'chain_step2');

 dbms_scheduler.define_chain_step(

    chain_name =>'TYGER_CHAIN',

     step_name =>'chain_step3',

    program_name => 'CHAIN_P3');

 end;

 /

  2    3    4    5    6    7    8    9   10   11  

PL/SQL procedure successfully completed.





/* 查看创建的step 是否成功 */





TYGER@ORCL>col chain_name for a16

TYGER@ORCL>col step_name for a16

TYGER@ORCL>col program_name for a16

TYGER@ORCL>select chain_name,step_name,program_name  

  2  from user_scheduler_chain_steps;





CHAIN_NAME       STEP_NAME        PROGRAM_NAME

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

TYGER_CHAIN CHAIN_STEP1 CHAIN_P1

TYGER_CHAIN CHAIN_STEP2 CHAIN_P2

TYGER_CHAIN CHAIN_STEP3 CHAIN_P3









/* 为链创建规则 */



/* 规则：首先运行 chain_step1,成功完毕后运行 chain_step2 ,成功完毕后运行 chain_step3,成功完毕后，结束。 */

TYGER@ORCL>

TYGER@ORCL>begin

DBMS_SCHEDULER.DEFINE_CHAIN_RULE (

   chain_name              => 'TYGER_CHAIN',

   condition               => 'true',

   action                  => 'start CHAIN_STEP1',

   rule_name               => 'rule_01');

DBMS_SCHEDULER.DEFINE_CHAIN_RULE (

   chain_name              => 'TYGER_CHAIN',

   condition               => 'CHAIN_STEP1 SUCCEEDED',

   action                  => 'start chain_step2',

   rule_name               => 'rule_02');

DBMS_SCHEDULER.DEFINE_CHAIN_RULE (

   chain_name              => 'TYGER_CHAIN',

   condition               => 'chain_step2 SUCCEEDED',

   action                  => 'start chain_step3',

   rule_name               => 'rule_03');

DBMS_SCHEDULER.DEFINE_CHAIN_RULE (

   chain_name              => 'TYGER_CHAIN',

   condition               => 'chain_step3 SUCCEEDED',

   action                  => 'END 0',

   rule_name               => 'rule_04');

END;

/

  2    3    4    5    6    7    8    9   10   11   12   13   14   15   16   17   18   19   20   21   22   23  

PL/SQL procedure successfully completed.





/* 启用链 tyger_chain */





TYGER@ORCL>exec dbms_scheduler.enable('TYGER_CHAIN');





PL/SQL procedure successfully completed.

手动执行链 tyger_chain

TYGER@ORCL>begin

DBMS_SCHEDULER.RUN_CHAIN (

   chain_name               =>'TYGER_CHAIN',

   start_steps              =>'CHAIN_STEP1');

end;

/

  2    3    4    5    6  

PL/SQL procedure successfully completed.





/* 验证

是不是依照我们设计的规则 tab1 -> tab2 -> tab3 ->exit 完毕的。

*/





TYGER@ORCL>alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss';





Session altered.





TYGER@ORCL>select * from tab1;





        ID CDATE               SDATE

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

         1 2014-06-06 13:14:24 2014-05-06 13:14:24





TYGER@ORCL>select * from tab2;





        ID CDATE               SDATE

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

         2 2014-07-06 13:14:25 2014-05-06 13:14:25





TYGER@ORCL>select * from tab3;





        ID CDATE               SDATE

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

         3 2014-08-06 13:14:25 2014-05-06 13:14:25





TYGER@ORCL>