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

/* 创建测试用户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 以及测试表 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 以及接下去实验需要的权限 */

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 添加step ，可以一个一个的添加，也可以一下全部添加 */

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：首先执行 chain_step1,成功完成后执行 chain_step2 ,成功完成后执行 chain_step3,成功完成后，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;

/

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PL/SQL procedure successfully completed.

/* 启用链 tyger_chain */

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

PL/SQL procedure successfully completed.

手动运行链 tyger_chain

TYGER@ORCL>begin

DBMS_SCHEDULER.RUN_CHAIN (

chain_name =>'TYGER_CHAIN',

start_steps =>'CHAIN_STEP1');

end;

/

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PL/SQL procedure successfully completed.

/* 验证

是不是按照我们设计的规则 tab1 -> tab2 -> tab3 ->exit 完成的。 */

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>