veridata实验例（5）在更改主键列值，update操作将被分成两个语句

veridata实验例（5）更改主键列值，update操作将被分成两个语句

续接“veridata实验举例（4）验证veridata查找出updata、delete操作导致的不同步现象”。地址：点击打开链接

环境：

Item	Source System	Target System
Platform	Red Hat Enterprise Linux Server release 5.4	Red Hat Enterprise Linux Server release 5.4
Hostname	gc1	gc2
Database	Oracle 10.2.0.1	Oracle 11.2.0.1
Character Set	ZHS16GBK	ZHS16GBK
ORACLE_SID	PROD	EMREP
Listener Name/Port	LISTENER/1521	LISTENER/1521
Goldengate User	ogg	ogg

1、模拟实验环境，使gc1、gc2数据不同步，对gc2上主键列作update操作

GGSCI(gc1) 7> stop RORA_1

Sending STOP request to REPLICAT RORA_1 ...

Request processed.

GGSCI(gc1) 8> info all

Program Status Group Lag Time Since Chkpt

MANAGER RUNNING

EXTRACT RUNNING EORA_1 00:00:00 00:00:01

EXTRACT RUNNING PORA_1 00:00:00 00:00:05

REPLICAT STOPPED RORA_1 00:00:00 00:00:01

gc2：

SQL>update TCUSTMER set CUST_CODE='NEW' WHERENAME='ROCKY FLYER INC.'; --gc2上updata操作

SQL>commit;

SQL>select * from TCUSTMER where CUST_CODE='NEW';

CUST_CODE NAME CITY ST

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

NEW ROCKY FLYER INC. SHANGHAI CO

gc1：

SQL>select * from TCUSTMER where CUST_CODE='NEW'; --gc1查询。没有同步更改，查询不到

no rows selected

SQL>select * from TCUSTMER where CUST_CODE='JANE'; --gc1上保留的依旧是原数据

CUST_CODE NAME CITY ST

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

JANE ROCKY FLYER INC. SHANGHAI CO

2、执行veridata显示结果，例如以下：

--veridata捕捉到的不是update操作，而是将其拆分成了insert操作、delete操作

小结：

由上可知，当update主键所在的列时，veridata无法捕获出这是update操作。而是通过对照两张表。将update操作拆分成insert操作、delete操作。

3、处理同步

GGSCI(gc1) 10> start RORA_1

Sending START request to MANAGER ...

REPLICAT RORA_1 starting

GGSCI(gc1) 11> info all

Program Status Group Lag Time Since Chkpt

MANAGER RUNNING

EXTRACT RUNNING EORA_1 00:00:00 00:00:02

EXTRACT RUNNING PORA_1 00:00:00 00:00:00

REPLICAT RUNNING RORA_1 00:12:48 00:00:02

SQL> select * from TCUSTMER where CUST_CODE='NEW';

CUST_CODE NAME CITY ST

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

NEW ROCKY FLYER INC. SHANGHAI CO

********************未完待续**************************

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