Goldengate BATCHSQL
如果生产环境的Goldengate不需要实时同步的话，那么我们可以使用BATCHSQL这个参数进行批量同步，从而提高goldengate的性能
Valid for Replicat
Use the BATCHSQL parameter to increase the performance of Replicat. BATCHSQL causes
Replicat to organize similar SQL statements into arrays and apply them at an accelerated
rate. In its normal mode, Replicat applies one SQL statement at a time.
BATCHSQL is valid for:
● Oracle
● DB2 LUW
● DB2 on z/OS
● Teradata
● SQL Server
How BATCHSQL works
In BATCHSQL mode, Replicat organizes similar SQL statements into batches within a
memory queue, and then it applies each batch in one database operation. A batch contains
SQL statements that affect the same table, operation type (insert, update, or delete), and
column list. For example, each of the following is a batch:
● Inserts to table A
● Inserts to table B
● Updates to table A
● Updates to table B
● Deletes from table A
● Deletes from table B
For Example：
GGSCI (zbdba2) 4> view param rep1 REPLICAT rep1 ASSUMETARGETDEFS USERID ogg, PASSWORD ogg discardfile ./dirdat/rep1_discard.txt,append,megabytes 5 DDL INCLUDE MAPPED DDLOPTIONS REPORT BATCHSQL DBOPTIONS DEFERREFCONST DBOPTIONS LOBWRITESIZE 102400 HANDLECOLLISIONS DDLERROR DEFAULT DISCARD RETRYOP MAXRETRIES 5 RETRYDELAY 20 --grouptransops 1 --maxtransops 1 APPLYNOOPUPDATES MAP zbdba.*,TARGET zbdba.*;
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