对于oracle 数据库来说,OGG的抽取进程什么时候到database中获取数据?
参考原文:
When GoldenGate Fetches Data From The Database On Extraction For Oracle (Doc ID 1059583.1)
适用于:
Oracle GoldenGate - Version 4.0.0 and later
Information in this document applies to any platform.
解决方法:
问题:
什么触发了OGG的抽取进程到database中获取数据?
答案:
只有特定的数据类型才会导致从database中获取数据:
UDT 100% of the time GoldenGate fetches data from the database.
LONG,
LONG RAW,
CLOB,
BLOB Only if the row is chained. Otherwise, the data is captured from the redo log.
可以使用 STATOPTIONS REPORTFETCH 参数来跟踪抽取进程何时从database中获取数据
Key Words
Oracle , fetch , STATOPTIONS , REPORTFETCH , UDT , CLOB , BLOB , LOB , LONG
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时间: 2024-12-20 01:18:44