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Tag Archives: current_scn
通过数据库链查询会导致源和目标库SCN同步
在通过数据库链执行跨数据库的查询时,Oracle会自动将两个数据库的SCN进行同步。 以前Eygle提到过这个问题,这次在讨论一个和远端数据库SCN有关的问题时,又碰到了这个问题,于是简单记录一下。 SQL> conn test/test@192.168.0.19:1666/ora102044 Connected. SQL> SELECT current_scn FROM v$database; CURRENT_SCN ———– 2745758 SQL> conn test/test@192.168.0.20:15210/orcl Connected. SQL> SELECT current_scn FROM v$database; CURRENT_SCN ———– 5642527 SQL> CREATE DATABASE link ora102044 2 CONNECT TO test 3 IDENTIFIED BY test 4 … Continue reading