這是我們使用的客戶端工具 Pl/Sql developer 和數據庫的cdc產生衝突，如果使用TOAD等其他客戶端工具則不會有這種情況。
還需要大家在開發中留意：
1，用Pl/Sql developer是否還會發生編譯不過的情況。
2，是否會導致其他問題。
謝謝！
解決方法爲：去掉cdc功能。
操作爲：
DROP TRIGGER sys.cdc_alter_ctable_before;
DROP TRIGGER sys.cdc_create_ctable_after;
DROP TRIGGER sys.cdc_create_ctable_before ;
DROP TRIGGER sys.cdc_drop_ctable_before;
CALL sys.dbms_java.dropjava('-s rdbms/jlib/CDC.jar');
這是oracle的信息：
ORA-03114 not connected to ORACLE
Cause: A call to Oracle was attempted when no connection was established. Usually this happens because a user-written program has not logged on. It may happen if communication trouble causes a disconnection. In addition, this mesSage could occur when ALTER SYSTEM KILL SESSION or ALTER SYSTEM DISCONNECT SESSION were issued with the IMMEDIATE qualifier because, in those cases, the client's connection to the database is terminated without waiting for the client to issue a request.
Action: Try again. If the message recurs and the program is user written, check the program.