文档解释
ORA-31506: duplicate subscription name string
Cause: A subscription by the specifed name already exists.
Action: Recreate the subscription with a unique name.
ORA-31506: duplicate subscription name string错误表明当前处理操作中,订阅名称字符串重复。
官方解释
ORA-31506 is raised when an attempt is made to create a subscription for an event that specifies a subscription name that already exists for the same event.
常见案例
假设表t1中的一列定义为date ,每次向表t1中添加一行值时,应触发事件通知,该事件通知定义如下:
CREATE OR REPLACE EVENT “EVENT1”
AFTER INSERT ON t1
REFERENCING NEW AS newrow
FOR EACH ROW
BEGIN
insert into table1 (datecolumn) values (newrow.date);
END;
一般处理方法及步骤
1、检查是否存在重复的订阅名称。
2、确保每个事件的订阅名称唯一。
3、重命名当前订阅,或者删除旧订阅并添加新订阅。