ORA-04091: table xxx is mutating, trigger/function may not see it

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ORA-04091: table xxx is mutating, trigger/function may not see it

Connected to Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 Connected as tbcs SQL> SQL> SQL> drop trigger tbcs.TRG_CJW_TEST; drop trigger tbcs.TRG_CJW_TEST ORA-04080: trigger 'TRG_CJW_TEST' does not exist SQL> drop table tbcs.cjw_te…

ORA-04091: table xxxx is mutating, trigger/function may not see it

今天同事让我看一个触发器为什么老是报错,当执行DML语句触发触发器后,会报ORA-04091错误:ORA-04091: table xxxx is mutating, trigger/function may not see it .对应的中文错误提示为:ORA-04091: 表 xxx发生了变化, 触发器/函数不能读它. 原因分析: [oracle@DB-Server ~]$ oerr ora 409104091, 00000, "table %s.%s is mutating, trigge…

ORA-04091: table is mutating, trigger/function may not see it

今天在论坛里发现了一个关于ORA-04091的老帖子,收获良多,特此整理一下关于ORA-04091: table is mutating, trigger/function may not see it的分析当DML操作触发trigger的时候,如果trigger的程序块中需要对当前表进行修改或查询的时候,就会报错ORA-04091: table is mutating, trigger/function may not see it 这是有在被触发TRIGGER工作的时候,默认把当前表表锁…

错误"ORA-04091: table is mutating, trigger/function may not see it"的原因以及解决办法

错误的原因该错误是在编写trigger时常遇到的问题,其根本原因是由于对本表的操作造成的.对于使用了for each row 的触发器,做了DML操作(delete,update,insert),还没有提交时,是不允许其他PL/SQL对本表的DML操作,以及查询,因为此时数据不一致. 解决办法: 1 自治事务自治事物的概念:就是在subprogram里进行事物的提交不影响主程序的事务,同样主程序的提交或回滚都不影响子程序的commit,即子程序的事物和主程序的事物完全独立.示例: CREATE…

Can’t update table ‘xxx’ in stored function/trigger because it is already used by statement which invoked this stored function/trigger

MySQL: Solution for ERROR 1442 (HY000): Can't update table 'xxx' in stored function/trigger because it is already used by statement which invoked this stored function/trigger. 今天在做触发器时发生了这个错误原因是在对某表操作时同时触发对该表插入估计这在mysql不允许的不可以把触发条件和触发动作归于一表…