故障定位
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编辑 删除
ORA-02287: sequence number not allowed here
ORA-02287ORA-02287: sequence number not allowed here[edit]What causes this error?An ORA-02287 occurs when you use a sequence where it is not allowed. The usage of a sequence is limited and it can be used only in few areas of PL/SQL and&...
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编辑 删除
ORA-02449: 表中的唯一/主键被外键引用
ORA-02449: 表中的唯一/主键被外键引用1.检查哪些表的外键引用了要删除的表的唯一/主键. select A.* from user_constraints A, user_constraints B WHERE b.table_name = 'MYTEST' and a.c...
