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ORA-02438: Column check constraint cannot reference other columns ORACLE 报错 故障修复 远程处理

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ORA-02438: Column check constraint cannot reference other columns ORACLE 报错 故障修复 远程处理

文档解释

ORA-02438: Column check constraint cannot reference other columns

Cause: attempted to define a column check constraint that references another column.

Action: define it as a table check constriant.

ORA-02438: Column check constraint cannot reference other columns 说明在定义一个既有表的check约束时,该约束中引用了此表中的另一列数据,而check约束不能如此定义。

官方解释

常见案例

1. 尝试创建Check约束时引用另一列

2. Get_Constraint 存储过程调用时引用另一列

正常处理方法及步骤

1. 不要定义Check约束引用另一列,只能对具体的值进行约束,而不能引用其他列。

2. 如果Get_Constraint存储过程调用时引用另外一列,可以把另外一列替换为值,或者使用函数来比较该列中的值。

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ORA-02438: Column check constraint cannot reference other columns ORACLE 报错 故障修复 远程处理

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