ORA-41695: equal specification should have a minimum of two elements

文档解释

ORA-41695: equal specification should have a minimum of two elements

Cause: An attempt was made to specify fewer than two elements in the equal clause for a rule condition or the rule class properties.

Action: Correct the input and try again.

ORA-41695: equal specification should have a minimum of two elements 是 Oracle 错误代码,它表明在给定的语法中,如果使用 EQUAL 来指定对象时,应该将至少两个具体元素包括进去。

官方解释

常见案例

一般处理方法及步骤

1. 检测是否使用了 EQUAL 运算符;

2. 检查 EQUAL 是否只用了一个元素;

3. 检查元素的类型是否相同;

4. 确保 EQUAL 运算符右边至少有一个元素;

5. 确保指定的元素之间类型完全相等。

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