ORA-25452: duplicate attribute value for variable: string, attribute: string
Cause: An attempt to evaluate was made, which failed because duplicate attribute values were supplied for the specified variable and attribute name.
Action: Check the attribute values specified, and try again with only one attribute value for each variable, and attribute name.
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ORA-25452错误是由于变量指定的属性重复,比如在用定义某个变量时,出现多次相同的属性值而造成的错误。
v VARCHAR2(30) := ‘hello’ VARIABLE v
`v`具有一个属性:类型。由于在定义`v`时,我们为该变量重复设置了类型属性,因此会抛出ORA-25452错误。
v VARCHAR2(30) := ‘hello’
这样就不会再出现ORA-25452错误。