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PLS-00221: 'string' is not a procedure or is undefined

PLS-00221: 'string' is not a procedure or is undefined
Cause: An identifier being referenced as a procedure was not declared or actually represents another object (for example, it might have been declared as a function).
Action: Check the spelling and declaration of the identifier. Also confirm that the declaration is placed correctly in the block structure.

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小智
PLS-00221:' string '不是一个过程或未定义,
.原因:作为过程引用的标识符未声明或实际表示另一个对象(例如,它可能已被声明为函数)。,
.操作:检查标识符的拼写和声明。同时确认声明在块结构中正确放置。,
.
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