Please note that the global variable cannot be dropped if it is referenced in a function, method, trigger or view.

请注意，如果函数、方法、触发器或视图中引用了某个全局变量，则不能删除该变量。

youdao

Please note that the global variable cannot be dropped if it is referenced in a function, method, trigger or view.

请注意，如果函数、方法、触发器或视图中引用了某个全局变量，则不能删除该变量。

youdao