PLS-00716: Attribute/method 'string' can occur only once in an ALTER TYPE statement

PLS-00716: Attribute/method 'string' can occur only once in an ALTER TYPE statement
Cause: User attempted more than one of ADD, DROP or MODIFY on an attribute in single ALTER TYPE statement. User attempted more than one of ADD or DROP on a method in single ALTER TYPE statement.
Action: Do only one ADD, DROP or MODIFY for an attribute in single ALTER TYPE statement. Do only one ADD or DROP for a method in single ALTER TYPE statement.

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小智 2018-08-30 19:02

PLS-00716：属性/方法' string '在ALTER TYPE语句中只能发生一次,
.原因：用户在单个ALTER TYPE语句中的属性上尝试使用ADD，DROP或MODIFY中的多个。用户在单个ALTER TYPE语句中的方法上尝试了多个ADD或DROP。,
.操作：在单个ALTER TYPE语句中仅对属性执行一个ADD，DROP或MODIFY。对于单个ALTER TYPE语句中的方法，只能使用一个ADD或DROP。,
.

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PLS-00716: Attribute/method 'string' can occur only once in an ALTER TYPE statement

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