ORA-39271: Cannot alter substitutability of column: string

ORA-39271: Cannot alter substitutability of column: string
Cause: DBMS_METADATA_DIFF was comparing two table columns. This error may occur because the first column is substitutable and the second column is not, or because the first column is OF TYPE and the second column is substitutable.
Action: The difference cannot be eliminated with an SQL ALTER statement.

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小智 2018-08-30 16:52

ORA-39271：无法更改column：string的可替换性,
.原因： DBMS_METADATA_DIFF正在比较两个表列。可能会发生此错误，因为第一列是可替换的，第二列不是，或者第一列是OF TYPE，第二列是可替换的。,
.操作：使用SQL ALTER语句无法消除该差异。,
.

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ORA-39271: Cannot alter substitutability of column: string

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