ORA-39285: Cannot alter index key compression.
Cause: DBMS_METADATA_DIFF was comparing two indexes with different values of key compression. There is no SQL ALTER statement to change index key compression.
Action: The difference cannot be eliminated with an SQL ALTER statement.
ORA-39285:不能更改索引键压缩。
1.重新检查您正在执行的更改索引命令,确保您是正确和有效地指定compression_spec子句。
2.释放该索引。
3.使用另一个记录命令重新创建索引,并按需修改压缩标准,然后重试更改索引操作。