文档解释
ORA-39311: Cannot alter tablespace blocksize.
Cause: DBMS_METADATA_DIFF was comparing two tablespaces with different blocksizes. There is no SQL ALTER statement to change the blocksize of a tablespace.
Action: The difference cannot be eliminated with an SQL ALTER statement.
ORA-39311：不能更改表空间块大小。
官方解释
常见案例
一般处理方法及步骤
1、查看块大小是否已经更新：用 SELECT BLOCKSIZE FROM DBA_DATA_FILES;
2、若不存在，则需要重建表空间，存储更新后的块大小：DROP TABLESPACE 某表空间名;
CREATE TABLESPACE 某表空间名 DATAFILE ‘路径及文件名’ SIZE 尺寸
BLOCKSIZE 块大小 EXTENT MANAGEMENT LOCAL AUTOALLOCATE SEGMENT SPACE MANAGEMENT
AUTO;
3、当表空间重建完成后，查看一下：SELECT BLOCKSIZE FROM DBA_DATA_FILES;
希望上述步骤能够帮助用户解决更改表空间块大小失败的问题。
