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  • oracle 分区表(子分区)收缩笔记

    思路
    1.首先移动子分区到别的表空间。
    2.收缩数据文件。
    3.再把子分区移回原表空间。

    ---------------------------------------------生成发送报告移动子分区语句---------------------------------------------

    select 'alter table '||TABLE_NAME||' move subpartition '||SUBPARTITION_NAME||' tablespace SMART_NRRPSTA01;' from dba_tab_subpartitions
    where table_name = 'S_T_RTNRP_STATUS'
    AND PARTITION_NAME LIKE 'ST_RRPS_12%'
    ORDER BY SUBPARTITION_NAME

    select 'alter table '||TABLE_NAME||' move subpartition '||SUBPARTITION_NAME||' tablespace SMART_NSNRP01;' from dba_tab_subpartitions
    where table_name = 'S_T_SEND_REPORT'
    AND PARTITION_NAME LIKE 'ST_SNDRP_12%'
    ORDER BY SUBPARTITION_NAME

    --------------------------------------------生成返回报告移动子分区语句---------------------------------------------

    select 'alter table '||TABLE_NAME||' move subpartition '||SUBPARTITION_NAME||' tablespace SMART;' from dba_tab_subpartitions
    where table_name = 'S_T_RTNRP_STATUS'
    AND PARTITION_NAME LIKE 'ST_RRPS_01%'
    ORDER BY SUBPARTITION_NAME

    select 'alter table '||TABLE_NAME||' move subpartition '||SUBPARTITION_NAME||' tablespace SMART_NRRPSTA01;' from dba_tab_subpartitions
    where table_name = 'S_T_RTNRP_STATUS'
    AND PARTITION_NAME LIKE 'ST_RRPS_01%'
    ORDER BY SUBPARTITION_NAME

    --------------------------------查看数据文件号---------------------------------------

    select TABLESPACE_NAME,FILE_ID,FILE_NAME FROM DBA_DATA_FILES
    WHERE TABLESPACE_NAME = 'SMART_NSNRP01'


    select TABLESPACE_NAME,FILE_ID,FILE_NAME FROM DBA_DATA_FILES
    WHERE TABLESPACE_NAME = 'SMART_NRRPSTA01'

    --------------------------------查看数据块最大id值---------------------------------

    show parameter db_block_size 查看db_block_size的值

    select TABLESPACE_NAME,file_id,max(block_id),max(block_id)*16/1024 from dba_extents where file_id in(99,100,101)
    group by TABLESPACE_NAME,file_id

    --------------------------------回收发送报告数据文件空间----------------------------------------
    ALTER DATABASE DATAFILE '+DATA/db75/datafile/smart_nsnrp02_01.dbf' RESIZE 2000M;
    ALTER DATABASE DATAFILE '+DATA/db75/datafile/smart_nsnrp02_02.dbf' RESIZE 2000M;
    ALTER DATABASE DATAFILE '+DATA/db75/datafile/smart_nsnrp02_03.dbf' RESIZE 2000M;
    ALTER DATABASE DATAFILE '+DATA/db75/datafile/smart_nsnrp02_04.dbf' RESIZE 2000M;
    ALTER DATABASE DATAFILE '+DATA/db75/datafile/smart_nsnrp02_05.dbf' RESIZE 2000M;
    ALTER DATABASE DATAFILE '+DATA/db75/datafile/smart_nsnrp02_06.dbf' RESIZE 2000M;
    ALTER DATABASE DATAFILE '+DATA/db75/datafile/smart_nsnrp02_07.dbf' RESIZE 2000M;


    --------------------------------回收返回报告数据文件空间----------------------------------------
    ALTER DATABASE DATAFILE '+DATA/oracledata3/returnreport/smart_nrrpsta02_01.dbf' RESIZE 2000M;
    ALTER DATABASE DATAFILE '+DATA/oracledata3/returnreport/smart_nrrpsta02_02.dbf' RESIZE 2000M;
    ALTER DATABASE DATAFILE '+DATA/oracledata3/returnreport/smart_nrrpsta02_03.dbf' RESIZE 2000M;
    ALTER DATABASE DATAFILE '+DATA/oracledata3/returnreport/smart_nrrpsta02_04.dbf' RESIZE 2000M;


    --------------------------------查看磁盘组空间使用情况命令--------------------------------------
    grid用户执行

    sqlplus / as sysasm

    select group_number,name,total_mb,free_mb from v$asm_diskgroup;

    select 'alter table '||TABLE_NAME||' drop partition '||PARTITION_NAME||';' from dba_tab_partitions
    where table_name = 'S_OPERATELOG'
    AND PARTITION_NAME LIKE 'OPLOG_1701%'
    ORDER BY PARTITION_NAME


    select 'alter table '||TABLE_NAME||' drop partition '||PARTITION_NAME||'tablespace SMART;' from dba_tab_partitions
    where table_name = 'S_SENDBACKUPQUEUE'
    AND PARTITION_NAME LIKE 'SENDBAK_1701%'
    ORDER BY PARTITION_NAME


    ------------------------------------------------扣费日志------------------------------------
    alter database datafile '+DATA/oracledata1/smart_oplog01_01.dbf' resize 1024M;
    alter database datafile '+DATA/oracledata1/smart_oplog01_02.dbf' resize 1024M;
    alter database datafile '+DATA/oracledata1/smart_oplog01_03.dbf' resize 1024M;
    alter database datafile '+DATA/oracledata1/smart_oplog01_04.dbf' resize 1024M;
    alter database datafile '+DATA/oracledata1/smart_oplog01_05.dbf' resize 1024M;
    alter database datafile '+DATA/oracledata1/smart_oplog01_06.dbf' resize 1024M;
    alter database datafile '+DATA/oracledata1/smart_oplog01_07.dbf' resize 1024M;
    alter database datafile '+DATA/oracledata1/smart_oplog01_08.dbf' resize 1024M;

    -----------------------------------------------发送记录-------------------------------------
    alter database datafile '+DATA/oracledata1/smart_osendbak1_01.dbf' resize 1024M;
    alter database datafile '+DATA/oracledata1/smart_osendbak1_02.dbf' resize 1024M;
    alter database datafile '+DATA/oracledata1/smart_osendbak1_03.dbf' resize 1024M;
    alter database datafile '+DATA/oracledata1/smart_osendbak1_04.dbf' resize 1024M;
    alter database datafile '+DATA/oracledata1/smart_osendbak1_05.dbf' resize 1024M;
    alter database datafile '+DATA/oracledata1/smart_osendbak1_06.dbf' resize 1024M;

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  • 原文地址:https://www.cnblogs.com/hmwh/p/11722982.html
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