Oracle索引迁移,释放磁盘空间

2020-11-09 来源：乌哈旅游

Oracle索引文件迁移步骤：备份GBOS用户表索引：通过plsqlDevelop工具将GBOS用户表索引全部导出，以做备份。

Oracle索引文件迁移步骤：

准备工作：
1)备份GBOS用户表索引：通过plsqlDevelop工具将GBOS用户表索引全部导出，以做备份。

1.查看索引表空间具有那些数据文件
select file_id,file_name,tablespace_name,bytes/1024/1024 M,blocks from dba_data_files
where TABLESPACE_NAME='USERINDEX'order by 1;

FILE_ID FILE_NAME TABLESPACE M BLOCKS
--------- -------------------------------------------------- ---------- ---------- ----------
19 D:\ORACLE\ORADATA\INNETDB\USERINDEX01.DBF USERINDEX 10240 1310720
20 D:\ORACLE\ORADATA\INNETDB\USERINDEX02.DBF USERINDEX 10240 1310720
21 D:\ORACLE\ORADATA\INNETDB\USERINDEX03.DBF USERINDEX 10240 1310720
22 D:\ORACLE\ORADATA\INNETDB\USERINDEX04.DBF USERINDEX 10240 1310720
23 D:\ORACLE\ORADATA\INNETDB\USERINDEX05.DBF USERINDEX 10240 1310720
39 D:\ORACLE\ORADATA\INNETDB\USERINDEX06.DBF USERINDEX 6500 832000
40 D:\ORACLE\ORADATA\INNETDB\USERINDEX07.DBF USERINDEX 6500 832000
41 D:\ORACLE\ORADATA\INNETDB\USERINDEX08.DBF USERINDEX 6500 832000
42 D:\ORACLE\ORADATA\INNETDB\USERINDEX09.DBF USERINDEX 6300 806400
43 D:\ORACLE\ORADATA\INNETDB\USERINDEX10.DBF USERINDEX 6300 806400
62 D:\ORACLE\ORADATA\INNETDB\USERINDEX11.DBF USERINDEX 1400 179200
63 D:\ORACLE\ORADATA\INNETDB\USERINDEX12.DBF USERINDEX 1400 179200

2.创建新的索引表空间，，添加索引数据文件
CREATE SMALLFILE TABLESPACE "INDEXTBS" DATAFILE 'D:\ORACLE\ORADATA\INNETDB\INDEXTBS\INDEX001.DBF'
SIZE 100M AUTOEXTEND ON NEXT 100M MAXSIZE 2000M LOGGING EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO;

ALTER TABLESPACE "INDEXTBS" ADD DATAFILE 'D:\ORACLE\ORADATA\INNETDB\INDEXTBS\INDEX003.DBF'
SIZE 100M AUTOEXTEND ON NEXT 100M MAXSIZE 4000M ;

3.查找属于gbos用户的表索引，(除去clob类型的索引,clob索引存放在user表空间）
(分区索引存放在dba_segments表里，普通索引信息放在dba_indexes表里)
SELECT 'alter index gbos.'||index_name||' rebuild tablespace INDEXTBS'
FROM dba_INDEXES T where t.table_owner='GBOS'
and index_name not like '%SYS_%'
and t.tablespace_name='USERINDEX'

SELECT 'alter index gbos.'||index_name||' rebuild tablespace INDEXTBS'
FROM dba_INDEXES T where t.tablespace_name='USERINDEX' and t.table_owner='GBOS'

普通索引迁移
alter index gbos.INDEX_T_B_FAULT_LIST_STATUS rebuild tablespace INDEXTBS;
alter index gbos.INDEX_T_B_FAULT_L_OCCUR_TIME rebuild tablespace INDEXTBS;
alter index gbos.INDEX_T_B_FAULT_L_TERMINALID rebuild tablespace INDEXTBS;
alter index gbos.IDX_CAR_INFO_COL rebuild tablespace INDEXTBS;
alter index gbos.IX_T_O_OPEN_DOOR_REC_CLCT_DATE rebuild tablespace INDEXTBS;
alter index gbos.IX_T_O_OPEN_DOOR_REC_TERM_ID rebuild tablespace INDEXTBS;
alter index gbos.IX_T_O_OPEN_DOOR_REC_TICK rebuild tablespace INDEXTBS;

分区索引迁移
Alter index gbos.IDX_O_PERIOD_INFO_COLS rebuild partition SYS_P61 tablespace INDEXTBS;
Alter index gbos.IDX_O_PERIOD_INFO_COLS rebuild partition SYS_P62 tablespace INDEXTBS;
Alter index gbos.IDX_O_PERIOD_INFO_COLS rebuild partition SYS_P63 tablespace INDEXTBS;
Alter index gbos.IDX_O_PERIOD_INFO_COLS rebuild partition SYS_P64 tablespace INDEXTBS;
Alter index gbos.IDX_O_PERIOD_INFO_COLS rebuild partition SYS_P65 tablespace INDEXTBS;
Alter index gbos.IDX_O_PERIOD_INFO_COLS rebuild partition SYS_P66 tablespace INDEXTBS;
Alter index gbos.IDX_O_PERIOD_INFO_COLS rebuild partition SYS_P67 tablespace INDEXTBS;
Alter index gbos.IDX_O_PERIOD_INFO_COLS rebuild partition SYS_P68 tablespace INDEXTBS;
Alter index gbos.IDX_O_PERIOD_INFO_COLS rebuild partition SYS_P69 tablespace INDEXTBS;
Alter index gbos.IDX_O_PERIOD_INFO_COLS rebuild partition SYS_P70 tablespace INDEXTBS;

Alter index gbos.INDEX_T_O_PERIOD_INFO rebuild partition SYS_P41 tablespace INDEXTBS;
Alter index gbos.INDEX_T_O_PERIOD_INFO rebuild partition SYS_P42 tablespace INDEXTBS;
Alter index gbos.INDEX_T_O_PERIOD_INFO rebuild partition SYS_P43 tablespace INDEXTBS;
Alter index gbos.INDEX_T_O_PERIOD_INFO rebuild partition SYS_P44 tablespace INDEXTBS;
Alter index gbos.INDEX_T_O_PERIOD_INFO rebuild partition SYS_P45 tablespace INDEXTBS;
Alter index gbos.INDEX_T_O_PERIOD_INFO rebuild partition SYS_P46 tablespace INDEXTBS;
Alter index gbos.INDEX_T_O_PERIOD_INFO rebuild partition SYS_P47 tablespace INDEXTBS;
Alter index gbos.INDEX_T_O_PERIOD_INFO rebuild partition SYS_P48 tablespace INDEXTBS;
Alter index gbos.INDEX_T_O_PERIOD_INFO rebuild partition SYS_P49 tablespace INDEXTBS;
Alter index gbos.INDEX_T_O_PERIOD_INFO rebuild partition SYS_P50 tablespace INDEXTBS;

Alter index gbos.Ix_T_O_Period_Info_Tick rebuild partition SYS_P51 tablespace INDEXTBS;
Alter index gbos.Ix_T_O_Period_Info_Tick rebuild partition SYS_P52 tablespace INDEXTBS;
Alter index gbos.Ix_T_O_Period_Info_Tick rebuild partition SYS_P53 tablespace INDEXTBS;
Alter index gbos.Ix_T_O_Period_Info_Tick rebuild partition SYS_P54 tablespace INDEXTBS;
Alter index gbos.Ix_T_O_Period_Info_Tick rebuild partition SYS_P55 tablespace INDEXTBS;
Alter index gbos.Ix_T_O_Period_Info_Tick rebuild partition SYS_P56 tablespace INDEXTBS;
Alter index gbos.Ix_T_O_Period_Info_Tick rebuild partition SYS_P57 tablespace INDEXTBS;
Alter index gbos.Ix_T_O_Period_Info_Tick rebuild partition SYS_P58 tablespace INDEXTBS;
Alter index gbos.Ix_T_O_Period_Info_Tick rebuild partition SYS_P59 tablespace INDEXTBS;
Alter index gbos.Ix_T_O_Period_Info_Tick rebuild partition SYS_P60 tablespace INDEXTBS;

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Oracle索引迁移,释放磁盘空间