oracle分区表加索引 oracle分区表增加索引

oracle分区表增加索引

-03-29

oracle分区表查询比较慢，以前是按CID分区，欲增加索引。

1、普通表创建index

CREATE INDEX IDX_LOGIN_MESSAGE_CID on LOGIN_MESSAGE(COMPANY_ID);

2、create index idx_viewer_03_CID on viewer_03(COMPANY_ID)

local

(

partition PT_10028196 tablespace VIEWER_DATA_TS_03,

partition PT_20000831 tablespace VIEWER_DATA_TS_03,

partition PT_20000621 tablespace VIEWER_DATA_TS_03,

partition PT_20000156 tablespace VIEWER_DATA_TS_03,

partition PT_20000593 tablespace VIEWER_DATA_TS_03,

partition PT_10028196 tablespace VIEWER_DATA_TS_03

)

err:

ORA-14024: number of partitions of LOCAL index must equal that of the underlying table

3、create index idx_viewer_03_CID on viewer_03(COMPANY_ID) local unusable;

4、select INDEX_NAME,PARTITION_NAME,STATUS from user_ind_partitions where INDEX_NAME='IDX_VIEWER_03_CID';

5、重建分区索引

alter index IDX_VIEWER_03_CID rebuild partition PT_1002;

alter index IDX_VIEWER_PAGE_03_CID rebuild partition PT_1008;

6、set linesize 200

select INDEX_NAME,PARTITION_NAME,STATUS,TABLESPACE_NAME from user_ind_partitions where INDEX_NAME='IDX_VIEWER_03_CID' and PARTITION_NAME='PT_1002';

7、脚本

#!/bin/sh

. ~/.bash_profile

ym=`date +%Y%m`

vt=VIEWER_${ym}

pt=VIEWER_PAGE_${ym}

idx_vt=IDX_VIEWER_${ym}_CID

idx_pt=IDX_VIEWER_PAGE_${ym}_CID

sqlplus 'tv/123456' << EOF

alter table ${pt} modify PAGE_ID NUMBER(12);

create index $idx_vt on ${vt}(COMPANY_ID) local unusable;

create index $idx_pt on ${pt}(COMPANY_ID) local unusable;

EOF

8、

#!/bin/sh

cid=$1;

ym=`date +%Y%m`

idx_vt=IDX_VIEWER_${ym}_CID

idx_pt=IDX_VIEWER_PAGE_${ym}_CID

if [[ -z $1 ]];then

echo "Usage: $0 company_id "

exit 0;

fi

sqlplus 'talk99_viewer/talk99123456' << EOF

alter index ${idx_vt} rebuild partition PT_$cid;

alter index ${idx_pt} rebuild partition PT_$cid;

set linesize 200

select INDEX_NAME,PARTITION_NAME,TABLESPACE_NAME,status from user_ind_partitions where INDEX_NAME='${idx_vt}'

and PARTITION_NAME='PT_${cid}';

quit;

EOF

9、SELECT TABLE_NAME,PARTITION_NAME,TABLESPACE_NAME FROM USER_TAB_PARTITIONS where PARTITION_NAME='PT_20001326';查询单个分区情况

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