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查看表空间利用率脚本-扩表空间大小

2011-10-22 14:11 176 查看
查看表空间利用率脚本
select t.*
from (SELECT D.TABLESPACE_NAME,
SPACE "SUM_SPACE(M)",
BLOCKS SUM_BLOCKS,
SPACE - NVL(FREE_SPACE, 0) "USED_SPACE(M)",
ROUND((1 - NVL(FREE_SPACE, 0) / SPACE) * 100, 2) "USED_RATE(%)",
FREE_SPACE "FREE_SPACE(M)"
FROM (SELECT TABLESPACE_NAME,
ROUND(SUM(BYTES) / (1024 * 1024), 2) SPACE,
SUM(BLOCKS) BLOCKS
FROM DBA_DATA_FILES
GROUP BY TABLESPACE_NAME) D,
(SELECT TABLESPACE_NAME,
ROUND(SUM(BYTES) / (1024 * 1024), 2) FREE_SPACE
FROM DBA_FREE_SPACE
GROUP BY TABLESPACE_NAME) F
WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME(+)
UNION ALL --if have tempfile
SELECT D.TABLESPACE_NAME,
SPACE "SUM_SPACE(M)",
BLOCKS SUM_BLOCKS,
USED_SPACE "USED_SPACE(M)",
ROUND(NVL(USED_SPACE, 0) / SPACE * 100, 2) "USED_RATE(%)",
SPACE - USED_SPACE "FREE_SPACE(M)"
FROM (SELECT TABLESPACE_NAME,
ROUND(SUM(BYTES) / (1024 * 1024), 2) SPACE,
SUM(BLOCKS) BLOCKS
FROM DBA_TEMP_FILES
GROUP BY TABLESPACE_NAME) D,
(SELECT TABLESPACE,
ROUND(SUM(BLOCKS * 8192) / (1024 * 1024), 2) USED_SPACE
FROM V$SORT_USAGE
GROUP BY TABLESPACE) F
WHERE D.TABLESPACE_NAME = F.TABLESPACE(+)) t
order by "USED_RATE(%)" desc;

1 查询要修改的表空间的数据文件名:
select file_name,blocks,tablespace_name from dba_data_files a where a.tablespace_name='D_1024_IDX'



2 将对应表空间的dpf文件路径记下来。比如'/data/teleport/userdata/d_1024_idx.dbf'



3 最后修改表空间数据文件:

ALTER DATABASE DATAFILE '/data/teleport/userdata/d_1024_idx.dbf' RESIZE 20000m;大小请根据前端实际情况定,需先确认操作系统中是否有空间
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