统计数据库每天的数据增长量

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SQL语言: 统计数据库每天的数据增长量
set linesize 1000 
set pagesize 100 
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,2) FREE_SPACE
                  FROM DBA_FREE_SPACE
                 GROUP BY TABLESPACE_NAME) F
         WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME(+)
        UNION ALL
        SELECT D.TABLESPACE_NAME,USED_SPACE "USED_SPACE(M)",ROUND(NVL(USED_SPACE,0) / SPACE * 100,SPACE - USED_SPACE "FREE_SPACE(M)"
          FROM (SELECT TABLESPACE_NAME,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;

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