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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,
                       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
        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;