分区表

--删除分区 truncate table partition

declare day number;

begin

day := 20110901;

loop

execute immediate ‘alter table lbidw.TB_DW_MGR_01_DAY truncate partition DATA_‘ || day;

day := day + 1;

exit when day > 20110915;

end loop;

end;

--分区大小

SELECT   owner,

DECODE (partition_name,

NULL, segment_name,

segment_name || ‘:‘ || partition_name

) NAME,

segment_type, tablespace_name, BYTES/1024/1024 , initial_extent, next_extent,

pct_increase, extents, max_extents

FROM dba_segments t

WHERE 1 = 1 AND extents > 1

and t.segment_name like ‘TB_MK%‘

ORDER BY 9 DESC,

3

;

--统计分区数

select count(*),owner from dba_tables group by owner;