Oracle ->> 查看分区表的每个分区的数据行分布情况
时间:2015-07-13 00:38:24
收藏:0
阅读:1370
ora_hash函数用来返回分区号,而dbms_rowid.rowid_object()函数用来返回object_id
select dbms_rowid.rowid_object(rowid) obj_id, ora_hash ( id, 31, 0) part_id ,count(*) from sales_fact_part group by dbms_rowid.rowid_object(rowid), ora_hash(id,31,0) order by 1;
评论(0)