DB2笔记

刷新表

call sysproc.admin_cmd ( 'reorg table SCM_BASECATEGORY' )

从新设置设置主键初始值

alter table SCM_BASECATEGORY alter column BASECATEGORY_ID restart with 317;

DB2展现分组前n条数据

select * from 
(
select id,name ,row_number() over(partition by id order by name desc) as idd from hr.aaaa
) z where idd <=3