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Oracle 数据库的分页查询sql语句

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2016-06-07 17:45:551385browse

Oracle 数据库的分页查询sql语句

Oracle 数据库的分页查询sql语句

oracle 的查询sql语句
  oracle
      select *
  from (select rownum r,t1.* from 表名称 t1 where rownum   where t2.r >= m

  例如从表sys_option(主键为sys_id)中从10条记录还是检索20条记录,语句如下:

  select *
  from (select rownum r,t1.* from sys_option where rownum   where t2.r >= 10

 
      select * from 表名称 limit m,n
      从表sys_option(主键为sys_id)中从10条记录还是检索20条记录
      select * from sys_option limit 10,20
     
  sqlserver
      从数据库表中的第m条记录开始取n条记录,利用关键字top:值得注意的是如果select语句中既有top,又有order by,那么,会从排序好的结果中选择:
      select *
      from (select top n * from
                  (select top (m+n-1) * from table_name order by 主键 desc) tbl_1) tbl_2
      order by 主键 asc
     
      example here:(从表sys_option(主键为sys_id)中从10条记录还是检索20条记录)
      select *
      from (select top 20 *
      from (select top 29 * from sys_option order by sys_id desc) t1 ) t2
      order by sys_id asc   

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