一棵树的层次结构都在一张表内,当有这样的需要的时候.. 可以这样玩: <!-- DepartmentDTO 对象对应 department表_查询sql --> <sql id="department_select_sql"> with ldepartment as ( select dept_id, parent_id, 0 as dept_level, row_number()over(order by getdate()) as orderid from…
declare @n int declare @rowcount int ) create table #temp ( id ,), employeeName ) ) insert into #temp select name from employee set @rowcount=@@rowcount while @n<@rowcount begin select @name=employeename from #temp where id=@n print(@name) end drop t…
表结果如图 )) ,'Sky,Blue,Water' ,'Book,Apple,Shirt' ,'Cup,Yellow,org' ,'box,phone,paper' GO SELECT id,SUBSTRING(A.NAME,B.number,CHARINDEX(',',a.NAME+',',b.number)-b.number) AS [name] FROM T AS A JOIN master.dbo.spt_values AS B )=',' 查询结果如下…
/* sql2005遍历表(方法1) insert into 数据表(userid,adddate) values((select userid from 用户表),date); */ /*sql2005 表变量遍历表(方法2)*/ --表变量declare @i int declare @ChannelID int declare @ChannelUpdateRoomCount int --nvarchar(50) --遍历 ) --遍历表中的每一行 )) begin and XH_Chann…
用 游标(Cursor) + While循环 的方法, 对Customers表中的CompanyName列进行遍历 ) declare pcurr cursor for select distinct companyname from customers open pcurr fetch next from pcurr into @customer ) begin print (@customer) fetch next from pcurr into @customer end close p…
create or replace procedure test_procedure_job asv1 varchar2(50);v2 varchar2(50);v3 varchar2(50);begin for v1 in (select t.id from test_table t) loop select t.username,t.password into v2,v3 from sshtest t where t.id = v1.id; …
declare cursor cur_test is select t.txt_desig, m.segment_id, s.code_type_direct, case when s.uom_dist_ver_lower = 'FL' then s.uom_dist_ver_lower || s.val_dist_ver_lower else to_char(s.val_dist_ver_lower) end as val from nvduser11.en_route_rte t right…
function test(){ var arrayObj = new Array(); $("#contentTable tbody tr").each(function(){ var v=$(this).find('.scorecss').val(); var msg=$(this).find('.msgdcss').val(); var id=$(this).find('.idcss').val(); if(v=="") { } else { if(isNaN…
use Research go ); ) NOT NULL, [mrs] date); DECLARE Table_Cursor CURSOR FOR--包含有列‘sigdate’的表 select a.[name] 表名 from sysobjects a, ( select [id],count(*) b from syscolumns where [name] ='sigdate' group by [id] ) b where a.[id]=b.[id] order by name as…
最近学习了一下SQL的分页查询,总结了以下几种方法. 首先建立了一个表,随意插入的一些测试数据,表结构和数据如下图: 现在假设我们要做的是每页5条数据,而现在我们要取第三页的数据.(数据太少,就每页5条了) 方法一: * from [StuDB].[dbo].[ScoreInfo] where [SID] not in ( [SID] from [StuDB].[dbo].[ScoreInfo] order by [SID]) order by [SID] 结果: 此方法是先取出前10条的SID…
假如tb_customer表中的数据量非常大,在显示时要分页显示而且每页只显示10条信息.为了效果我们取第三页的数据. 方法一:遍历两次表,取不同的数据. select top 10 * from tb_customer(nolock)where c_no not in(select top 20 c_no from tb_customer)order by c_no 方法解析:方先取出前20条的c_no(前两页),排除前20条数据的c_no,然后在剩下的数据里面取出前10条数据. 缺点:遍历表…
