先看一下原表: DECLARE @id INT; DECLARE @name NVARCHAR(100); DECLARE c_department CURSOR FOR SELECT StuID, Name FROM dbo.Stu_info; OPEN c_department; -- 打开游标 FETCH NEXT FROM c_department INTO @id, @name; WHILE @@FETCH_STATUS = 0 --返回被 FETCH语句执行的最后游标的状态-…
在今天的文章里,我想谈下对于即席SQL语句(ad-hoc SQL statements),SQL Server使用的简单参数化(Simple Parameterization)的一些特性和副作用.首先,如果你的SQL语句包含这些,简单参数化不会发生: JOIN IN BULK INSERT UNION INTO DISTINCT TOP GROUP BY HAVING COMPUTE Sub Queries 一般来说,如果你处理所谓的安全执行计划(Safe Execution Plan),SQL…
var conStr = "server=localhost;database=Data;user=sa;pwd=123456"; using (var connection = new SqlConnection(conStr)) { connection.Open(); var sql = string.Format( "update dbo.AutoStationData set Temperture={0} where StationNum=58365 and Dat…
use databaseName declare @tblname char(100) declare @sql char(5000) declare table_cursor cursor for select name from sysobjects where name like 'tb_card[_]%' and name<>'Tb_card_regist' and name<>'Tb_card_item' and name<>'Tb_card_discr…
下面是一个订单取消的含2个游标的存储过程 set ANSI_NULLS ON set QUOTED_IDENTIFIER ON go ALTER PROCEDURE [dbo].[CancelOrderBySystem] AS BEGIN declare /*声明变量*/ ), --状态 @TimeNow datetime, --当前时间 ), --订单单号 @GoodsID int, --商品ID @Num int, --数量 @SkuID int --规格ID set @Status='TR…
用游标,和WHILE可以遍历您的查询中的每一条记录并将要求的字段传给变量进行相应的处理 DECLARE ), ), @A3 INT DECLARE YOUCURNAME CURSOR FOR SELECT A1,A2,A3 FROM YOUTABLENAME OPEN YOUCURNAME fetch next from youcurname into @a1,@a2,@a3 begin --您要执行的操作写在这里 fetch next from youcurname into @a1,@a2,…
自己写的存储过程与游标结合使用的实例,与大家分享,也供自己查阅,仅供参考: --使用游标循环处理,删除重复的记录 declare @UserID int ) ) declare @UnitFlag int ) ) declare @Start int declare @End int ) declare @IsSubscribe bit declare curEmailTotalLib cursor for (select UserID,UserName,RealName,UnitFlag,Em…
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…
--创建存储过程 create proc test_proc @date datetime as select * from t_user where times between ),),),),' 07:00')) and ),),),),' 22:00')) go --修改存储过程 alter proc test_1 @date datetime as ) from t_user where times between ),DATEPART(YYYY,@date)) + '-' + ),DA…
--显示前条数据 select top(4) * from students; --pageSize:每页显示的条数 --pageNow:当前页 )) sno from students); --带条件的分页 select top (pageSize) * from students where sno not in ()) sno from students where ssex='男') and ssex='男'; 与Oracle的分页有些大同小异,就不一一介绍了Oracle分页连接http…
linux 下pymssql模块的安装 所需压缩包:pymssql-2.1.0.tar.bz2freetds-patched.tar.gz 安装: tar -xvf pymssql-2.1.0.tar.bz2 cd pymssql-2.1.0python setup.py install报错 则需要安装freetds tar -zxvf freetds-patched.tar.gz cd freetds-0.95.87/mkdir /usr/local/freetds./configure --…
