最近在做Silverlight项目,结合使用了WCF RIA service,通过linq to sql自动生成model类型,使用起来非常方便.具体可见linq to sql之silverlight. 但是,这其中可能会发生一个比较奇怪的问题:在silverlight客户端无法访问在WCF服务端已经定义的类型. 解决办法: 添加一个返回全部实体的方法,重新编译.发布,并在客户端重新引用,便可解决.
,) ), Sales int,Dates datetime) insert into ProductSale ,'2014-01-05' UNION ALL ,'2014-02-05' UNION ALL ,'2014-03-05' UNION ALL ,'2014-01-05' UNION ALL ,'2014-03-05' UNION ALL ,'2014-04-05' ) Sales,b.Dates ) b left join ProductSale as c on b.年=YEAR(c
1.新建 shortcuts.txt 内容如下: s = SELECT t.* FROM t w = WHERE b = BETWEEN AND l = LIKE '%%' o = ORDER BY insw = IN (SELECT a FROM a WHERE a ) sw = SELECT t.* FROM t WHERE t sc* = SELECT COUNT(*) FROM t st = SELECT t.* ,t.ROWID FROM t f = FOR UPDATE u = U
昨天刚写了半连接改写系列,今天就遇到了此类型SQL: 优化前 耗时:28s 返回:0 SELECT D.DAILYAUDITNO, D.TRANSTOACC FROM PB_DOIC.MM_DAILYREPORT_TD D WHERE D.REPORTSTATUS = '4' AND D.TRANSTOACC IN ('00', 'B1') AND EXISTS (SELECT 1 FROM PB_DOIC.MM_DAILYREPORT_DETAIL_TD WHERE DAILYAUDITNO
USE [UMoney] GO /****** Object: StoredProcedure [dbo].[WCL_WorkerStatDailyWrite] Script Date: 10/08/2013 14:28:26 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ------------------------------------ --用途:根据日期生成用户个人信息日统计表并插入数据 --王朝理 --时间:2013
查询出来的数据的编号,不是按照从1开始的有序进行的,界面上显示想显示有序排序 select RANK() OVER(ORDER BY id ) as ID ,* from reconcilet_detailes select RANK() OVER(ORDER BY 字段名 ) as ID ,ID from 数据库 如下图: 测试出,Postgre SQL ,SQL Server 好用