oracle学习资料pdf SELECT job,sal, CASE WHEN sal<1000 THEN 0 WHEN sal=1000 THEN sal*0.1 WHEN sal=2000 THEN sal*0.15 WHEN sal>=3000 THEN sal*0.2 ELSE sal END tax FROM emp;
1.case 表达式 when 值 then 2.case when 表达式 3.SELECT job,sal, CASE WHEN sal<1000 THEN 0 WHEN sal=1000 THEN sal*0.1 WHEN sal=2000 THEN sal*0.15 WHEN sal>=3000 THEN sal*0.2 ELSE sal END tax FROM emp;
学习vi和vim的最佳工具书，英文版 Learning the vi and vim Editors includes: A complete introduction to text editing with vi: How to move around vi in a hurry Beyond the basics, such as using buffers vi's global search and replacement Advanced editing, including cu
正配置数据才能运行; 一.运行于本地ACCESS 1.如果你没有配置数据库,那会提示你没有配置,强出一个框,你按确定后,进入登陆窗口,在最下面有一个新键配置方案,单击此处,然后弹出一个配置框,相信编写数据的朋友们应该知道怎么做了吧,我的是ACCESS数据库,没有密码,选择Microsoft Jet 4.0 OLE DB Provider,下一步选择数据库文件Server.mdb后,按确定回到登陆窗口,单击保存,程序会自己重启一次,好了按照默认密码进去吧.二.运行于SQL 1.把本程序目录下DA
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天思产品触发器elect @XM=isnull(b.XM,0),@itm=a.itm,@os_no=b.os_no ,@tax_id=d.tax_id,@ZK=ISNULL(E.ZK,0),@kd=isnull(b.kd,0) from tf_pos a left join prdt c on a.prd_no=c.prd_no left join mf_Pos d on a.os_no=d.os_no LEFT JOIN MF_POS_Z E ON A.OS_NO=E.OS_NO, INSE
IF (@xm like '%纱帘%'OR @xm LIKE '%布帘%'or @xm like '%遮光布%') begin update a set a.up_end=up*@zk/100,a.dis_cnt=@zk,a.amtn=up*@zk/100*qty/1.17,a.amt=up*@zk/100*qty, a.tax=up*@zk/100*qty/1.17*0.17 from tf_pos a left join tf_pos_z b on a.os_no=b.os_no wher
Enrolling in the iOS Developer Program To develop for the App Store, you first need to join the iOS Developer Program. After you enroll in the program, you have access to all the resources and tools you need to manage your account and begin testing
prtools--matlab中模式识别的工具箱 里面附带工具箱的说明。 解压后将文件夹放入matlab的tool目录中，即可调用其中的源文件。 下面是说明文件的目录： A Matlab Toolbox for Pattern Recognition R.P.W. Duin, P. Juszczak, P. Paclik, E. Pekalska, D. de Ridder, D.M.J. Tax Table of Contents 1. Motivation 5 2. Essential c
