CASE WHEN LEN(GY_YGDM.YSSFZH)>0 THEN left(CAST(GY_YGDM.YSSFZH AS VARCHAR(32)),18) ELSE '-' END AS s求详解
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/17 23:29:09
CASE WHEN LEN(GY_YGDM.YSSFZH)>0 THEN left(CAST(GY_YGDM.YSSFZH AS VARCHAR(32)),18) ELSE '-' END AS s求详解
CASE WHEN LEN(GY_YGDM.YSSFZH)>0 THEN left(CAST(GY_YGDM.YSSFZH AS VARCHAR(32)),18) ELSE '-' END AS s
求详解
CASE WHEN LEN(GY_YGDM.YSSFZH)>0 THEN left(CAST(GY_YGDM.YSSFZH AS VARCHAR(32)),18) ELSE '-' END AS s求详解
这个问题大哥我来帮你解答.
CASE WHEN LEN(GY_YGDM.YSSFZH)>0 THEN left(CAST(GY_YGDM.YSSFZH AS VARCHAR(32)),18) ELSE '-' END AS s求详解
case when then else end
Case
case
fu..len..
substr(i,len),如果len
case when语句结尾用end 还是end casePL SQLend 和 end case有什么区别?
CASE a WHEN 1 THEN b ELSE NULL END
case when 语句怎么写,举个例子
能否在from 之后加 case when 语句?
能不能在Where 后面用Case when 语句
翻译:Are you always build case when you with me?
--简单Case函数 CASE sex WHEN '1' THEN '男' WHEN '2' THEN '女' ELSE '其他' END --Case搜索函数 CASE请问这两种用法有什么区别,分别在什么情况下使用?--简单Case函数 CASE sex WHEN '1' THEN '男' WHEN '2' THEN '女' ELSE
sql case when请教请教sql中case when 判断语句select 姓名,工龄,(case when (工龄>= '35') then 90%when (工龄>='30' and 工龄='20' and 工龄='10' and 工龄
谁能帮我解释一下这段程序的意思?最好每一句特别是开头那几句有什么作用?VARIANT variant_inp;COleSafeArray safearray_inp;long k=0;int len;BYTE rxdata[2048];CString strtemp;if(m_ctrlComm.GetCommEvent()){case 2:{variant_inp=
len(abc-abc) 是七不
vfp中的LEN,DTOS,
LeN 英语怎么读