case when 语句merchantCode 有三个值分别是globalMerchant,mc:{ABC=1,OUPAY=LX0000000},12345678我现在要写一段语句,当merchantCode =globalMerchant时,需要执行的是merchantCode is null,等于其他的时,执行相对应的值(case m.

vhdl 并行语句进程语句,case语句,元件例化语句,when.else语句,哪个不是并行语句 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 case when语句结尾用end 还是end casePL SQLend 和 end case有什么区别? 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 vb select case 这个语句? ruby,一个简单的case when结构语句(1..100).each do |i|case i % 15when 0 ; then puts like 0when 3,6,9,12 ; then puts like 3when 5,10 ; then puts like 5endend我除了第一句的for循环明白外,就不太懂后面的case when了,还有 select case 语句里 可以再套select case vb6.0中case语句 case is>10 and is case when then else end switch(a){ case 'a':case 'b':case 'c':输出语句； break； }这是运行的哪一个case语句呀? switch-case语句的流程图 怎么画 switch语句后面的case语句能用表达式吗 sql语句 case when or 自己写的sqlselect date_format(createDate,'%Y-%m-%d') as createDate,count(case when reqtype='runUp' then imei end) as runUp,count(case when (reqtype='login' or reqtype='register') then imei end) as loginFROM (select distinct SQL语句case whenselect trunc(date '2009-01-01','dd') as date_id, b.org_id as org_id, b.risk_id as risk_id, sum(a.planfee-nvl(c.payreffee,0)) , (case when to_char(statistic_date-payrefdate>=0) and to_char(st 这语句什么意思select * from [Feedbacks] where QId=3 order by case when QId=3 then 1 else 2 end,QId这个语句什么意思select * from [Feedbacks] where QId=3 order by case when QId=3 then 1 else 2 end,QId sql case when then ...虚心求教select case salarywhen 5000 then '高薪'when 4500 then '中薪'when 3500 then '中低薪'else 'null'end as '工资等级' from telenolist我想统计各个工资级别的人数 那个count(*)应该放在语句的哪