外面是单引号,里面的是双引号
dim cm as New SqlCommand("select count(*) from Users where u
1个回答
相关问题
-
select count(*) as total from ddcm_news where key=a
-
SQL语句理解 select * from B where (select count(1) as num from A
-
$sql="SELECT count(*) as pcount FROM news" 和$sql = "UPDATE a
-
ms sql :select * from (select *from b) as xxx where 和 select
-
select * from v$locked_object a,user_objects b where a.OBJEC
-
select from vo.EcsUsers u where u.userName=yao and u.payPoin
-
系统实现时,对用户的登录判断所用的动态SQL语句如下: “SELECT* FROM Users WHERE User_N
-
如何提高下面语句的效率select * from(select a_month ,b_name ,count(DISTI
-
select count(*)count 什么意思和select * 有什么区别
-
SELECT MAX(account) AS account FROM shop 和 SELECT MAX(accoun