<分区>
出于某种原因,我的 IN() 子句的 Sqlparameter 不起作用。代码编译正常,如果我用实际值替换参数,查询就可以工作
StringBuilder sb = new StringBuilder();
foreach (User user in UserList)
{
sb.Append(user.UserId + ",");
}
string userIds = sb.ToString();
userIds = userIds.TrimEnd(new char[] { ',' });
SELECT userId, username
FROM Users
WHERE userId IN (@UserIds)