在SQL Server 2008数据库中,存在表users(含name、salary字段),则下列语句实现的功能是()。 (选择一项) If Exists (select * from users where salary<5000) Begin Update users set salary=5000 End Go
【简答题】阅读文章,回答问题 (10分) Someone once asked a successful businessman this question, “How have you achieved so much in your lifetime?” He replied, “I have dreamt. I have turned my mind free to imagine(想象) what ...
【简答题】阅读文章,回答问题。 Hello, boys and girls. Let me tell you something about our art room. In my school, there is an art room. It is clean. 1. There is a teacher and twenty students in it now . There are twenty ...
【简答题】阅读文章,回答问题。 The holiday's upon us.After months of study, you have some time to yourself.So, why not read a book? Well, some people will say, ' Why trouble with books? We have the Internet and other m...