问题
单项选择题
SQL语言具有两种使用方式，分别称为交互式SQL和______。
A．提示式SQL
B．多用户SQL
C．嵌入式SQL
D．解释式SQL
答案
参考答案：C
解析： SQL语言可以直接以命令方式交互使用，也可以嵌入到程序设计语言中以程序方式使用，并且使用起来非常方便。也就是说，SQL语言有两种使用方式，一种是交互式SQL，一种是嵌入式SQL。
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SQL语言具有两种使用方式，分别称为交互式SQL和______。
A．提示式SQL
B．多用户SQL
C．嵌入式SQL
D．解释式SQL
参考答案：C
解析： SQL语言可以直接以命令方式交互使用，也可以嵌入到程序设计语言中以程序方式使用，并且使用起来非常方便。也就是说，SQL语言有两种使用方式，一种是交互式SQL，一种是嵌入式SQL。
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A．length
B．distance
C．degree
D．lengths