下面不属于标准SQL语言有三大功能组件的是()。
A.DTL数据转换语言
B.DDL数据定义语言
C.DCL数据控制语言
D.DML数据操纵语言
- · 有4位网友选择 C,占比40%
- · 有4位网友选择 B,占比40%
- · 有2位网友选择 A,占比20%
A.DTL数据转换语言
B.DDL数据定义语言
C.DCL数据控制语言
D.DML数据操纵语言
A、Select MAX, MIN, AVG Sage from Student
B、Select MIN, MAX, AVG Sage from Student
C、Select MAX(Sage),MIN(Sage),AVG(Sage) from Student
D、Select MIN(Sage),MAX(Sage),AVG(Sage) from Student
A、Select * From Student where Sage=20
B、Select * From Student where Sage='20'
C、Select * From Student where Sage=【20】
D、Select * From Student where Sage EQUAL 20
A、Select * From Student Where Ssex='男' Or Sage<'21'<br> B、Select * From Student Where Ssex='男' Or Sage<21<br> C、Select * From Student Where Ssex=男 And Sage<'21'<br> D、Select * From Student Where Ssex='男' And Sage<21<br>
A、Select * From Student Where Sname like '周%'
B、Select * From Student Where Sname like '%周'
C、Select * From Student Where Sname like '_周'
D、Select * From Student Where Sname like '周_'
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