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4> CREATE TABLE ClassGrades(
5> ClassID int,
6> StudentID int,
7> GradeLetter varchar(2),
8> Constraint PK_ClassGrades
9> PRIMARY KEY(ClassID, StudentID),
10> Constraint CK_GradeRange_ClassID
11> CHECK (LEFT(UPPER(GradeLetter),1)
12> LIKE '[A-F]' AND ClassID < 1000)
13> )
14> GO
1>
2> INSERT ClassGrades VALUES(1, 1, 'C+')
3> INSERT ClassGrades VALUES(1, 2, 'A+')
4> INSERT ClassGrades VALUES(1, 3, 'V-')
5> INSERT ClassGrades VALUES(1001, 1, 'A')
6> INSERT ClassGrades VALUES(999, 2, 'A')
7> GO
(1 rows affected)
(1 rows affected)
Msg 547, Level 16, State 1, Server J\SQLEXPRESS, Line 4
The INSERT statement conflicted with the CHECK constraint "CK_GradeRange_ClassID". The conflict occurred in database "master", table "dbo.ClassGrades".
The statement has been terminated.
Msg 547, Level 16, State 1, Server J\SQLEXPRESS, Line 5
The INSERT statement conflicted with the CHECK constraint "CK_GradeRange_ClassID". The conflict occurred in database "master", table "dbo.ClassGrades".
The statement has been terminated.
(1 rows affected)
1>
2> drop table ClassGrades;
3> GO
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