A table-level check constraint that limits Banker IDs to a specific format : Check « Constraints « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » Constraints » Check 
7. 5. 13. A table-level check constraint that limits Banker IDs to a specific format
A statement that defines the check constraint


8CREATE TABLE Bankers
9(BankerID        CHAR(6)     NOT NULL PRIMARY KEY,
10> BankerName       VARCHAR(50NOT NULL,
11> CHECK     ((BankerID LIKE '[A-Z][A-Z][0-9][0-9][0-9][0-9]') AND
12>            (LEFT(BankerID,2= LEFT(BankerName,2))))
13> GO
1>
2> --An INSERT statement that fails due to the check constraint
3>
4INSERT Bankers VALUES ('Mc4559','Castle Printers, Inc.')
5>
6>
7> drop table Bankers;
8> GO
Msg 547, Level 16, State 1, Server J\SQLEXPRESS, Line 4
The INSERT statement conflicted with the CHECK constraint "CK__Bankers__6FFF798F". The conflict occurred in database "master", table "dbo.Bankers".
The statement has been terminated.
7. 5. Check
7. 5. 1. Using CHECK Constraints
7. 5. 2. Adding a CHECK Constraint to an Existing Table
7. 5. 3. Constraints with name
7. 5. 4. CHECK Clause
7. 5. 5. Check Constraint
7. 5. 6. CHECK (DATEPART(DAY, GETDATE()) < 28)
7. 5. 7. A check constraint uses an expression to qualify records that are acceptable for any Inserts or Updates
7. 5. 8. Use or to link two conditions for check constraint
7. 5. 9. Using a Multicolumn CHECK Constraint
7. 5. 10. Check for data length
7. 5. 11. Pattern based constraint
7. 5. 12. Mark nocheck for a constraint
7. 5. 13. A table-level check constraint that limits Banker IDs to a specific format
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