Pattern based constraint : Check « Constraints « SQL Server / T-SQL Tutorial

Home
SQL Server / T-SQL Tutorial
1.Query
2.Insert Delete Update
3.Table
4.Table Join
5.Data Types
6.Set Operations
7.Constraints
8.Subquery
9.Aggregate Functions
10.Date Functions
11.Math Functions
12.String Functions
13.Data Convert Functions
14.Analytical Functions
15.Sequence Indentity
16.View
17.Index
18.Cursor
19.Database
20.Transact SQL
21.Procedure Function
22.Trigger
23.Transaction
24.XML
25.System Functions
26.System Settings
27.System Tables Views
28.User Role
29.CLR
SQL Server / T-SQL Tutorial » Constraints » Check 
7.5.11.Pattern based constraint
5>    CREATE TABLE Customers
6>    (
7>       CustomerNo     int     IDENTITY   NOT NULL
8>          PRIMARY KEY,
9>       CustomerName   varchar(30)        NOT NULL,
10>       Address1       varchar(30)        NOT NULL,
11>       Address2       varchar(30)        NOT NULL,
12>      City            varchar(20)        NOT NULL,
13>      State           char(2)            NOT NULL,
14>      Zip             varchar(10)        NOT NULL,
15>      Contact         varchar(25)        NOT NULL,
16>      Phone           char(15)           NOT NULL,
17>      FedIDNo         varchar(9)         NOT NULL,
18>      DateInSystem    smalldatetime      NOT NULL
19>    )
20>    GO
1>    ALTER TABLE Customers
2>       WITH NOCHECK
3>       ADD CONSTRAINT CN_CustomerPhoneNo
4>       CHECK
5>       (Phone LIKE '([0-9][0-9][0-9]) [0-9][0-9][0-9]-[0-9][0-9][0-9][0-9]')
6> go
1>
2>
3>    ALTER TABLE Customers
4>       CHECK
5>       CONSTRAINT CN_CustomerPhoneNo
6>
7> GO
1>
2> drop table Customers;
3> GO
1>
2>
3>
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
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.