CHECK Clause : Check « Constraints « SQL Server / T-SQL Tutorial

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

Java Source Code / Java Documentation

Java Open Source

Jar File Download

Photoshop Tutorials

Flash Tutorials

3ds-Max Tutorials

Illustrator Tutorials

C# / CSharp Tutorial

C# / CSharp Open Source

ASP.NET Tutorial

JavaScript DHTML

JavaScript Tutorial

JavaScript Reference

HTML CSS Reference

Python Tutorial

Python Open Source

SQL Server / T-SQL

Oracle PL / SQL

Oracle PL/SQL Tutorial

VB.Net Tutorial

Flash / Flex / ActionScript

VBA / Excel / Access / Word

Microsoft Office PowerPoint 2007 Tutorial

Microsoft Office Excel 2007 Tutorial

Microsoft Office Word 2007 Tutorial

SQL Server / T-SQL Tutorial » Constraints » Check

7. 5. 4. CHECK Clause


[CONSTRAINT c_name]

        CHECK [NOT FOR REPLICATION] expression



expression must evaluate to a Boolean value (TRUE or FALSE)





11> CREATE TABLE customer

12>         (cust_no INTEGER NOT NULL,

13>         cust_group CHAR(3) NULL,

14>         CHECK (cust_group IN ('c1', 'c2', 'c10')))

15> GO

1>

2> drop table customer;

3> GO

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

www.java2java.com | Contact Us

Copyright 2009 - 12 Demo Source and Support. All rights reserved.

All other trademarks are property of their respective owners.