how to create unique constraints in sql server?

how to create unique constraints in sql server?



1.Microsoft SQL Server | microsoft.com

Description:Transform Your Information Platform with Microsoft SQL Server.
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2.Creating and Modifying UNIQUE Constraints

Description:You can create a UNIQUE constraint as part of the table
definition when you create a table. If a table already exists, ... SQL
Server 2008 R2 Other Versions



3.SQL UNIQUE Constraint - W3Schools

Description:SQL UNIQUE Constraint on CREATE TABLE. The following SQL
creates a UNIQUE constraint on the "P_Id" column when the "Persons" table
is created: SQL Server / …



4.Create Unique Constraints

Description:You can create a unique constraint in SQL Server 2012 by using
SQL Server Management Studio or Transact-SQL to ensure no duplicate values
are entered in …



5.SQL Server 2005 How Create a Unique Constraint? - Stack ...

Description:How do I create a unique constraint on an existing table in
SQL Server 2005? I am looking for both the TSQL and how to do it in the
Database Diagram.



6.UNIQUE Constraints in Microsoft SQL Server

Description:UNIQUE constraints allow SQL Server administrators to specify
that a column may not contain duplicate values. When you create a new
UNIQUE constraint, SQL Server ...



7.Defining SQL Server constraints with TSQL - TechRepublic

Description:TechRepublic's SQL Server ... a name for the constraint and to
create the constraint on multiple ... creates a unique constraint on the
table ...



8.SQL Server UNIQUE Constraint - SQLUSA - SQL USA .com

Description:... Microsoft SQL Server T-SQL scripts in SSMS Query Editor
for demonstrating UNIQUE constraint creation. -- SQL Server Create UNIQUE
... -- Create unique constraint.



9.Microsoft SQL Server Constraints - OdeToCode

Description:... Line 1 CREATE UNIQUE INDEX terminated because a duplicate
key was found for ... When we re-enable the constraint, SQL Server will
not complain as the data is not ...



10.How to create UNIQUE constraints In Sql server

Description:The UNIQUE constraint uniquely identifies each record in a
database table. The UNIQUE constraints provide a guarantee for uniqueness
for a column or set of columns.