A unique constraint : Unique « Constraints « SQL Server / T-SQL

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SQL Server / T-SQL » Constraints » Unique   A unique constraint   5> CREATE TABLE MyTable ( 6>   MyID Int IDENTITY(1,1) NOT NULL , ID Int NOT NULL 7>  , Description nVarChar(50) 8>  , Region nVarChar(10) DEFAULT 'PNW' 9>  , CONSTRAINT MyTable_PK PRIMARY KEY NONCLUSTERED (MyID,ID)) 10> GO 1> 2> drop table MyTable; 3> GO   Related examples in the same category 1.  Add Unique constaint to table creation 2.  Adding a UNIQUE Constraint to an Existing Table

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