Add Unique constaint to table creation : Unique « Constraints « SQL Server / T-SQL

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SQL Server / T-SQL » Constraints » Unique   Add Unique constaint to table creation 17> 18> -- Add Unique constaint to table creation 19> CREATE TABLE projects (project_no   CHAR(4)  DEFAULT 'p1', 20>                        project_name CHAR(15) NOT NULL, 21>                        budget       FLOAT    NULL 22>                        CONSTRAINT   unique_no UNIQUE (project_no)) 23> GO 1> 2> drop table projects 3> GO 1>                     Related examples in the same category 1.  A unique constraint 2.  Adding a UNIQUE Constraint to an Existing Table

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