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SQL - SQL Server - Add Column with Default Value and Check Constraint

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Example of SQL syntax to add a new column to an existing table, define a default value to the columns for the existing rows and also add a check constraint to limit the values that the column can hold.

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  1. ALTER TABLE
  2. 	GhibliMovies
  3. ADD
  4. 	Director VARCHAR(255) NULL
  5. CONSTRAINT
  6. 	director_check CHECK (Director IN ('Hayao Miyazaki', 'Isao Takahata', 'Yoshifumi Kondo', 'Goro Miyazaki', 'Hiromasa Yonebayashi'))
  7. DEFAULT
  8. 	'Hayao Miyazaki' WITH VALUES;

URL: http://msdn.microsoft.com/en-us/library/ms190273.aspx

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