How to create gender column in SQL?

Question

Can anyone tell me how to create gender column in SQL?

Answer 1

Here is the syntax to create a gender column in SQL:

Create table table_name (

Gender Varchar (10) check (gender in ('Female','Male'))

Here we use CHECK constraint with GENDER column so that you cannot enter any entry other than Male or Female.

If you want to add a gender column to an already existing table:

ALTER TABLE TableName

                ADD CONSTRAINT myCheckConstraint CHECK (gender in ('Female','Male'))

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