How to delete a mysql-enum-like column in sql server?

Question

in orther to get a column similar to the mysql ENUM type, I wrote a sql query as follows

ALTER TABLE [DbName].[dbo].[MediaContent]
ADD MediaType nvarchar(50) 
check(MediaType in ('audio','video','song','other')) 

this worked as wished(for test): But now I want to delete this column without success. It seems like there no way to directly delete a column which has a constraint up on it. How can I solve this issue? I want to delete this column and create another one.

here is the error message I get while the deletion

 The object 'CK__MediaCont__Media__14270015' is dependent on column 'MediaType'.
  ALTER TABLE DROP COLUMN MediaType failed 
because one or more objects access this         
column. (Microsoft SQL Server, Error: 5074)

Answer 1

The object referenced in the error message is the name of the constraint. You should be able to use the follow:

ALTER TABLE [DbName].[dbo].[MediaContent]
  DROP CONSTRAINT CK__MediaCont__Media__14270015

Answer 2

You need to first drop the check constraint mentioned in the error message since that's stopping you from dropping the column. Following that you may drop the column.

Answer 3

Drop the constrain first then drop the column ,it will work