How to change column datatype in SQL database without losing data

Question

I have SQL Server database and I just realized that I can change the type of one of the columns from int to bool.

How can I do that withou

Answer 1

If it is a valid change.

you can change the property.

Tools --> Options --> Designers --> Table and Database designers --> Uncheck --> Prevent saving changes that required table re-creation.

Now you can easily change the column name without recreating the table or losing u r records.