maintains a target database to be updated to the current state of another source db?

and handles the following:

1)Check a source table to see if a table exists in target database, if it isn’t add it.
2)In each table check to see if the column/field exists, and if not add it.
3)Compare the column properties of the source against the installed version, and if there were changes, alter the destination.
4)Clear and refresh all the stored procedures

TIA