Creating Tables In SQL Server Via Query Analyzer With Relationships

I've been searching around for some info on how to set this up, but with no luck.I need to have a .sql file that will set up a few tables and these tables will have relationships and contraints.I can do this by hand in enterprise manager, but need to set up some procedures that will do the same thing.For instance, I can create the tables just fine.....CREATE TABLE students ( sId int NOT NULL PRIMARY KEY,        studentId varchar(50) NOT NULL,               course varchar(50)              )

CREATE TABLE courses  ( cId int NOT NULL PRIMARY KEY,        course varchar(50) NOT NULL,               sco varchar(50)              )But, I need to set up relationships in there somehow.Once student may have many courses (one to many) and one course may have many sco's (one to many) SCO would be another table.Can someone point me to a good link that would show how to complete these procedures?Thanks all,Zath