Constraints

Constraints (MySql,tables,null,PK,FK etc)

Hi all(waves) noob here ( :) ) ( yes you might look down upon me) ( :( ) never the less....:)  Quick question: Tables made so far: department values (depno,dname) course values values (courseno) How would I create a table eg "Table budgets"...with values of two budgets (£100 and £200) for...