Question

I have two tables: computers, and equipment. Both tables have all of the same information; make, model, location, etc. However, computers have two extra fields, processor, and ram.

I want to create a location report that displays all of the computers, and all other equipment in a specific room and display it in a table. Obviously the equipment will be blank for RAM and Processor.

I am having a hard time figuring out a query. If I use union, I get an error that the tables don’t match.

How would I go about doing this?

Thanks

Answer 1

Use union specifying the exact same amount of columns.

Like this:

select make, model, location, processor, ram
  from computers
 union all
select make, model, location, '', ''
  from equipment

Please note the two extra “fake” columns on the latter select.