I know about relational algebra, but with regard to the
select part of it, what should I say if there isn't any specific condition.
For example I have a
Hotels Table and I just want to output that result.
Should I just use
σ(Hotels) or do I need to put something like
I need your help!
Use Reference(R) if you dont have any condition
Reference Refers to an existing relation.
SQL: SELECT * FROM table
Examples: SELECT * FROM Hotels
Returns every tuple in the Member table that you need. (No particular order is requested or implied.)
If you need to apply any condition only then use