Consider the following relations:
emp(e_id: integer, e_name: string, age: integer, salary: real)
works(e_id: integer, dep_id: integer, affectation: date)
dept(dep_id: integer, dep_name: string, budget: real, manager_id: integer)
what referential integrity constraints exist between these relations?
what are the options for enforcing these constraints when a user attempts to delete a dept tuple?

1. so if i wanted to build a linux server for web services(apache) with 1cpu and 2 gb of memory.-operating at 75% of memory capacity2. a windows server with 2 cpu/ 4gb memory- operating at 85% of memory capacity3. a storage server with 1 cpu/ 2gb memory- operating at 85% of memory capacityhow much memory do i have to add for each server.so that the utilization rate for both cpu and memory is at a baseline of 60%."the details for the cpu like its processor or the memory's speed isnt to be concerned" yeah i kept asking my teacher if he's even sure about the but the whole class seems to be confused and the project is due in 3 days..this is a virtualization project where i have to virtualize a typical server into an exsi hypervisor.