Answer to Question #306195 in Databases | SQL | Oracle | MS Access for SERGEI HOOD

Question #306195

1)proof the following rule by using university database

 sigma <condition1>(sigma < condition2>

(R)) = sigma

<condition2>

(sigma < condition1>

(R)) .

2)proof the following rule by using university database

sigma <cond1>(sigma < cond2>

(sigma <cond3>(R))

= sigma <cond1>

AND < cond2> AND < cond3>(R)))


0
Service report
It's been a while since this question is posted here. Still, the answer hasn't been got. Consider converting this question to a fully qualified assignment, and we will try to assist. Please click the link below to proceed: Submit order

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS