Database Systems - Questions and Answers

I have created this according to my knowledge. There may be some mistakes. If there are mistakes please be kind enough to let me know. If it is useful, please share among your friends.

Thank you and Good luck all of you.

Piyumi Dayarathna

Software Engineering Undergraduate at SLIIT. 

Intern Software Developer at OpusXenta Lanka (pvt) ltd

E: lbpmdayarathna@gmail.com