1 / 5

BASIS DATA

BASIS DATA. 20 Query Tree (Initial Tree). 1. Narasi. Tampilkan Nomor proyek, Nomor departemen,Nama akhir pegawai, alamat dan tanggal lahir dari manajer Depertemen yang membawahi Project yang berlokasi di “Stafford”. SQL. SELECT P.PNUMBER, D.DNUMBER, E.LNAME,

molly-delgado
Download Presentation

BASIS DATA

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. BASIS DATA 20 Query Tree (Initial Tree) 1

  2. Narasi Tampilkan Nomor proyek, Nomor departemen,Nama akhir pegawai, alamat dan tanggal lahir dari manajer Depertemen yang membawahi Project yang berlokasi di “Stafford”

  3. SQL SELECT P.PNUMBER, D.DNUMBER, E.LNAME, E.ADDRESS, E.BDATE FROM EMPLOYEE E, DEPARTEMEN D, PROJECT P WHERE P.PLOCATION = “Stafford” AND D.DNUMBER = P.DNUM AND E.SSN = D.MGRSSN

  4. Aljabar Relasi πP.PNUMBER, D.DNUMBER, E.LNAME, E.ADDRESS, E.BDATE (δP.PLOCATION = “Stafford” ^ D.DNUMBER = P.DNUM ^ E.SSN=D.MGRSSN)

  5. Initial Tree πP.PNUMBER, D.DNUMBER, E.LNAME, E.ADDRESS, E.BDATE δP.PLOCATION= “Stafford” ^ D.DNUMBER = P.DNUM ^ E.SSN=D.MGRSSN X X E P D

More Related