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SISTEM MANAJEMEN BASIS DATA
KONKURENSI BASIS DATA
Disusun oleh:
Muhammad Ilham W – 13523115
Dana Aprillia – 14523212
Nadine Deskananda Sajiatmoko – 14523267
Za Idatin Nikmah – 14523297
FAKULTAS TEKNOLOGI INDUSTRI
JURUSAN TEKNIK INFORMATIKA
UNIVERSITAS ISLAM INDONESIA
KELOMPOK3
 MuhammadIlhamW – 13523115
 Dana Aprillia–14523212
 Nadine DeskanandaSajiatmoko –14523267
 Za IdatinNikmah – 14523297
Konkurensi
1. Loginusermenggunakan2 useryang privilage (hakakses) nyasudahdiatur
2. Masuk ke SQLCommand
3. Menampilkansemuadatapadatabel Employeesdari userHR
4. Mengambil contoh,menampilkanEmployee_iddanFirst_name dari tabel Employeesdari
userHR
5. Lakukanupdate data dari tabel EmployeesspadauserHRdenganupdate email “baruaja
diganti”dimanaemployee_idadalah101 pada userNadine.Lalumenampilkandatapada
userDatin danbelumterjadi perubahanapapunkarenadi userNadine belumdilakukan
commit/ Rollback.
6. SetelahdilakukanRollbackpadauserNadine makaperubahandatayangdilakukanpada
userNadine akankembali padadataawal
7. Melakukanupdate gaji padauserNadine dimanaemployee_idadalah102.Tampilkandata
gaji pada userDatinyang employee_idadalah102 dantidakterjadi perubahan
8. SeelahcommitpadauserNadine makabisamenampilkandatapadauserDatin
Locking
9. Melakukanupdate datapada userDatindan hasilnyaadalah
Pada userNadine belumterjadi perubahandata
10. Melakukanupdate dataemail di tabel EmployeesuserHRdimanaemployee_idadalah103
dan terjadi lockingkarenasebelumnyauserDatinmelakukanupdate datayangsamadan
belumdicommitataudirollback
11. SetelahmelakukanCommitdi userDatinmakauserNadine dapatmeng-updatedatayang
terkunci
12. Melakukanupdate datapada masing-masinguseryaituuserDatindanuserNadine (seperti
gambar dibawah) dandataberhasil di update
13. Pada userNadine,dataemail berhasil di update sedangkandatagaji elumberubah.Hal itu
dikarenakanprosesupdate databelumdi commit/rollback.Begitujugadengan userDatin
14. KemudiauserDatinmelakukanupdate dataemail padaemployee_id 104 yangsebelumnya
sudahdiupdate olehuserNadine.DanuserNadine melakukanupdate datasalary/gajipada
employee_id105yang sebelumnyadiupdateolehuserDatindanbelumdi commit/rollback.
Maka akanterjadi deadlockkarenaadaprosesupate yangterjadi secarabersamaan.
SolusinyaadalahsalahstuUserharus melakukancommitdata/rollback.Makahasilnya
adalah:
Linktutorial youtube:
 Deadlock: https://youtu.be/2UjV6SOFdL4
 Konkurasi:https://youtu.be/X_937UJ9Zwo
 Locking:https://youtu.be/H8mAtRylLyE

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Database Concurrency

  • 1. SISTEM MANAJEMEN BASIS DATA KONKURENSI BASIS DATA Disusun oleh: Muhammad Ilham W – 13523115 Dana Aprillia – 14523212 Nadine Deskananda Sajiatmoko – 14523267 Za Idatin Nikmah – 14523297 FAKULTAS TEKNOLOGI INDUSTRI JURUSAN TEKNIK INFORMATIKA UNIVERSITAS ISLAM INDONESIA
  • 2. KELOMPOK3  MuhammadIlhamW – 13523115  Dana Aprillia–14523212  Nadine DeskanandaSajiatmoko –14523267  Za IdatinNikmah – 14523297 Konkurensi 1. Loginusermenggunakan2 useryang privilage (hakakses) nyasudahdiatur 2. Masuk ke SQLCommand 3. Menampilkansemuadatapadatabel Employeesdari userHR
  • 3. 4. Mengambil contoh,menampilkanEmployee_iddanFirst_name dari tabel Employeesdari userHR 5. Lakukanupdate data dari tabel EmployeesspadauserHRdenganupdate email “baruaja diganti”dimanaemployee_idadalah101 pada userNadine.Lalumenampilkandatapada userDatin danbelumterjadi perubahanapapunkarenadi userNadine belumdilakukan commit/ Rollback.
  • 4. 6. SetelahdilakukanRollbackpadauserNadine makaperubahandatayangdilakukanpada userNadine akankembali padadataawal 7. Melakukanupdate gaji padauserNadine dimanaemployee_idadalah102.Tampilkandata gaji pada userDatinyang employee_idadalah102 dantidakterjadi perubahan 8. SeelahcommitpadauserNadine makabisamenampilkandatapadauserDatin
  • 5. Locking 9. Melakukanupdate datapada userDatindan hasilnyaadalah Pada userNadine belumterjadi perubahandata
  • 6. 10. Melakukanupdate dataemail di tabel EmployeesuserHRdimanaemployee_idadalah103 dan terjadi lockingkarenasebelumnyauserDatinmelakukanupdate datayangsamadan belumdicommitataudirollback 11. SetelahmelakukanCommitdi userDatinmakauserNadine dapatmeng-updatedatayang terkunci
  • 7. 12. Melakukanupdate datapada masing-masinguseryaituuserDatindanuserNadine (seperti gambar dibawah) dandataberhasil di update 13. Pada userNadine,dataemail berhasil di update sedangkandatagaji elumberubah.Hal itu dikarenakanprosesupdate databelumdi commit/rollback.Begitujugadengan userDatin
  • 8. 14. KemudiauserDatinmelakukanupdate dataemail padaemployee_id 104 yangsebelumnya sudahdiupdate olehuserNadine.DanuserNadine melakukanupdate datasalary/gajipada employee_id105yang sebelumnyadiupdateolehuserDatindanbelumdi commit/rollback. Maka akanterjadi deadlockkarenaadaprosesupate yangterjadi secarabersamaan. SolusinyaadalahsalahstuUserharus melakukancommitdata/rollback.Makahasilnya adalah:
  • 9. Linktutorial youtube:  Deadlock: https://youtu.be/2UjV6SOFdL4  Konkurasi:https://youtu.be/X_937UJ9Zwo  Locking:https://youtu.be/H8mAtRylLyE