Bases de données relationnelles

Transcription

1 Bases de données relationnelles

2 itunes Music Library <dict> <key>track ID</key><integer>1281</integer> <key>name</key><string>dazed And Confused</string> <key>artist</ key><string>led Zeppelin</string> <key>composer</key><string>led Zeppelin</string> <key>album</key><string>the Song Remains The Same</string> <key>kind</key><string>fichier audio AAC</string> <key>size</key><integer> </integer> <key>total Time</key><integer> </integer> <key>year</key><integer>2007</integer> <key>bpm</key><integer>40</integer> <key>date Modified</key><date> T17:34:42Z</date> <key>date Added</key><date> T13:41:58Z</date> <key>bit Rate</ key><integer>128</integer> <key>sample Rate</key><integer>44100</integer> <key>rating</ key><integer>80</integer> <key>rating Computed</key><true/> <key>album Rating</ key><integer>80</integer> <key>sort Album</key><string>Song Remains The Same</string> <key>persistent ID</key><string>7C7C6699E8469B39</string> <key>track Type</key><string>File</string> <key>file Type</key><integer> </integer> <key>location</key><string>file://localhost/users/js/music/itunes/ itunes%20music/led% 20Zeppelin/The%20Song%20Remains%20The%20Same/ Dazed%20And%20Confused.m4a</string> <key>file Folder Count</key><integer>4</integer> <key>library Folder Count</key><integer>1</integer> </dict>

3 itunes Music Store Date Titre Client Prix 1 décembre 2013 No Quarter Dupont 1,00 12 janvier 2014 Moog Island Durand 1,00 15 janvier 2014 No. 13 Baby Martin 1,00 16 janvier 2014 There There Martin 1,00 20 février 2014 Mr. Mastondont Farm Machin 1,00

4 Structure d une table nom dʼune relation attribut Pilote NumPil NomPil Adresse Salaire n-uplet/tuple/enregistrement 1 Dupond Paris Dupré Toulouse Duchamp Paris Durand Montpellier Dupond Nice Degré : nombre dʼattributs = 4 Cardinalité : nombre de tuples = 5

5 Structure d une table clé primaire? Titre Durée Interprète Album Genre Comanche 2:10 Motorcade Of Generosity Alternative/Punk Ruby Sees All 3:00 Motorcade Of Generosity Alternative/Punk Up So Close 3:14 Motorcade Of Generosity Alternative/Punk Man-Sized Wreath 3:09 R.E.M. Live At The Olympia In Dublin Rock Man-Sized Wreath 2:33 R.E.M. Accelerate Rock This Boy 2:22 Franz Ferdinand You Could Have It So Much Better Alternative/Punk Walk Away 3:36 Franz Ferdinand You Could Have It So Much Better Alternative/Punk Evil And A Heathen 2:06 Franz Ferdinand You Could Have It So Much Better Alternative/Punk There Goes My Gun 1:50 Pixies Doolittle Alternative/Punk Rock 'n' Roll Lifestyle 4:14 Motorcade Of Generosity Alternative/Punk Attributs Éléments

6 Structure d une table clé primaire identifiant Titre Durée Interprète Album Genre 1 Comanche 2:10 Motorcade Of Generosity Alternative/Punk 2 Ruby Sees All 3:00 Motorcade Of Generosity Alternative/Punk 3 Up So Close 3:14 Motorcade Of Generosity Alternative/Punk 4 Man-Sized Wreath 3:09 R.E.M. Live At The Olympia In Dublin Rock 5 Man-Sized Wreath 2:33 R.E.M. Accelerate Rock 6 This Boy 2:22 Franz Ferdinand You Could Have It So Much Better Alternative/Punk 7 Walk Away 3:36 Franz Ferdinand You Could Have It So Much Better Alternative/Punk 8 Evil And A Heathen 2:06 Franz Ferdinand You Could Have It So Much Better Alternative/Punk 9 There Goes My Gun 1:50 Pixies Doolittle Alternative/Punk 10 Rock 'n' Roll Lifestyle 4:14 Motorcade Of Generosity Alternative/Punk

7 Structure d une base table morceaux clés étrangères Titre Durée Interprète Album Comanche 2:10 Motorcade Of Generosity Up So Close 3:14 Motorcade Of Generosity Man-Sized Wreath 3:09 R.E.M. Live At The Olympia In Dublin Man-Sized Wreath 2:33 R.E.M. Accelerate This Boy 2:22 Franz Ferdinand You Could Have It So Much Better Evil And A Heathen 2:06 Franz Ferdinand You Could Have It So Much Better There Goes My Gun 1:50 Pixies Doolittle Rock 'n' Roll Lifestyle 4:14 Motorcade Of Generosity table interprètes table albums clé étrangère Nom Album Interprète R.E.M. Franz Ferdinand Pixies Motorcade Of Generosity Fashion Nugget Live At The Olympia In Dublin Accelerate Trompe le Monde You Could Have It So Much Better Doolittle R.E.M. R.E.M. Pixies Franz Ferdinand Pixies

8 Structure d une base clés étrangères table morceaux identifiant Titre Durée Interprète Album 1 Comanche 2: Up So Close 3: Man-Sized Wreath 3: Man-Sized Wreath 2: This Boy 2: Evil And A Heathen 2: There Goes My Gun 1: Rock 'n' Roll Lifestyle 4: table interprètes table albums identifiant Nom identifiant Album Interprète 1 1 Motorcade Of Generosity 1 2 R.E.M. 2 Fashion Nugget 1 3 Live At The Olympia In Dublin 2 3 Franz Ferdinand 4 Accelerate 2 4 Pixies 5 Trompe le Monde 4 6 You Could Have It So Much Better 3 7 Doolittle 4 clé étrangère

9 Union table compositeurs Nom Prénom Pays Waters Roger UK Barbelivien Philippe F Buck Peter USA Yorke Tom UK Verschuren André B Adamo Salvatore B Black Franck USA Zimmermann Robert USA table interprètes Nom Prénom Pays Wright Richard UK Gray Félix F François Jean-Pierre F Yorke Tom UK Hendrix Jimi USA Waters Muddy USA Black Franck USA Zimmermann Robert USA table interprètes table compositeurs Nom Prénom Pays Waters Roger UK Barbelivien Philippe F Buck Peter USA Yorke Tom UK Verschuren André B Adamo Salvatore B Black Franck USA Wright Richard UK Gray Félix F François Jean-Pierre F Hendrix Jimi USA Waters Muddy USA Zimmermann Robert USA Fusion

10 Intersection table compositeurs Nom Prénom Pays Waters Roger UK Barbelivien Philippe F Buck Peter USA Yorke Tom UK Verschuren André B Adamo Salvatore B Black Franck USA Zimmermann Robert USA table interprètes table interprètes table compositeurs Nom Prénom Pays Yorke Tom UK Black Franck USA Zimmermann Robert USA Nom Prénom Pays Wright Richard UK Gray Félix F François Jean-Pierre F Yorke Tom UK Hendrix Jimi USA Waters Muddy USA Black Franck USA Zimmermann Robert USA

11 Différence table compositeurs Nom Prénom Pays Waters Roger UK Barbelivien Philippe F Buck Peter USA Yorke Tom UK Verschuren André B Adamo Salvatore B Black Franck USA Zimmermann Robert USA table interprètes Nom Prénom Pays Wright Richard UK Gray Félix F François Jean-Pierre F Yorke Tom UK Hendrix Jimi USA Waters Muddy USA Black Franck USA Zimmermann Robert USA table compositeurs - table interprètes Nom Prénom Pays Waters Roger UK Barbelivien Philippe F Verschuren André B Adamo Salvatore B table interprètes - table compositeurs Nom Prénom Pays Wright Richard UK Gray Félix F François Jean-Pierre F Hendrix Jimi USA Waters Muddy USA

12 Sélection table morceaux = R Titre Durée Interprète Album Comanche 2:10 Motorcade Of Generosity Up So Close 3:14 Motorcade Of Generosity Man-Sized Wreath 3:09 R.E.M. Live At The Olympia In Dublin Man-Sized Wreath 2:33 R.E.M. Accelerate This Boy 2:22 Franz Ferdinand You Could Have It So Much Better Evil And A Heathen 2:06 Franz Ferdinand You Could Have It So Much Better There Goes My Gun 1:50 Pixies Doolittle Rock 'n' Roll Lifestyle 4:14 Motorcade Of Generosity Sélection σp (R) Titre Durée Interprète Album Comanche 2:10 Motorcade Of Generosity Up So Close 3:14 Motorcade Of Generosity Rock 'n' Roll Lifestyle 4:14 Motorcade Of Generosity P est la proposition Album= Motorcade Of Generosity σ(album= Motorcade Of Generosity )(morceaux)

13 Projection table morceaux = R Titre Durée Interprète Album Comanche 2:10 Motorcade Of Generosity Up So Close 3:14 Motorcade Of Generosity Man-Sized Wreath 3:09 R.E.M. Live At The Olympia In Dublin Man-Sized Wreath 2:33 R.E.M. Accelerate This Boy 2:22 Franz Ferdinand You Could Have It So Much Better Evil And A Heathen 2:06 Franz Ferdinand You Could Have It So Much Better There Goes My Gun 1:50 Pixies Doolittle Rock 'n' Roll Lifestyle 4:14 Motorcade Of Generosity Projection π(r) Titre Interprète Comanche Up So Close Man-Sized Wreath Man-Sized Wreath This Boy Evil And A Heathen There Goes My Gun Rock 'n' Roll Lifestyle R.E.M. R.E.M. Franz Ferdinand Franz Ferdinand Pixies π(titre, Interprète)(morceaux)

14 table morceaux Produit cartésien de deux tables Titre Durée Interprète Album Comanche 2:10 Motorcade Of Generosity Up So Close 3:14 Motorcade Of Generosity Man-Sized Wreath 3:09 R.E.M. Live At The Olympia In Dublin Man-Sized Wreath 2:33 R.E.M. Accelerate This Boy 2:22 Franz Ferdinand You Could Have It So Much Better Evil And A Heathen 2:06 Franz Ferdinand You Could Have It So Much Better There Goes My Gun 1:50 Pixies Doolittle Rock 'n' Roll Lifestyle 4:14 Motorcade Of Generosity table albums x Album Motorcade Of Generosity Fashion Nugget Live At The Olympia In Dublin Accelerate Trompe le Monde You Could Have It So Much Better Doolittle Interprète R.E.M. R.E.M. Pixies Franz Ferdinand Pixies

15 Produit cartésien de morceaux x albums deux tables = Titre Durée Interprète Album Album Interprète Comanche 2:10 Motorcade Of Generosity Motorcade Of Generosity Up So Close 3:14 Motorcade Of Generosity Motorcade Of Generosity Man-Sized Wreath 3:09 R.E.M. Live At The Olympia In Dublin Motorcade Of Generosity Man-Sized Wreath 2:33 R.E.M. Accelerate Motorcade Of Generosity This Boy 2:22 Franz Ferdinand You Could Have It So Much Better Motorcade Of Generosity Evil And A Heathen 2:06 Franz Ferdinand You Could Have It So Much Better Motorcade Of Generosity There Goes My Gun 1:50 Pixies Doolittle Motorcade Of Generosity Rock 'n' Roll Lifestyle 4:14 Motorcade Of Generosity Motorcade Of Generosity Comanche 2:10 Motorcade Of Generosity Fashion Nugget Up So Close 3:14 Motorcade Of Generosity Fashion Nugget Man-Sized Wreath 3:09 R.E.M. Live At The Olympia In Dublin Fashion Nugget Man-Sized Wreath 2:33 R.E.M. Accelerate Fashion Nugget This Boy 2:22 Franz Ferdinand You Could Have It So Much Better Fashion Nugget Evil And A Heathen 2:06 Franz Ferdinand You Could Have It So Much Better Fashion Nugget There Goes My Gun 1:50 Pixies Doolittle Fashion Nugget Rock 'n' Roll Lifestyle 4:14 Motorcade Of Generosity Live At The Olympia In Dublin R.E.M. Comanche 2:10 Motorcade Of Generosity Live At The Olympia In Dublin R.E.M. Up So Close 3:14 Motorcade Of Generosity Live At The Olympia In Dublin R.E.M. Man-Sized Wreath 3:09 R.E.M. Live At The Olympia In Dublin Live At The Olympia In Dublin R.E.M. Man-Sized Wreath 2:33 R.E.M. Accelerate Live At The Olympia In Dublin R.E.M. This Boy 2:22 Franz Ferdinand You Could Have It So Much Better Live At The Olympia In Dublin R.E.M. Evil And A Heathen 2:06 Franz Ferdinand You Could Have It So Much Better Live At The Olympia In Dublin R.E.M. There Goes My Gun 1:50 Pixies Doolittle Live At The Olympia In Dublin R.E.M. Rock 'n' Roll Lifestyle 4:14 Motorcade Of Generosity Live At The Olympia In Dublin R.E.M. Comanche 2:10 Motorcade Of Generosity Accelerate R.E.M. Up So Close 3:14 Motorcade Of Generosity Accelerate R.E.M.

16 Produit cartésien de deux tables : problèmes Différencier les attributs : renommage Éliminer les éléments vides de sens : jointure

17 Renommage Morceaux.Titre Morceaux.Durée Morceaux.Interprète Morceaux.Album Albums.Album Albums.Interprète Comanche 2:10 Motorcade Of Generosity Motorcade Of Generosity Up So Close 3:14 Motorcade Of Generosity Motorcade Of Generosity Man-Sized Wreath 3:09 R.E.M. Live At The Olympia In Dublin Motorcade Of Generosity Man-Sized Wreath 2:33 R.E.M. Accelerate Motorcade Of Generosity This Boy 2:22 Franz Ferdinand You Could Have It So Much Better Motorcade Of Generosity Evil And A Heathen 2:06 Franz Ferdinand You Could Have It So Much Better Motorcade Of Generosity There Goes My Gun 1:50 Pixies Doolittle Motorcade Of Generosity

18 Jointure table morceaux identifiant Titre Durée Interprète Album 1 Comanche 2: Up So Close 3: Man-Sized Wreath 3: Man-Sized Wreath 2: This Boy 2: Evil And A Heathen 2: There Goes My Gun 1: Rock 'n' Roll Lifestyle 4: table interprètes identifiant Nom 1 2 R.E.M. 3 Franz Ferdinand Condition : morceaux.interprète = interprètes.identifiant 4 Pixies

19 Jointure identifiant Titre Durée Interprète Album identifiant Nom 1 Comanche 2: Up So Close 3: Man-Sized Wreath 3: R.E.M. 4 Man-Sized Wreath 2: R.E.M. 5 This Boy 2: Franz Ferdinand 6 Evil And A Heathen 2: Franz Ferdinand 7 There Goes My Gun 1: Pixies 8 Rock 'n' Roll Lifestyle 4: Franz Ferdinand morceaux interprètes (morceaux.interprète = interprètes.identifiant)

20 Combinaison : séances des films avec H. Bogart