School-LP-IOTIA/LP32-Modeles-logiques-de-donnees
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OMGiTzPomPom 2023-01-03 07:40:27 +01:00
parent f9eeb9f74f
commit fccdfb2c30
7 changed files with 24 additions and 1 deletions
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TD1/Scripts.sql Normal file
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/* Exemple sélectionner auteurs qui ont écris un articles sur le theme du covid
+─────+──────────+
| id | theme |
+─────+──────────+
| 1 | Mondial |
| 2 | Covid |
+─────+──────────+
*/
SELECT
a.*
FROM
auteurs au
JOIN
auteurs.articles aa ON au.id = aa.id_auteur
JOIN
articles art ON aa.id_article = art.id
JOIN
themes t ON art.id_theme = t.id
WHERE
t.id = 2

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schemas/entiteAssociation/centreMedical.drawio
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<mxGraphModel><root><mxCell id="0"/><mxCell id="1" parent="0"/></root></mxGraphModel>