Luiz Rosa luizguilhermefr
🚚
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| ╔═══════════════════╦═════════════════╦═══════════════════╗ | |
| ║ [PK][FK] employee ║ [PK][FK] skill ║ [PK][FK] language ║ | |
| ╠═══════════════════╬═════════════════╬═══════════════════╣ | |
| ║ 1 ║ frontend ║ portuguese ║ | |
| ║ 1 ║ design ║ NULL ║ | |
| ║ 1 ║ NULL ║ french ║ | |
| ║ 1 ║ design ║ portuguese ║ | |
| ╚═══════════════════╩═════════════════╩═══════════════════╝ |
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| ╔═══════════════════╦═════════════════╦═══════════════════╗ | |
| ║ [PK][FK] employee ║ [PK][FK] skill ║ [PK][FK] language ║ | |
| ╠═══════════════════╬═════════════════╬═══════════════════╣ | |
| ║ 1 ║ frontend ║ french ║ | |
| ║ 1 ║ design ║ portuguese ║ | |
| ║ 1 ║ frontend ║ spanish ║ | |
| ╚═══════════════════╩═════════════════╩═══════════════════╝ |
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| ╔═══════════════════╦═════════════════╦═══════════════════╗ | |
| ║ [PK][FK] employee ║ [PK][FK] skill ║ [PK][FK] language ║ | |
| ╠═══════════════════╬═════════════════╬═══════════════════╣ | |
| ║ 1 ║ frontend ║ french ║ | |
| ║ 1 ║ design ║ portuguese ║ | |
| ║ 1 ║ NULL ║ spanish ║ | |
| ╚═══════════════════╩═════════════════╩═══════════════════╝ |
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| ╔═══════════════════╦═════════════════╦═══════════════════╗ | |
| ║ [PK][FK] employee ║ [PK][FK] skill ║ [PK][FK] language ║ | |
| ╠═══════════════════╬═════════════════╬═══════════════════╣ | |
| ║ 1 ║ frontend ║ NULL ║ | |
| ║ 1 ║ design ║ NULL ║ | |
| ║ 1 ║ NULL ║ french ║ | |
| ║ 1 ║ NULL ║ portuguese ║ | |
| ║ 1 ║ NULL ║ spanish ║ | |
| ╚═══════════════════╩═════════════════╩═══════════════════╝ |
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| ╔═════════════════╦═══════════════════╦══════════════════════╗ | |
| ║ [PK][FK] seller ║ [PK][FK] company ║ [PK][FK] product ║ | |
| ╠═════════════════╬═══════════════════╬══════════════════════╣ | |
| ║ 1 ║ Samsung ║ Hard drives ║ | |
| ║ 1 ║ Samsung ║ Phones ║ | |
| ║ 1 ║ Apple ║ Phones ║ | |
| ╚═════════════════╩═══════════════════╩══════════════════════╝ |
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| ╔═══════════════════╦═════════════════╗ | |
| ║ [PK][FK] employee ║ [PK][FK] skill ║ | |
| ╠═══════════════════╬═════════════════╣ | |
| ║ 1 ║ frontend ║ | |
| ║ 1 ║ design ║ | |
| ╚═══════════════════╩═════════════════╝ | |
| ╔═══════════════════╦═══════════════════╗ | |
| ║ [PK][FK] employee ║ [PK][FK] language ║ | |
| ╠═══════════════════╬═══════════════════╣ |
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| ╔═══════════════════╦═════════════════╦═══════════════════╗ | |
| ║ [PK][FK] employee ║ [PK][FK] skill ║ [PK][FK] language ║ | |
| ╚═══════════════════╩═════════════════╩═══════════════════╝ |
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| ╔═══════════════════╦═════════════════════╦══════════════════════╗ | |
| ║ [PK] project_id ║ [FK] university_id ║ name ║ | |
| ╠═══════════════════╬═════════════════════╬══════════════════════╣ | |
| ║ 1 ║ 1 ║ Imunology ║ | |
| ║ 2 ║ 1 ║ Citology ║ | |
| ║ 3 ║ 2 ║ Robotics ║ | |
| ║ 4 ║ 3 ║ Embbeded Systems ║ | |
| ║ 5 ║ 3 ║ Fluid Mechanics ║ | |
| ╚═══════════════════╩═════════════════════╩══════════════════════╝ |
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| ╔═══════════════════╦═════════════════════╦══════════════════════╦══════════════════════╗ | |
| ║ [PK] project_id ║ [FK] university_id ║ name ║ unversity_phone ║ | |
| ╠═══════════════════╬═════════════════════╬══════════════════════╣══════════════════════╣ | |
| ║ 1 ║ 1 ║ Imunology ║ 453333-2222 ║ | |
| ║ 2 ║ 1 ║ Citology ║ 453333-2222 ║ | |
| ║ 3 ║ 2 ║ Robotics ║ 559999-7777 ║ | |
| ║ 4 ║ 3 ║ Embbeded Systems ║ 331212-1212 ║ | |
| ║ 5 ║ 3 ║ Fluid Mechanics ║ 331212-1212 ║ | |
| ╚═══════════════════╩═════════════════════╩══════════════════════╩══════════════════════╝ |
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| ╔═══════════════════╦════════════════╦══════════╗ | |
| ║ [PK] product_id ║ [PK] store_id ║ price ║ | |
| ╠═══════════════════╬════════════════╬══════════╣ | |
| ║ 1 ║ 1 ║ 12.50 ║ | |
| ║ 2 ║ 1 ║ 10.50 ║ | |
| ║ 3 ║ 2 ║ 9.25 ║ | |
| ║ 2 ║ 3 ║ 9.85 ║ | |
| ║ 5 ║ 3 ║ 2.30 ║ | |
| ╚═══════════════════╩════════════════╩══════════╝ |