Modelling price, discounts and inventory in a schema
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I am making a database for a store with inventory and discounts (study project), and I'm having problems with a few situations.
- A discount can be for a category or a specific product. That's two different types with a same variable - ratio. Would it be possible to somehow abstract them both into a single entity?
- Where should the discount (price modifier) connect to? Should it point to the price, or only to the "sold product" entity?
- How exactly should the product attributes change in the application? Do I update the price and the inventory tables when I sell a product, or do I leave it as it is and figure out the changes based on "sold product" table history?
schema
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I am making a database for a store with inventory and discounts (study project), and I'm having problems with a few situations.
- A discount can be for a category or a specific product. That's two different types with a same variable - ratio. Would it be possible to somehow abstract them both into a single entity?
- Where should the discount (price modifier) connect to? Should it point to the price, or only to the "sold product" entity?
- How exactly should the product attributes change in the application? Do I update the price and the inventory tables when I sell a product, or do I leave it as it is and figure out the changes based on "sold product" table history?
schema
asked 8 mins ago
user174176user174176
1
New contributor
user174176 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
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I am making a database for a store with inventory and discounts (study project), and I'm having problems with a few situations.
- A discount can be for a category or a specific product. That's two different types with a same variable - ratio. Would it be possible to somehow abstract them both into a single entity?
- Where should the discount (price modifier) connect to? Should it point to the price, or only to the "sold product" entity?
- How exactly should the product attributes change in the application? Do I update the price and the inventory tables when I sell a product, or do I leave it as it is and figure out the changes based on "sold product" table history?
schema
asked 8 mins ago
user174176user174176
1
New contributor
user174176 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I am making a database for a store with inventory and discounts (study project), and I'm having problems with a few situations.
- A discount can be for a category or a specific product. That's two different types with a same variable - ratio. Would it be possible to somehow abstract them both into a single entity?
- Where should the discount (price modifier) connect to? Should it point to the price, or only to the "sold product" entity?
- How exactly should the product attributes change in the application? Do I update the price and the inventory tables when I sell a product, or do I leave it as it is and figure out the changes based on "sold product" table history?
schema
schema
asked 8 mins ago
user174176user174176
1
New contributor
user174176 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 mins ago
user174176user174176
1
New contributor
user174176 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 mins ago
user174176user174176
1
New contributor
user174176 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 mins ago
user174176user174176
1
asked 8 mins ago
user174176user174176
1
1
New contributor
user174176 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
user174176 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
user174176 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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