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1. Top results related to basic inventory database design

   • Inventory database design

     Top Answer

     Answered Feb 08, 2014 · 57 votes

     I have seen both approaches at my current company and would definitely lean towards the first (calculating totals based on stock transactions).

     If you are only storing a total quantity in a field somewhere, you have no idea how you arrived at that number. There is no transactional history and you can end up with problems.

     The last system I wrote tracks stock by storing each transaction as a record with a positive or negative quantity. I have found it works very well.

     Other Answers

     Answered Nov 13, 2008 · 21 votes

     • The Data Model Resource Book, Vol. 1: A Library of Universal Data Models for All Enterprises
     • The Data Model Resource Book, Vol. 2: A Library of Data Models for Specific Industries
     • The Data Model Resource Book: Universal Patterns for Data Modeling

     I have Vol 1 and Vol 2 and these have been pretty helpful in the past.

     Other Answers

     Answered Nov 13, 2008 · 9 votes

     It depends, inventory systems are about far more than just counting items. For example, for accounting purposes, you might need to know accounting value of inventory based on FIFO (First-in-First-out) model. That can't be calculated by simple "totaling inventory received - total of inventory sold" formula. But their model might calculate this easily, because they modify accounting value as they go. I don't want to go into details because this is not programming issue but if they swear by it, maybe you didn't understand fully all their requirements they have to accommodate.

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   • Inventory Database Design

     Top Answer

     Answered Mar 24, 2009 · 7 votes

     Sounds like you need a status on the inventory table. For example, a record for an arbitrary tool can have a status field that is a foreign key in the "Statuses" table. The Statuses table could look like this:

     ID Description-----------------------1 Available2 In Use3 Broken

     ... etc.

     Your Inventory table could look like this:

     id status_id description-------------------------------------1 2 Hammer2 1 Hammer3 3 Hammer4 1 Saw5 3 Saw

     Then, when you calculate inventory, only show records where a tool has a status of "1" for Available. You could also run queries for management to show how many tools are "Broken". Plan for eventually deleting these records once the broken tools are accounted for properly, or, keep them for historical data purposes.

     At all costs, avoid creating separate tables for the disposition of any entity in the database. Use a "flag" field (i.e. status_id), so you can add new statuses to an application without needed to infinitely add new tables.

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     2/5

   • Inventory design database with colors and sizes

     Top Answer

     Answered Jan 08, 2015 · 7 votes

     Don't store multiple values in one column in a relational database - it's generally considered bad practice.

     It would be better to have two tables, one with a product name and product ID, and another for variations (having columns variation_id, product_id, size, colour, quantity). The product_id column in the variation table will be a foreign key to the product table.

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     3/5

   • Database Design: inventory and sales system?

     Top Answer

     Answered Jul 31, 2016 · 30 votes

     The solution you are looking for will rely on an accounting style model and a couple of bills of materials (BOM). Your major entity types will include:

     • SKU This is the list of things that you sell. It's properties will include things like product description and current retail price. You can get fancy and break price out into a child table that gives prices over time. Let's assume that you are going to leave that wrinkle out for now. Some SKUs can be "combos" of the sort you are talking about.
     • COMPONENT This is the list of things that make up a SKU, such as napkins, cups, buns, patties, coke syrup etc. - to use your example. Just as SKU has descriptions and prices, COMPONENTs have descriptions and unit costs. (Which can also be historized in a child table.) This table is where you would typically store your ROP too.
     • COMPOSITION This is a BOM which intersects SKU and COMPONENT and says how many units of each COMPONENT go into a unit of a SKU. You need one of these to intersect two SKUs too (for combos). You can either use one table or two tables for this. Two tables will keep the purists happy, one table will be expedient from a coder point of view.
     • SALE This is a transaction table that provides a header for recording a sale of one or more SKUs. This table would have things like transaction date, cashier ID, and other header items.
     • SALE_ITEM This is the transaction detail table that would include which SKU was sold (and how many) and for how much. The how much is a denormalization of the SKU price at time of sale, but could also include any special overrides to the price. The price actually charged for the SKU is a good thing to denormalize because someone could edit the list price in SKU and then you'd lose track of how much was actually charged for the item at the time.
     • INVENTORY_HDR This is a transactional table that is similar to the SALE conceptually, but it is the header for an inventory transaction, such as receiving new inventory, using up inventory (as in selling it) and for inventory adjustments. Again, this would be date/description stuff, but it can include a direct link to a SALE_ITEM for inventory movements that are sales if you like. You don't have to do it that way, but some people like to establish the connection between revenues and costs on a transaction by transaction basis.
     • INVENTORY_DTL This is the detail for an inventory transaction. This indicates which COMPONENT is going in or out, the quantity that went in or out, and the INVENTORY_HDR transaction that this movement applied to. This would also be where you keep the actual cost paid for the component item.
     • LOCATION You can (if you wish) also track the physical location of the inventory that you receive and use/sell. In a restaurant this may not be important but if you have a chain or if your restaurant has an offsite warehouse for component ingredients then you might care.

     Consider the following ERD:

     To do your revenue accounting you would be adding up the money recorded in the SALE_ITEM table.

     Stock levels are calculated based on adding up the INVENTORY_DTL ins and outs for each COMPONENT. (Don't store current stock levels in a table - This is doomed to cause reconciliation problems.)

     To do your cost accounting you would be adding up the money recorded in the INVENTORY_DTL table. Note that you won't usually know exactly which napkin or bun you sold, so it won't be possible to link specific component reciepts with specific SKU sales. Instead, you need to have a convention for determining which components were used for any given SKU. You may have accounting rules that specify what convention you are required to use. Most people use FIFO. Some industries use LIFO and I've even seen weighted average cost accounting.

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     4/5

   • Database Design: Inventory with multilevel packaging

     Top Answer

     Answered Apr 29, 2021 · 0 votes

     I was able to make a good structure: My products and positions are the same but I created a stock table like:

     id | product_id | amount | parent_id | position_id===================================================== 1 | 1013 | 1000 | 4 | 1 2 | 1013 | 1000 | 4 | 1 3 | 1014 | 500 | 4 | 1 4 | 1234 | NULL | NULL | 1

     The 1234 (random id) is a box that contains 2000 metal and 500 wood. I dont save this box in the product table.

     When I scan the box with id 3, I perform a recursive cte query:

     with recursive bom as ( select *, 1 as level from testing.stock where id = '4' #scanned id union all select c.*, p.level + 1 from testing.stock c join bom p on c.parent_id = p.id)select product_id as product, sum(amount), position_idfrom bom bleft join testing.product pd on b.product_id = pd.idwhere pd.id is not nullgroup by product_id, position_id

     which returns:

     sum | product | position2000 | 1013 | 3500 | 1014 | 3-

     to get by position I just run a variation of the above query. To perform an update I get the Ids inside that box and run a

     update testing.stock set position = '2' where id in (#variation of above query)-

     I hope this helps someone. This works for N packaging level

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     5/5

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2. People also ask

   How do I design a database for an inventory management system?

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3. www.geeksforgeeks.org › how-to-design-databaseHow to Design Database Inventory Management Systems

   www.geeksforgeeks.org › how-to-design-database

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   Apr 30, 2024 · Database Design Essentials for Inventory Management Systems. Designing a robust database for an Inventory Management System entails careful consideration of several key factors such as data structure, indexing, query optimization, and data integrity.

4. www.freecodecamp.org › news › making-an-awesomeHow to Make an Awesome Inventory Management Application in ...

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   Oct 5, 2017 · Inventory System Database Design. Typically, an inventory system has four basic elements: products, purchases, orders, and suppliers. Each element must be tracked based on its location, SKU, and quantity. Current inventory, or products on hand, is updated by tracking incoming shipments and outgoing orders.

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6. www.knack.com › blog › basics-of-inventory-databaseThe Basics of Inventory Database Management | Knack

   www.knack.com › blog › basics-of-inventory-database

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   Oct 26, 2023 · In this article, we’ll offer a comprehensive guide on all things inventory database management, from beginner-friendly tutorials and cheat sheets to problem-solving strategies and key metrics to track. Read on to learn more. What is Inventory Database Management?

7. intellisoft.io › inventory-management-databaseHow to Build Inventory Management Database - intellisoft.io

   intellisoft.io › inventory-management-database

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   • Discovery Phase. The first step is the discovery phase, where the groundwork for your IMS is laid out. This stage involves eliciting both functional and non-functional requirements, defining user roles, and determining necessary integrations with other systems like ERP, CRM, WMS, POS, and accounting systems.
   • Planning the Project in Detail. After laying the foundation, the next step is to meticulously plan the project. This stage includes outlining the scope of work and its duration, identifying potential risks, and strategies to mitigate them.
   • Designing the Database Schema. Designing a robust database schema is crucial for a functional IMS. It’s about creating a blueprint for the database structure, detailing tables for products, categories, suppliers, and transactions.
   • Implementing System Functionality. With the database schema in place, you move on to implementing the IMS’s system functionality. This step involves developing and integrating features allowing efficient inventory entry and tracking, such as product entry forms and real-time updates.

8. www.halfnine.com › blog › postInventory Database 101: Your Guide to Understanding and ...

   www.halfnine.com › blog › post

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   Apr 30, 2024 · To begin designing an effective inventory database, it is crucial to identify all relevant entities such as Product, Location, Warehouse, Inventory, Provider, Order, Customer, and Delivery. Understanding the relationships between these entities, such as the one-to-many connections between Provider and Order or Product and Inventory, is fundamental.

9. Videos

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10. thefuturewarehouse.com › logistics › inventoryHow to design database for inventory management system

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    Mar 19, 2023 · To design a database for an inventory management system, you need to identify the key data entities and relationships, create a data model, and then implement the database using a database management system (DBMS).

11. www.cockroachlabs.com › blog › inventory-managementInventory management reference architecture - Cockroach Labs

    www.cockroachlabs.com › blog › inventory-management

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    Jan 25, 2024 · An inventory database that stores all metadata related to product inventory, including tables with SKU descriptions, product availability, stock locations, etc. This is our source-of-truth database for inventory management.