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Learning sql on mysql vs postgresql9/20/2023 ![]() When we say transaction paradigm, what does it actually mean? Either a transaction fails completely or succeeds completely, such as a transfer on funds from one account to another.Ĭonsistency. This paradigm is used primarily by relational-based databases. The basic idea behind atomicity is that it supports a transaction paradigm. Definitions of the four properties are as follows:Ītomicity. It’s a property of relational databases that guarantees database validation and is quite reliable. The following list is certainly not an exhaustive list, but knowing these basic terms will assist you in choosing a database that’s right for your project.ĪCID is an acronym that stands for Atomicity, Consistency, Isolation, and Durability. Now that we are familiar with the main reasons we should use a database, let’s look at some important terms we need to know before making a database decision. Important terms to know before making a database decision How you want to access and use data will help you choose the database that will most suit your data and client needs. This will lead to higher sales, more traffic, and better targeted ads.ĭata collection and analysis is key for any business to survive in this big data era. Having a database to collect customer information, such as likes, dislikes, order history, or articles read, allows a business or organization to target their consumers more readily. How you organize that data will help you choose the database that will most suit your data and client needs.īusinesses thrive on data. With the organization of a database, you can learn a lot more about your data, as it makes that information readily available to assist decision making. The retail store example from above could have certainly used a computerized database to increase productivity and reduce the amount of manual tabulating. There are several different flavors of normalization, but the high level explanation is that it reduces redundancy and anomalies in your data. It was cumbersome, not without human error, and led to redundancies in records.Ī database with an inventory management system could have helped this company come into the 21st century and reduce the need for a bookkeeper and inventory reconciliation.Ī database assists in normalizing your data. In one of my first jobs, I recall using a system that used 5x7 ledger cards to keep track of customers, payments, and the rental inventory we carried in the warehouse. The type of data you are using help you choose the database that will most suit your data and client needs. When thinking of your database choice, what type of data do you need to be persisted? Having a database allows for session persistence so that a user can log in and stay logged in for an extended period of time. How would you feel if you were to visit a website, add items to a shopping cart, and navigate away from the site only to come back to an empty cart? A frustrating experience, I’m sure. Let’s take a deeper dive into the uses of a database. Databases are a basic foundation of software development, and they serve many purposes for building projects of all sizes and types. This question may be a bit obvious, but understanding why we need databases helps when it comes to choosing a database structure for your stack.
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