While Prisma gradually adds various features, PostgreSQL still has a lot of functionalities that Prisma does not support yet. One of them is range types. In this article, we learn how to use a column type not supported by Prisma and how to make raw SQL queries. Range types Sometimes, when working with our database, […]
A foreign key is a column that connects two tables. A constraint keeps this connection in check, and PostgreSQL ensures the foreign keys point to the correct row. Therefore, we need to think about what happens when we delete a record that’s connected this way. In this article, we learn more about foreign keys and […]
We can learn much about how users use our app by looking at our database. With this information, we can improve the experience of the users of our application. Luckily, PostgreSQL and Prisma make it easy to collect different kinds of data statistics. In this article, we learn how to use them to group and […]
Database normalization is a common topic in database design discussions. However, it’s usually explained using complicated terms, making it hard to understand. In this article, we’ll explain what normalization means and give examples using Prisma and PostgreSQL. The goal of database normalization is to enhance the accuracy and minimize the duplication of our data. We […]
Saving date and time in our database can be tricky, but it’s crucial to do it correctly. In this article, we address this problem using PostgreSQL and Kysely. We also explore time zones and how to handle them when designing our database. Dates in PostgreSQL We can determine how our database handles dates by examining […]
When working on our REST APIs, we usually focus on implementing the four fundamental operations: creating, reading, updating, and deleting (CRUD). Deleting entities is a common feature in many web applications. The simplest way to do it is by permanently deleting rows from the database. In this article, we use Kysely to explore the idea […]
PostgreSQL is great for structured data and is known for its reliability in maintaining data organization and consistency. On the other hand, MongoDB stores data in flexible JSON-like documents, making it ideal for data with varying attributes and evolving requirements. Using SQL has a lot of advantages over MongoDB, but we might need some flexibility […]
PostgreSQL outshines various other SQL databases with its feature set. Unlike most SQL databases, PostgreSQL offers extensive support for array columns. Using them, we can store collections of values within a single column without creating separate tables. In this article, we explore the capabilities of arrays in PostgreSQL and implement examples using Kysely. Creating the […]
SQL indexes act like guides in our database and help us retrieve the data faster. The bigger our database is, the more emphasis we need to put on its performance. By using indexes, we can help our PostgreSQL database retrieve the data faster. In this article, we learn what indexes are and how to create […]
So far, when working with Kysely, we fetched all rows from our tables. However, this might not be the best solution when it comes to performance. A common approach is to query the data in parts and present the users with separate pages or infinite scrolling. We implement pagination in this article with NestJS, PostgreSQL, […]
