Data Types

Dominika Florczykowska

An Overview of MySQL Data Types

What data types are available in a MySQL database? In this article, you’ll learn about numeric data types, text data types, and much more! You may have seen our article about data types in SQL. Here, we focus on the MySQL data types. We will discuss the most commonly used ones: numeric, text, and date and time. If you are interested in the topic, be sure to check out our Data Types in SQL course.

Andrew Bone

Numeric vs. Decimal Data Types in SQL

In standard SQL, there is a slight difference between the NUMERIC and DECIMAL data types. However, in some variants of SQL, there is no difference! This article will clear up any confusion. In this article, I’ll explain the differences and similarities between SQL’s standard NUMERIC and DECIMAL data types. Then I’ll discuss how these data types work in common SQL dialects. We’ve already posted a more general article on SQL data types; this time, we’ll drill down further on just the DECIMAL and NUMERIC data types.

Martyna Sławińska

An Overview of PostgreSQL Data Types

It’s vital to know what you actually store in your database. That’s why every column has its data type. There are numerous PostgreSQL data types across various categories. Read on to see which data type suits which use case! In this article, we’ll go through the most common data types used in PostgreSQL. PostgreSQL, also called Postgres, is a well-known open-source object-relational database management system (DBMS). It is SQL-compliant, extensible, and includes all standard relational database features, such as database constraints, transactions, views, triggers, stored procedures, and more.

Aldo Zelen

Understanding Numerical Data Types in SQL

Working with databases of any kind means working with data. This data can take a couple of predefined formats. As you start on your learning path with LearnSQL.com, you will start to understand SQL's different data types. In this article, we will cover different variations of the SQL numeric data type. We'll also examine some functions that convert data from one type to another. Creating tables is the first step in any SQL coding project.

Aldo Zelen

How to Recognize SQL Text Data Type

How can you store textual information in database tables? Thanks to this post, you’ll learn the characteristics of every text data type in SQL Note: This post is intended for readers familiar with SQL data definition language (DDL) and the DDL CREATE statement. To learn more about DDL, check out LearnSQL.com. Most data types are classified as NUMERIC, CHARACTER, or DATE. In this post, we’re going to focus on each CHARACTER or text data type in SQL.