The data type of a column defines what value the column can hold: integer, character, money, date and time, binary, and so on.

Jun 29, 2010 · Storing boolean values as a character data type like char(1) or varchar(5) is also possible, but that is much less clear, has more storage/network overhead, and requires CHECK …

Nov 28, 2022 · The SQL Boolean data type is not included in SQL Server. Other databases like Oracle and MySQL include the Boolean data type that accepts the values of TRUE, and FALSE. SQL …

Sep 23, 2025 · By the end of this guide, you will know whether the BOOLEAN data type exists in SQL, how to use/implement it in MySQL, PostgreSQL, SQL Server, and Oracle, and why it is important.

Now that you understand how Boolean data types are implemented in SQL Server and MySQL, let us explore how to handle Boolean data in SQL, including filtering and querying based on Boolean columns.

Nov 18, 2025 · In the SQL Server Database Engine, each column, local variable, expression, and parameter has a related data type. A data type is an attribute that specifies the type of data that the …

Use a BOOLEAN expression in a SQL statement, except as an argument to a PL/SQL function invoked in a SQL query, or in a PL/SQL anonymous block. An argument to a PL/SQL function invoked in a …

Aug 21, 2025 · In this tutorial, we’ll explore how MySQL represents Boolean values, what data types we can use instead, and which option makes the most sense for storing true/false data. 2. MySQL …

In this guide, we’ll break down the most commonly used data types in SQL — such as INT, VARCHAR, DATE, and BOOLEAN — with practical examples and use cases. Whether you’re a student, a …

Boolean values, representing truth or falsehood, are fundamental to programming and are essential for filtering, sorting, and manipulating data. Understanding how to work with these values in SQL is …