Data Types in SQL with Examples

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How to handle mixed data types?
Common pitfalls with varchar in SQL
Unique SQL data types explained

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Different Data Types in SQL
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SQL Data Types for MySQL, SQL Server, and MS Access
https://www.w3schools.com/sql/sql_datatypes.asp
SQL Data Types (With Examples)
https://www.programiz.com/sql/data-types
SQL Data Types - GeeksforGeeks
https://www.geeksforgeeks.org/sql-data-types/
In SQL, each column in a table is assigned a specific data type that defines the kind of data it can store. This helps SQL understand how to interact with the data and ensures data integrity. The data types can vary across different database systems, but they generally fall into several broad categories: numeric, string, date and time, and others.
Numeric Data Types
Numeric data types are used to store numbers. They can be further divided into exact and approximate numeric types.
Exact Numeric Types: These include INT, BIGINT, SMALLINT, TINYINT, DECIMAL, and NUMERIC. For example, INT can store whole numbers between -2,147,483,648 and 2,147,483,647.
Approximate Numeric Types: These include FLOAT and REAL. For instance, FLOAT can store floating-point numbers with a precision specified by the user.
String Data Types
String data types are used to store text. They can be fixed-length or variable-length.
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Programiz
https://www.programiz.com › sql › data-typesAistrigh an toradh seo
SQL Data Types (With Examples) - Programiz
In SQL, each column has a data type that defines the kind of data that a column can store. In this tutorial, you will learn about Data Types in SQL with the help of examples.
W3School
https://www.w3schools.com › sql › sql_datatypes.aspAistrigh an toradh seo
SQL Data Types for MySQL, SQL Server, and MS Access
An SQL developer must decide what type of data that will be stored inside each column when creating a table. The data type is a guideline for SQL to understand what type of data is …
Great Learning
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Data Types in SQL with Examples - Great Learning
2 Iúil 2025 · You can use SQL data types to store numbers, text, dates, and more. This guide shows you how to use common SQL data types for your database.
GeeksForGeeks
https://www.geeksforgeeks.org › sql › sql-…Aistrigh an toradh seo
SQL Data Types - GeeksforGeeks
11 Samh 2025 · In SQL, each column must be assigned a data type that defines the kind of data it can store, such as integers, dates, text, or binary values. Choosing the correct data type is crucial for data integrity, query performance and efficient indexing.
Built In
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SQL Data Types With Examples - Built In
19 Márta 2025 · SQL uses various data types for handling alphanumeric characters, numeric values and date and time values. Here are some of the main SQL data types to know and when to use them.
WsCube Tech
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Data Types in SQL: All Types With Examples
22 MFómh 2025 · This is the complete tutorial on SQL Data Types. Learn about all data types in SQL with syntax and examples. Test your knowledge with a quiz. Read now.
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SQL Data Types Explained with Examples – Beginner’s ...
6 Lún 2025 · Learn SQL data types with clear examples, best practices, and conversion tips. Understand INT, VARCHAR, DATE, JSON, and more for better SQL performance.
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Understanding SQL Data Types: A Complete Guide
18 Meith 2025 · This article provided a complete overview of SQL data types, starting with their fundamental impact on performance, integrity, and storage. We covered every major category in detail, from numeric and string types to specialized ones like JSON and UUID.
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SQL Data Types
19 Ean 2025 · This tutorial introduces you to the most commonly used SQL data types including character string, numeric, and date time types.
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SQL Data Types: Syntax, Usage, and Examples
Learn SQL data types with syntax and examples. Understand INT, VARCHAR, DATE, BOOLEAN, and more to optimize storage, enforce integrity, and improve performance.

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A SQL data type specifies the type of data that a column can hold. For example, a column storing ages needs a numeric data type. A column for names needs a text data type. SQL data types are important because they help in: Data Integrity: They prevent you from putting the wrong kind of data into a column. You cannot store text in a number column.
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Data Types in SQL with Examples - Great Learning
mygreatlearning.com·https://www.mygreatlearning.com/blog/sql-data-types/
We use SQL data types to define the kind of values a column can store, such as numbers, text, dates, or binary data. Choosing the correct data type helps maintain accuracy, prevents invalid entries, and ensures that the database handles information correctly. Using proper SQL data types also improves performance and storage efficiency.
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Data Types in SQL: All Types With Examples
wscubetech.com·https://www.wscubetech.com/resources/sql/data-types
Numeric values are stored in the columns with the type of numbers, typically referred to as NUMBER, INTEGER, REAL, and DECIMAL. The following are the SQL numeric data types: The DECIMAL data type is used to store exact numeric values in the database e.g., money values. The following defines a column with the DECIMAL data type:
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SQL Data Types
sqltutorial.org·https://www.sqltutorial.org/sql-data-types/
There are different types of data types that can be used in a database table. Each data type will define a data type in a column. Data types can be used based on the types of databases the user is using, like MySQL, PostgreSQL, SQL Server, and Oracle.
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SQL Data Types Explained with Examples – Beginner’s Guide 2025
intellipaat.com·https://intellipaat.com/blog/tutorial/sql-tutorial/sql-data-types/
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SQL Data Types for MySQL, SQL Server, and MS Access

https://www.w3schools.com/sql/sql_datatypes.asp

SQL Data Types (With Examples)

https://www.programiz.com/sql/data-types

SQL Data Types - GeeksforGeeks

https://www.geeksforgeeks.org/sql-data-types/

What is a SQL data type?

Why do we use SQL data types?

What data types are stored in a SQL database?

What data types can be used in a database table?