Jan 12, 2013 · Note that if you use LIKE to determine if a string is a substring of another string, you must escape the pattern matching characters in your search string. If your SQL dialect supports …

Dec 1, 2025 · SQL string functions help manipulate and format text data efficiently. They are widely used for cleaning, comparing, and extracting meaningful information from textual fields.

SQL Server has many built-in functions. This reference contains string, numeric, date, conversion, and some advanced functions in SQL Server.

Nov 18, 2025 · All built-in string functions except FORMAT are deterministic. This means they return the same value any time they are called with a specific set of input values.

In this article, we will explore SUBSTRING, PATINDEX and CHARINDEX string functions for SQL queries. While working with the string data, we perform various calculations, analytics, search, …

Mar 23, 2023 · If you’re working with a database, whether large or small, there might be occasions when you need to search for some entries containing strings. In this article, I’ll show you how to locate …

May 9, 2024 · This article presents SQL string functions you can use to manipulate textual or string values. Follow examples and get recommendations for further reading.

Mar 26, 2025 · In this tutorial, we’ll look at querying rows that contain given words or phrases in SQL. We tested our examples on MS SQL Server 2022, PostgreSQL 14, and MySQL 8 databases.

Mar 5, 2024 · In this article, I’ll share the one function I used to remove those pesky numeric prefixes. We’ll examine how people have used LTRIM and RTRIM for years. Also, there is a little-known …

String matching in SQL provides powerful tools for searching and filtering data based on textual patterns, making it a crucial aspect of database querying and analysis. The specific techniques and …