RegEx Functions I

Using REGEXP_COUNT to Count Strings in SQL Server 2025

We need to find out how many times certain strings appear in a column. We’ve used the LEN and REPLACE functions for years, but recently heard about REGEXP_COUNT and want to evaluate it, since we plan to upgrade to SQL Server 2025. How can we test this new feature?

Split strings by Regular Expressions in SQL Server 2025

SQL Server users have been asking for native regular expression support for over two decades. There are third-party Common Language Runtime (CLR) modules that offer this functionality, but these can be complicated to install and simply aren’t possible in some environments. I want to split a string using a regular expression instead of a static string. Will that be possible in SQL Server 2025, without CLR?

Using Regular Expressions to Convert PL/SQL code to T-SQL

When converting Oracle PL/SQL to T-SQL, there are a number of ways to do this, but this article shows us how this can be done with regular expressions in Management Studio.

How To Use Regular Expressions for Data Validation and Cleanup

You need to provide data validation at the server level for complex strings like phone numbers, email addresses, etc. You may also need to do data cleanup / standardization before moving it from source to target. Although SQL Server provides a fair number of string functions, the code developed with these built-in functions can become complex and hard to maintain or reuse.