Mastering STRING_SPLIT in SQL Server: Cleanly Handling Comma‑Separated Values
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Working with comma-separated values in SQL Server used to require awkward loops, XML parsing, or custom functions. STRING_SPLIT changed that. It gives you a fast, native way to turn a delimited string into a rowset you can join, filter, or aggregate. Whether you're passing a list of IDs from .NET or storing multi-value fields in a legacy table, STRING_SPLIT lets you query them cleanly and efficiently. In this article, we’ll walk through how it works, how to trim values, how to join it to your tables, and the key differences between SQL Server versions.
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