ISO/IEC 19075-1:2021 provides guidance for the use of database language SQL in relation to XQuery regular expressions, helping teams interpret and apply the specification more consistently in technical documentation, implementation review, and validation work. For organizations evaluating SQL-based database behavior, it can support clearer technical assessment, documented evaluation, and compliance workflows by reducing ambiguity around regular-expression use. As part of the ISO/IEC 19075 series, ISO/IEC 19075-1:2021 is most relevant where database language conformance, interoperability, and repeatable implementation practices matter.

What is ISO/IEC 19075-1:2021?

ISO/IEC 19075-1:2021 is a supporting technical reference focused on guidance for using database language SQL with XQuery regular expressions. Its purpose is to help readers understand how the relevant language features are intended to be used and evaluated in a standards-based environment. In engineering and compliance settings, it can be useful for technical review, product evaluation, and verification activities where database behavior must be aligned with documented language rules and implementation expectations.

Applications of ISO/IEC 19075-1:2021

This document is commonly relevant to software engineering teams, database implementers, test laboratories, and procurement groups assessing SQL-related capabilities. It may be used during technical validation of database products, preparation of conformity assessment evidence, and review of application code that depends on regular-expression handling within SQL environments. It can also support quality workflows where consistent interpretation of database language features is needed across development, testing, and operational environments.

Why is ISO/IEC 19075-1:2021 important?

Clear guidance on SQL and XQuery regular expressions helps reduce interpretation differences that can affect interoperability, test consistency, and implementation risk. For organizations performing technical validation or procurement review, the document can assist in comparing product behavior against defined language expectations and in preparing more reliable compliance documentation. It is particularly useful when repeatable results, documented evaluation, and operational consistency are needed across database platforms or software releases.

• Guidance for applying SQL language features related to XQuery regular expressions
• Useful for implementation review, test planning, and database product evaluation
• Supports conformity assessment preparation and documentation of technical behavior
• Helps reduce ambiguity in interoperability and validation workflows
• Part of the ISO/IEC 19075 series and aligned with standards-based database practice