ISO/IEC 9075-14:2023/Cor 1:2026

• Status: Published
• Publication Date: 02-Aug-2026
• ICS: 35.060 - Languages used in information technology
• Technical Committee: ISO/IEC JTC 1/SC 32 - Data management and interchange
• Drafting Committee: ISO/IEC JTC 1/SC 32/WG 3 - Database language
• Current Stage: 6060 - International Standard published
• Start Date: 03-Aug-2026
• Completion Date: 03-Aug-2026

• Corrects: ISO/IEC 9075-14:2023 - Information technology — Database languages SQL — Part 14: XML-Related Specifications (SQL/XML)
• Effective Date: 07-Jan-2026

ISO/IEC 9075-14:2023/Cor 1:2026 is ISO and IEC’s Technical Corrigendum 1 to ISO/IEC 9075-14:2023, the SQL/XML part of the SQL database language standard. It corrects specific SQL/XML rules and feature relationships so implementers, test labs, and reviewers apply the same conformance text.

What does ISO/IEC 9075-14:2023/Cor 1:2026 specify?

ISO/IEC 9075-14:2023/Cor 1:2026 specifies corrections to the SQL/XML rules in ISO/IEC 9075-14:2023. The document is organized by the affected clauses and by the updated feature-dependency table.

Location	What it covers
Clause 10.23	Determination of an XQuery formal type notation
Clause 12.8	<SQL-invoked routine> conformance rules
Clause 25.3 and Table 22	Implied feature relationships of SQL/XML

These locations matter in practice because they affect how SQL/XML implementations decide nullability, how they validate XML-related parameter declarations, and how they declare feature support.

What are the key requirements of ISO/IEC 9075-14:2023/Cor 1:2026?

ISO/IEC 9075-14:2023/Cor 1:2026 changes three technical areas that affect implementation behavior and conformance claims.

• Clause 10.23 updates Syntax Rule 3) for determining an XQuery formal type notation. If S references a known not null column, the suffix is the zero-length string. This matters because an implementation can omit the nullable indicator when the column is already known to be not null.

• Clause 10.23 also allows the zero-length suffix when S is a <value expression> and Feature T101, “Enhanced nullability determination”, lets the implementation deduce that the value cannot be null. In practice, this means nullability can come from implementation-defined deduction, not only from an explicit column declaration.

• Clause 12.8 replaces Conformance Rule 5) for <SQL-invoked routine>. Without Feature X100, “Host language support for XML:CONTENT option”, conforming SQL languages must not contain an <SQL parameter declaration> whose <document or content> is CONTENT. This matters to vendors because XML content parameters are only allowed when the relevant host-language support is present.

• Clause 12.8 also replaces Conformance Rule 6). Without Feature X101, “Host language support for XML:DOCUMENT option”, conforming SQL languages must not contain an <SQL parameter declaration> whose <document or content> is DOCUMENT. This keeps routine declarations aligned with the XML document support that the implementation claims.

• Clause 25.3 adds rows to Table 22, “Implied feature relationships of SQL/XML”. The new rows connect XMLSerialize options, XMLtype options, and XMLValidate options to their underlying serialization, element, namespace, and schema-related capabilities. In practice, this tells implementers which lower-level features are implied when they claim a higher-level SQL/XML feature.

Who uses ISO/IEC 9075-14:2023/Cor 1:2026?

ISO/IEC 9075-14:2023/Cor 1:2026 is used by SQL database engine developers, XML/SQL tool vendors, conformance test developers, and quality or procurement teams checking supplier claims. They use it to update parser and validator behavior, review feature support statements, and align certification or audit checks with the corrected SQL/XML text.

What changed in ISO/IEC 9075-14:2023/Cor 1:2026 from the previous edition?

ISO/IEC 9075-14:2023/Cor 1:2026 is a technical corrigendum to ISO/IEC 9075-14:2023. It makes three stated changes: it refines the XQuery formal type notation rule in clause 10.23, it narrows the XML-related conformance rules for <SQL-invoked routine> in clause 12.8, and it adds missing implied feature dependencies in Table 22 under clause 25.3.

Which standards are used with ISO/IEC 9075-14:2023/Cor 1:2026?

ISO/IEC 9075-14:2023 is the base part corrected by this document. ISO/IEC 9075-14:2023/Cor 1:2026 should be read together with that edition, because the corrigendum amends specific SQL/XML clauses rather than replacing the whole part.

What does the ISO/IEC 9075-14:2023/Cor 1:2026 document contain?

ISO/IEC 9075-14:2023/Cor 1:2026 contains the correction text for three targeted areas of SQL/XML. It gives replacement wording for one syntax rule, replacement wording for two conformance rules, and added rows to Table 22 on implied feature relationships. The document is a maintenance update for implementation behavior, conformance checking, and feature-dependency mapping, not a full restatement of SQL/XML.

International
Standard
ISO/IEC 9075-14
Sixth edition
Information technology — Database
2023-06
languages SQL —
TECHNICAL
Part 14:
CORRIGENDUM 1
XML-Related Specifications (SQL/
2026-08
XML)
TECHNICAL CORRIGENDUM 1
Technologies de l'information — Langages de base de données
SQL —
Partie 14: Spécifications relatives au XML (SQL/XML)
RECTIFICATIF TECHNIQUE 1
Reference number
ISO/IEC 9075-14:2023/Cor. 1:2026(en) © ISO/IEC 2026

ISO/IEC 9075-14:2023/Cor. 1:2026(en)
© ISO/IEC 2026
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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© ISO/IEC 2026 – All rights reserved
ii
ISO/IEC 9075-14:2023/Cor.1:2026(en)
Technical Corrigendum 1 to ISO/IEC 9075-14:2023 was prepared by Joint Technical Committee ISO/IEC JTC
1, Information technology, Subcommittee SC 32, Data management and interchange.
© ISO/IEC 2026 – All rights reserved
iii
ISO/IEC 9075-14:2023/Cor. 1:2026(en)
10 Additionalcommonrules
10.23DeterminationofanXQueryformaltypenotation
1. Rationale: Correctlyidentifyimplementation-definedaspectsthataredependentonFeatureT101,
“Enhancednullabilitydetermination”,andremovetheduplicationofthoseaspects.
ReplaceSyntaxRule3)c)with:
3) .
c) IfSisacolumnreferencethatreferencesaknownnotnullcolumn,thenletSUFFIX
bethezero-lengthstring.
d) IfSisaandtheSQL-implementationsupportsFeatureT101,
“Enhancednullabilitydetermination”,andtheSQL-implementationcandeduceviaan
implementation-defined(IE011)rulethatthevalueofScannotbenull,thenletSUFFIX
bethezero-lengthstring.
12 Schemadefinitionandmanipulation
12.8
1. Rationale: CorrectlythescopeoftheConformanceRulestoeliminateundesirablerestrictions.
ReplaceConformanceRules5)and6)with:
5) InsertafterthelastCR: WithoutFeatureX100,“HostlanguagesupportforXML:CONTENT
option”,conformingSQLlangu
...