ISO/IEC 9075-15:2023/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 9075-15:2023 - Information technology — Database languages SQL — Part 15: Multidimensional arrays (SQL/MDA)
• Effective Date: 07-Jan-2026

Overview

ISO/IEC 9075-15:2023/Cor 1:2026 is a technical corrigendum to the ISO/IEC 9075-15:2023 standard, published by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). This document focuses on corrections and clarifications to "Information technology - Database languages SQL - Part 15: Multidimensional arrays (SQL/MDA)." Prepared by ISO/IEC JTC 1, Subcommittee SC 32, the corrigendum enhances the accuracy and implementation of multidimensional arrays (MD-arrays) within SQL database systems.

Key Topics

• Clarification of Multidimensional Array Definitions: The corrigendum refines the definition of MD-extents and their relationships within SQL/MDA. It clarifies when one MD-extent is considered within another, ensuring precise understanding for database implementers.
• Syntax and Rule Corrections: Adjustments are made to rules regarding the maximum number of MD-axes, emphasizing that the upper limit is implementation-defined. This provides flexibility for SQL engine developers and database administrators.
• Set Clause List Evaluation: Updates correct and specify the function and rules when evaluating a <set clause list> as part of array data manipulation. This includes new subclause signatures and more detailed guidance on handling exceptional cases, such as null values in MD-arrays.
• Accurate Iteration and Error Handling: Revisions in the general rules improve the clarity of iteration logic over multidimensional arrays. Enhanced error conditions for misaligned source and target MD-extents help ensure robust data integrity.
• Symbol and Subscript Corrections: The corrigendum amends various symbols, subscripts, and notation inconsistencies to match the formal specification and improve unambiguous implementation.

Applications

ISO/IEC 9075-15:2023/Cor 1:2026 is essential for:

• Database Management System (DBMS) Developers: Provides up-to-date corrections, ensuring reliable support for multidimensional arrays as standardized by SQL/MDA, improving compatibility and reducing implementation errors.
• Enterprise Solutions: Organizations leveraging SQL-based analytical tools and complex data warehousing systems benefit from robust multidimensional array support for tasks such as scientific computations, financial modeling, and business intelligence.
• Academic and Research Institutions: Facilitates advanced research and development in data management, analytics, and database optimization, where multidimensional data storage and manipulation are central.

Related Standards

• ISO/IEC 9075 Family: This corrigendum is directly related to the broader ISO/IEC 9075 series of standards governing SQL database languages.
  • ISO/IEC 9075-1: Framework (SQL/Foundation)
  • ISO/IEC 9075-2: SQL/Framework
  • ISO/IEC 9075-15: SQL/MDA - Multidimensional arrays
• ISO/IEC JTC 1/SC 32 Standards: Focused on data management and interchange, these standards establish best practices and foundational rules for interoperable and efficient information systems.
• ICS 35.060: International Classification for Standards - Information Technology

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ISO/IEC 9075-15:2023/Cor 1:2026 enhances the clarity, reliability, and interoperability of SQL databases using multidimensional arrays. Adopting these corrections supports standard-compliant implementations and future-proofs modern data management solutions. For official access and further information, visit iso.org.

International
Standard
ISO/IEC 9075-15
Second edition
Information technology — Database
2023-06
languages SQL —
TECHNICAL
Part 15:
CORRIGENDUM 1
Multidimensional arrays (SQL/
2026-08
MDA)
TECHNICAL CORRIGENDUM 1
Technologies de l'information — Langages de base de données
SQL —
Partie 15: Tableaux multi-dimensionnels (SQL/MDA)
RECTIFICATIF TECHNIQUE 1
Reference number
ISO/IEC 9075-15:2023/Cor. 1:2026(en) © ISO/IEC 2026

ISO/IEC 9075-15:2023/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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Published in Switzerland
© ISO/IEC 2026 – All rights reserved
ii
ISO/IEC 9075-15:2023/Cor.1:2026(en)
Technical Corrigendum 1 to ISO/IEC 9075-15:2023 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 9075-15:2023/Cor. 1:2026(en)
4 Concepts
4.5 Collectiontypes
4.5.2 MD-arrays
1. Rationale: Correctthedefinitionof“within”.
th
Replacethe4 paragraphwith:
AnMD-extentD,denotedas[DN (DLO :DHI),.,DN (DLO :DHI)],iswithinanotherMD-extent
1 1 1 d d d
E,denotedas[EN (ELO :EHI),.,EN (ELO :EHI)],whereeistheisMD-dimensionofE,ifd≤
1 1 1 e e e
e,and,foralli,1(one)≤i≤d,allofthefollowingaretrue:
10 Additionalcommonelements
10.1
1. Rationale: Allowthemaximumtobespecified.
ReplaceSyntaxRule3)b)with:
3) .
b) Themaximumnumberofisimplementation-defined(IL203).dshallbeless
thanorequaltothismaximumvalue.
14 Additionaldatamanipulationrules
14.1 Evaluatinga ...