Welcome
Product overview
HCL Informix® is a fast and scalable database server that manages traditional relational, object-relational, and dimensional databases. Its small footprint and self-managing capabilities are suited to embedded data-management solutions.
Release information
Review the release notes, documentation notes, and machine notes for essential information about an HCL Informix® product or fix pack.
Client SDK
These are the release, documentation, and machine notes for HCL Informix® Client Software Development Kit . Information about fixed and known defects is included in the release notes.
15.0.0.1
These are the release, documentation, and machine notes for HCL® Informix® Client Software Development Kit (Client SDK) version 15.0.0.1.
Machine notes
These are the machine notes for HCL® Informix® Client Software Development Kit (Client SDK) version 15.0

HCL Informix® V15.0.0 documentation
Welcome to the documentation for HCL Informix® 15.0.0 and related client tools and products.
Product overview
HCL Informix® is a fast and scalable database server that manages traditional relational, object-relational, and dimensional databases. Its small footprint and self-managing capabilities are suited to embedded data-management solutions.
- What's new in HCL Informix®
  HCL Informix®15.0.0 has new, changed, and removed features.
- Tutorials and examples
  You can learn how to use some of the features and functionality of HCL Informix® by using tutorials, examples, and recorded demonstrations.
- Accessibility features for HCL Informix® products
  HCL strives to provide products with usable access for everyone, regardless of age or ability.
- Compliance with industry standards
  HCL Informix® products are compliant with various standards.
- Assumptions about your locale
  HCL Informix® products can support many languages, cultures, and code sets. All the information related to character set, collation and representation of numeric data, currency, date, and time that is used by a language within a given territory and encoding is brought together in a single environment, called a Global Language Support (GLS) locale.
- Demonstration databases
  Demonstration databases that contain sample data are provided with the HCL Informix® database server.
- Release information
  Review the release notes, documentation notes, and machine notes for essential information about an HCL Informix® product or fix pack.
  - Informix
    These are the release, documentation, and machine notes for HCL Informix®. Information about fixed and known defects is included in the release notes.
  - Client SDK
    These are the release, documentation, and machine notes for HCL Informix® Client Software Development Kit . Information about fixed and known defects is included in the release notes.
    - 15.0.0.2
      These are the release, documentation, and machine notes for HCL® Informix® Client Software Development Kit (Client SDK) version 15.0.0.2.
    - 15.0.0.1
      These are the release, documentation, and machine notes for HCL® Informix® Client Software Development Kit (Client SDK) version 15.0.0.1.
      - Release notes for HCL Informix® Client Software Development Kit for AIX and Linux 15.0.0.1
      - Release notes for HCL Informix® Global Language Support (GLS), 8.0.0.1
        The Release notes provide a list of useful topics and links for when you install HCL® Informix® GLS library with an Informix product or fix pack.
      - Release notes for HCL Informix® Client Software Development Kit for Windows Operating Systems, 15.0.0.1
      - Machine notes
        These are the machine notes for HCL® Informix® Client Software Development Kit (Client SDK) version 15.0
        ESQL/C Machine Notes
        GLS API Machine Notes
        ODBC Driver Machine Notes
        Informix .NET Core Provider Machine Notes
    - 15.0.0.0
      These are the release, documentation, and machine notes for version 15.0.0.
- GDPR Compliance Information
  This document is for PID(s): 5725-D14, 5725-F59, 5725-A39, 5725-A40, 5737-B60, 5737-B86
Installing
These topics describe how to install HCL Informix® database servers, client products, and modules.
Administering
In addition to administering the database server, you can tune performance, replicate data, and archive data.
Migrating and upgrading
You can upgrade to the 15.0.0 release of HCL Informix® or migrate from other database servers to Informix. Upgrading is an in-place migration method that uses your existing hardware and operating system software. Some changes to the Informix database server can affect upgrading from a previous release.
Client APIs and tools
You can use the HCL Informix® implementation of client APIs to develop applications for Informix database servers.
Embedding Informix®
When you embed HCL Informix®, you can use enterprise-class high-availability and high performance with embeddability features such as easy programmability, a small disk and memory footprint, and silent deployment.
Extending Informix®
Beyond standard relational database objects, HCL Informix® can be extended to handle specialized data types, access methods, routines, and other objects. Informix includes many built-in extensions that are fully integrated in the database server. Informix also provides modules, which are packages of extended database objects for a particular purpose and that are installed separately from the database server. Alternatively, you can create your own user-defined objects for Informix.
Data warehousing
In addition to designing and implementing Informix® dimensional databases, you can use tools to create data warehouse applications and optimize your data warehouse queries.
Designing databases
The first step in creating a relational database is to construct a data model, which is a precise, complete definition of the data you want to store. After you prepare your data model, you must implement it as a database and tables. To implement your data model, you first select a data type for each column and then you create a database and tables and populate the tables with data. You can also implement fragmentation strategies and control access to your data.
JSON compatibility
You can use the popular JSON-oriented query language created by MongoDB to interact with data stored in HCL Informix®.
Security
You can secure your Informix® database server and the data that is stored in your Informix databases. You can encrypt data, secure connections, control user privileges and access, and audit data security.
SQL programming
You can use the HCL Informix® implementation of the SQL language to develop applications for Informix database servers.
Troubleshooting HCL Informix®
Several troubleshooting techniques, tools, and resources are available for resolving problems that you encounter in your HCL Informix® database server environment.

Machine notes for HCL Informix® , version 15.0

These are the machine notes for HCL® Informix® Client Software Development Kit (Client SDK) version 15.0

To view the notes, expand the categories in the contents pane in the Release information subtopic under the Product overview topic.