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Client APIs and tools
You can use the HCL Informix® implementation of client APIs to develop applications for Informix database servers.
GLS User's Guide
The Informix® GLS User's Guide describes the Global Language Support (GLS) feature available in Informix products.
Appendix
This section contains additional reference information.
Manage GLS files
These topics describe the files provided for GLS, which are executable only.
Remove unused files
HCL Informix® products contain the GLS files.
Remove locale and code-set-conversion files
To save disk space, you might want to keep only those files that you intend to use.

Client APIs and tools
You can use the HCL Informix® implementation of client APIs to develop applications for Informix database servers.
- Change Data Capture API Programmer's Guide
  The Informix® Change Data Capture API Programmer's Guide describes how to program applications to process changed data from HCL Informix databases using the Informix Change Data Capture API.
- Embedded SQLJ for HCL Informix®
  The Informix® Embedded SQLJ User's Guide contains information about using Informix Embedded SQLJ.
- ESQL/C Guide
  The Informix® ESQL/C Programmer's Manual explains how to use Informix ESQL/C, the Informix implementation of Embedded Structured Query Language (SQL) for C (ESQL/C), to create client applications with database-management capabilities.
- GLS User's Guide
  The Informix® GLS User's Guide describes the Global Language Support (GLS) feature available in Informix products.
  - GLS fundamentals
    The Global Language Support (GLS) feature lets Informix® products handle different languages, cultural conventions, and code sets for Asian, African, European, Latin American, and Middle Eastern countries.
  - GLS environment variables
    HCL Informix® products establish the client, database, and server locales with information from GLS-related environment variables and from data that is stored in the database.
  - SQL features
    These topics explain how the GLS feature affects the Informix® implementation of SQL.
  - Database server features
    These topics describe how the GLS feature affects the database server.
  - General SQL API features (ESQL/C)
    These topics explain how the GLS feature affects applications that you develop with the Informix® Client Software Development Kit.
  - Informix® ESQL/C features
    These topics explain how the GLS feature affects Informix® ESQL/C, an SQL application programming interface (API).
  - Appendix
    This section contains additional reference information.
    - Manage GLS files
      These topics describe the files provided for GLS, which are executable only.
      - Access GLS files
        HCL Informix® products access the GLS files to obtain locale-related information.
      - GLS locale files
        The locale file defines a GLS locale. It describes the basic language and cultural conventions that are relevant to the processing of data for a given language and territory.
      - Other GLS files
        In addition to GLS locale files, HCL Informix® products might also use other GLS files.
      - Remove unused files
        HCL Informix® products contain the GLS files.
        Remove locale and code-set-conversion files
        To save disk space, you might want to keep only those files that you intend to use.
        Remove code-set files
        The source version of code-set files (.cm) are provided as online documentation for the locales and code-set conversions that use them. Because HCL Informix® products do not access source code-set files, you can safely remove them.
      - The glfiles utility (UNIX™)
        To comply with MS-DOS 8.3 legacy format for file names, HCL Informix® products use condensed file names to store GLS locales and code-set-conversion files.
- API
  The Informix® GLS API Programmer's Guide describes the global language support (GLS) application programming interface (API) available in Informix ESQL/C and HCL Informix DataBlade® modules.
- Informix® Object Interface for C++ Guide
  The Informix® Object Interface for C++ Programmer's Guide describes how to develop HCL Informix client applications by using the object-oriented C++ programming language.
- Informix® ODBC Driver Guide
  The Informix® ODBC Driver Programmer's Manual serves as a user guide and reference for Informix ODBC Driver, which is the Informix implementation of the Microsoft™ Open Database Connectivity (ODBC) interface, Version 3.0.
- .NET provider options
  The Data Server Provider for .NET DB2® provider option is the preferred Informix® provider for developing new applications.
- Informix® JDBC Driver Guide
  The Informix® JDBC Driver Programmer's Guide describes how to install, load, and use Informix JDBC Driver to connect to the Informix database from within a Java™ application or applet.
- Informix International Language Supplement (ILS) User Guide
  These topics include information about the translated user interface files for Informix® UNIX™ products, locales, and code set conversion tables
- Informix® OLE DB Provider Guide
  The Informix® OLE DB Provider Programmer's Guide describes the software requirements for using Informix OLE DB Provider, show how to install and configure the provider for your use, and explain how to use Informix OLE DB Provider to enable client applications, such as ActiveX Data Object (ADO) applications and web pages, to access data on the Informix server.

Remove locale and code-set-conversion files

To save disk space, you might want to keep only those files that you intend to use.

These topics describe which of these files you can safely remove from your HCL Informix® installation. You can safely remove the following GLS files from your HCL Informix® installation:

For those locales that you do not intend to use, you can remove locale source and object files (.lc and .lco) from the subdirectories of the lcX subdirectory in your HCL Informix® installation.
For more information about the lcX path name, see Locale-file subdirectories.
For those code-set conversions that you do not intend to use, you can remove code-set-conversion source and object files (.cv and .cvo) from the subdirectories of the cvY subdirectory in your HCL Informix® installation.
For more information about the cvY path name, see Code-set-conversion file names.

Restriction: Do not remove the locale object file for the U.S. 8859-1 English locale, 0333.lco in the en_us locale-file subdirectory. In addition, do not remove the Code-Set Name-Mapping file, registry. HCL Informix® products use these files for the language processing of all locales.

Because HCL Informix® products do not access source versions of locale and code-set conversion files, you can safely remove them. These files, however, provide useful online documentation for the supported locales and code-set conversions. If you have enough disk space, it is recommended that you keep these source files for the GLS locales (*.lc) and code-set conversions (*.cv) that your HCL Informix® installation supports.