Welcome
Installing
These topics describe how to install HCL Informix® database servers, client products, and modules.
DataBlade modules
These topics describe how to install HCL Informix® modules.
Module Installation and Registration Guide
This publication explains how to install modules.
Registering with the SYSBldPrepare( ) function
Upgrade or revert a module

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.
Installing
These topics describe how to install HCL Informix® database servers, client products, and modules.
- HCL Informix® server
  These topics describe how to install HCL Informix® database servers.
- Client products
  These topics describe how to install HCL Informix® client products.
- DataBlade modules
  These topics describe how to install HCL Informix® modules.
  - Module Installation and Registration Guide
    This publication explains how to install modules.
    - Installing modules
    - Autoregistration of a standard module in a database
    - Registering with the SYSBldPrepare( ) function
      - Preparing to call the SYSBldPrepare( ) function
      - Register a module
        To register a module, run the SYSBldPrepare( ) function with the module reference and the 'create' arguments.
      - Register a set of modules
      - Unregister a module
        To unregister a module, run the SYSBldPrepare( ) function with the module reference and the 'drop' arguments.
      - Upgrade or revert a module
        Upgrade to a higher version
        To upgrade a module to a higher version, run the SYSBldPrepare( ) function with the module reference and the 'create' arguments.
        Revert to an earlier version
        To revert a module to an earlier version, run the SYSBldPrepare( ) function with the module reference and the 'create' arguments.
      - View version information of SYSBldPrepare( )
    - Troubleshooting registration problems
- Informix® warehouse accelerator
  These topics describe how to install HCL Informix® warehouse accelerator.
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.

Upgrade or revert a module

You can use the SYSBldPrepare( ) function to upgrade a registered module to a higher version, or to revert to a lower version. Like , the SYSBldPrepare( ) function does not allow more than one version of the same module to be registered in the same database. When you register the replacement version, you do not need a second call to SYSBldPrepare( ) to unregister a module that you have replaced with another version.

Before you can change the registered version of a module, the other version must be installed in the $INFORMIXDIR/extend directory.