Welcome
Client APIs and tools
You can use the HCL Informix® implementation of client APIs to develop applications for Informix database servers.
Informix® JDBC Driver Guide
These topics describe how to install, load, and use Informix® JDBC Driver to connect to the Informix database from within a Java™ application or applet.
Perform database operations
Parameters, escape syntax, and unsupported methods
The CallableStatement OUT parameters
Server and driver restrictions and limitations
Server restrictions

HCL Informix® V14.10 documentation
Welcome to the documentation for HCL Informix® 14.10 and related client tools and products. The current fix pack level of Informix is 14.10.xC13.
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 DataBlade® 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 14.10 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.
- Change Data Capture API Programmer's Guide
  These topics describe how to program applications to process changed data from HCL Informix® databases using the Informix Change Data Capture API.
- Embedded SQLJ for HCL Informix®
  This set of topics contains information about using Informix® Embedded SQLJ.
- ESQL/C Guide
- GLS User's Guide
  These topics describe the Global Language Support (GLS) feature available in Informix® products.
- Informix® GLS API
  These topics describe 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
  These topics describe how to develop HCL Informix® client applications by using the object-oriented C++ programming language.
- Informix® ODBC Driver Guide
  These topics serve 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.
- 4GL
  This topic provides a link to the Informix 4GL documentation.
- Informix® JDBC Driver Guide
  These topics describe 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
  These topics describe 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.
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 DataBlade® 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.
Informix PDF guides

Server restrictions

This topic describes the restrictions imposed by different versions of the 9.x and later HCL Informix® server. It also describes enhancements made to the JDBC driver and the restrictions imposed by it.

Versions 9.2x and 9.3x of Informix® have the following requirements and limitations concerning OUT parameters:

Only a function can have an OUT parameter. A function is defined as a UDR that returns a value. A procedure is defined as a UDR that does not return a value.
There can be only one OUT parameter per function.
The OUT parameter has to be the last parameter.
You cannot specify INOUT parameters.
HCL Informix®, Version 10.0, or later allows you to specify INOUT parameters (C, SPL, or Java™ UDRs).
The server does not correctly return the value NULL for external functions.
You cannot specify OUT parameters that are complex types.
You cannot specify C and SPL routines that use the RETURN WITH RESUME syntax.

These restrictions, for server versions 9.2x and 9.3x, are imposed whether users create C, SPL, or Java™ UDRs.

The functionality of the Informix®, Version 9.4 allows:

Any parameters to be OUT parameters for C, SPL, or Java™ UDRs
User-defined procedures with no return value to have OUT parameters
Multiple OUT parameters

You cannot specify INOUT parameters.

For more information about UDRs, see Informix® User-Defined Routines and Data Types Developer's Guide and J/Foundation Developer's Guide.