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Client APIs and toolsYou can use the HCL OneDB™ implementation of client APIs to develop applications for HCL OneDB™ database servers.
ESQL/C GuideThe topics explain how to use HCL OneDB™ ESQL/C, the HCL OneDB™ implementation of Embedded Structured Query Language (SQL) for C (ESQL/C), to create client applications with database-management capabilities. The HCL® OneDB® ESQL/C Programmer's Manual explains how to use HCL OneDB™ ESQL/C, the HCL OneDB™ implementation of Embedded Structured Query Language (SQL) for C (ESQL/C), to create client applications with database-management capabilities.
What is HCL OneDB™ ESQL/C?
HCL OneDB™ ESQL/C programming
Set and retrieve environment variables in Windows™ environmentsYou might change the settings of environment variables or create new variables to increase the flexibility of an application. Instead of assuming a particular environment configuration, you can define the environment at run time.
The InetLogin structureThe HCL OneDB™ ESQL/C client application in a Windows™ environment can use the InetLogin structure to set dynamically the configuration information that the application needs.

The InetLogin structure

The HCL OneDB™ ESQL/C client application in a Windows™ environment can use the InetLogin structure to set dynamically the configuration information that the application needs.

Important: HCL OneDB supports the InetLogin structure for compatibility with earlier versions only. For new development, it is recommended that you use the ifx_getenv() and ifx_putenv() functions instead.

This section provides the following information about InetLogin:

A description of the InetLogin structure, its fields, and header file
The precedence of configuration information that the client application sends when it establishes a connection
How to set the InetLogin fields directly