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SQL programmingYou can use the HCL Informix® implementation of the SQL language to develop applications for Informix® database servers.
Guide to SQL: ReferenceThe Informix® Guide to SQL: Reference contains the reference information for the system catalog tables, data types, and environment variables of the HCL Informix® dialect of the SQL language, as implemented in HCL Informix®. These topics also include information about the stores_demo, sales_demo, and superstore_demo databases that are included with HCL Informix®.
Environment variablesVarious environment variables affect the functionality of your HCL Informix® products. You can set environment variables that identify your terminal, specify the location of your software and define other parameters.
Using environment variables on Windows™
Where to set environment variables on Windows™

Where to set environment variables on Windows

You can set environment variables in several places on Windows™, depending on which HCL Informix® application you use.

Environment variables can be set in several ways, as described in Setting environment variables on Windows.

The SET ENVIRONMENT statement of SQL can set certain routine-specific environment options. For more information, see the description of SET ENVIRONMENT in the Informix Guide to SQL: Syntax.

To use client applications such as Informix ESQL/C or the Schema Tools on Windows environment, use the Setnet32 utility to set environment variables. For information about the Setnet32 utility, see the Informix Client Products Installation Guide for your operating system.

In Informix ESQL/C, you can set supported environment variables within an application with the ifx_putenv() function and retrieve values with the ifx_getenv() function, if your Windows system supports them. For more information about ifx_putenv() and ifx_getenv(), see the Informix ESQL/C Programmer's Manual.

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