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Client APIs and toolsYou can use the HCL Informix® implementation of client APIs to develop applications for Informix® database servers.
ESQL/C GuideThe 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.
Database server communication
Informix® librariesThese topics describe how to link the static, shared, and thread-safe HCL Informix® general libraries with your Informix® ESQL/C application.
Create thread-safe ESQL/C applications
Program a thread-safe ESQL/C applicationThis section provides useful hints for how to create thread-safe Informix® ESQL/C applications.
DCE restrictions (UNIX™)

DCE restrictions (UNIX)

A thread-safe Informix® ESQL/C code is also subject to all restrictions that the DCE thread package imposes. DCE requires that all applications that use the DCE thread library are ANSI compliant. This section lists some of the restrictions to keep in mind when you create a thread-safe Informix ESQL/C application. For more information, see your DCE documentation.

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