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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.
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Link shared Informix® general libraries

Link shared Informix general libraries

Informix® ESQL/C can dynamically link a shared library, which places this library in shared memory. When the shared library is in shared memory, other Informix ESQL/C applications can also use it. Shared libraries are most useful in multiuser environments where only one copy of the library is required for all applications.

Important: To use shared libraries in your Informix ESQL/C application, your operating system must support shared libraries. Operating systems that support shared libraries include Sun and HP versions of UNIX™ and Windows™. You should be familiar with the creation of shared libraries and with the compile options that your C compiler requires to build them.

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