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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 HCL OneDB™ ESQL/C Programmer's Manual explains how to use , the HCL OneDB™ implementation of Embedded Structured Query Language (SQL) for C (ESQL/C), to create client applications with database-management capabilities.
Database server communication
HCL OneDB™ librariesThese topics describe how to link the static, shared, and thread-safe HCL OneDB™ general libraries with your application.
Create a dynamic thread library on UNIX™ operating systems
Compile with the -thread and -l preprocessor optionsYou must compile the application by using the -thread and the -l preprocessor options.

Compile with the -thread and -l preprocessor options

You must compile the application by using the -thread and the -l preprocessor options.

The -thread option indicates that you are linking thread-safe libraries instead of the default HCL OneDB™ shared libraries. The -l option allows you to specify system libraries that you want to link. Finally, you compile your application, link libdynthr.so and run it, as shown in the following example:

% setenv THREADLIB "dynamic"
% esql -thread -ldynthr test.ec -o test.exe
% test.exe