Home
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
Working with the database serverThese topics explain how the HCL® OneDB® ESQL/C program can interact with a database server.
Optimized message transfers provides a feature called optimized message transfers, which allow you to minimize message transfers with the database server for most statements.
Enabling optimized message transfers

Enabling optimized message transfers

About this task

To enable optimized message transfers, or message chaining, you must set the following variables in the client environment:

Set the OPTMSG environment variable at run time to enable optimized message transfers for all qualifying SQL statements.
Set the OptMsg global variable within the application to control which SQL statements use message chaining.