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.
The client-server connectionThe application can establish a connection to any valid database environment. A database environment can be a database, a database server, or a database and a database server.
Connect to a database server
Multiplexed connections
Limitations for multiplexed connections

Limitations for multiplexed connections

imposes the following limitations on multiplexed connections:

Shared memory connections are not supported.
Multithreaded applications are not supported.
The database server ignores the sqlbreak() function on a multiplexed connection. If you call it, the database server does not interrupt the connection and does not return an error.