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.
What is HCL OneDB™ ESQL/C?
Smart large objectsA smart large object is a data type that stores large, non-relational data objects such as images, sound clips, documents, graphics, maps and other large objects, and allows you to perform read, write, and seek operations on those objects.
Data structures for smart large objects
The LO file descriptorThe LO file descriptor is an integer value that identifies an open smart large object.

The LO file descriptor

The LO file descriptor is an integer value that identifies an open smart large object.

An LO file descriptor is similar to the file descriptors for operating-system files. It serves as an I/O handle to the data of the smart large object in the server. The LO file descriptors start with a seek position of 0. Use the LO file descriptor in one of the library functions that accepts LO file descriptors.