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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.
What is HCL OneDB™ ESQL/C?
Opaque data typesThese topics explain how to use the lvarchar, fixed binary, and var binary data types to access an opaque data type from the program. Use these data types to represent an opaque data type as it is transferred to and from HCL OneDB™.
Access the internal format of an opaque type
Access a fixed-length opaque typeThe fixed binary data type allows you to access a fixed-length opaque-type column in its internal format.

Access a fixed-length opaque type

The fixed binary data type allows you to access a fixed-length opaque-type column in its internal format.

Follow these steps to transfer the internal format of a fixed-length opaque-type column between the database server and the application:

Declare a fixed binary host variable
Use the fixed binary host variable in an SQL statement to perform any select, insert, update, or delete operations on the internal format of the fixed-length opaque-type column.