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Extending HCL OneDB™Beyond standard relational database objects, HCL OneDB™ can be extended to handle specialized data types, access methods, routines, and other objects. HCL OneDB™ includes many built-in extensions that are fully integrated in the database server. HCL OneDB™ also provides DataBlade® modules, which are packages of extended database objects for a particular purpose and that are installed separately from the database server. Alternatively, you can create your own user-defined objects for HCL OneDB™.
HCL OneDB™ extensions and DataBlade® modulesThese topics describe how to use built-in database extensions and separately installed DataBlade® modules.
Database Extensions User's GuideThe HCL OneDB™ Database Extensions User's Guide explains how to use the database extensions that come with HCL OneDB™: Large Object Locator, MQ messaging, binary data types, basic text search, node data type, HCL OneDB™ web feature service for Geospatial Data, and SQL packages.
Binary data typesThe binary18 and binaryvar data types allow you to store binary-encoded strings, which can be indexed for quick retrieval.
Store and index binary data
Binary data types
The binary18 data type

The binary18 data type

The binary18 data type is a fixed-length opaque data type that holds 18 bytes. Input strings shorter than 18 bytes are right-padded with zeros (00). Strings longer than 18 bytes are truncated.

The binary18 data type has the advantage of not having its length stored as part of the byte stream. When inserting data into the binaryvar data type, the first byte must be the length of the byte array. The binary18 data type does not have this restriction.