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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.
GLS User's GuideThese topics describe the Global Language Support (GLS) feature available in HCL® OneDB® products.The HCL OneDB™ GLS User's Guide describes the Global Language Support (GLS) feature available in HCL® OneDB® products.
SQL featuresThese topics explain how the GLS feature affects the HCL® OneDB® implementation of SQL.
Locale-sensitive data typesThese topics explain how a locale affects the way that a database server handles the MONEY data type, extended data types, and smart large objects (CLOB and BLOB data types).
Handle extended data typesThe extensible data type system of HCL OneDB™ allows users to define new data types and the behavior of these new data types to the database server.
Opaque data typesAn opaque data type is fully encapsulated to client applications; that is, its internal structure is not known to the database server.

Opaque data types

An opaque data type is fully encapsulated to client applications; that is, its internal structure is not known to the database server.

Therefore, the database server cannot automatically perform locale-specific tasks such as code-set conversion for opaque types. All GLS processing (code-set conversion, localized collation order, display formats, and so on) must be performed in the opaque-type support functions.

When you create an opaque data type, you can write the support functions as C UDRs that can handle any locale-sensitive data. For more information, see Locale-sensitive data in an opaque data type.