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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.
HCL OneDB™ ODBC Driver GuideThe HCL OneDB™ ODBC Driver Programmer's Manual serves as a user guide and reference for HCL OneDB™ ODBC Driver, which is the HCL OneDB™ implementation of the Microsoft™ Open Database Connectivity (ODBC) interface, Version 3.0.
Data typesThese topics contain information about the data types that are supported by HCL OneDB™ ODBC Driver.
SQL data typesHCL OneDB™ database server uses SQL data types.
Additional SQL data types for GLSAdditional SQL data types for GLS have corresponding HCL OneDB™ ODBC Driver data types.

Additional SQL data types for GLS

Additional SQL data types for GLS have corresponding HCL OneDB™ ODBC Driver data types.

The following table lists the additional HCL OneDB SQL data types for GLS and their corresponding HCL OneDB ODBC Driver data types. HCL OneDB ODBC driver does not provide full GLS support. For more information about GLS, see the HCL OneDB GLS User's Guide.


HCL OneDB SQL data type	HCL OneDB ODBC driver SQL data type (fSqlType)	Description
NCHAR(`n`)	SQL_CHAR	Character string of fixed length `n` (1 `n` 32,767). Collation depends on locale.
NVARCHAR(`m`, `r`)	SQL_VARCHAR	Character string of variable length with maximum length `m` (1 `m` 255) and minimum amount of reserved space `r` (0 `r` < `m`). Collation depends on locale.