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Client APIs and toolsYou can use the HCL Informix® implementation of client APIs to develop applications for Informix® database servers.
Informix® ODBC Driver GuideThe Informix® ODBC Driver Programmer's Manual serves as a user guide and reference for Informix® ODBC Driver, which is the Informix® 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 Informix® ODBC Driver.
Data typesInformix® ODBC Driver supports five different data types.

Data types

Informix® ODBC Driver supports five different data types.

The following table describes the data types that Informix ODBC Driver supports.


Data type	Description	Example
Informix SQL data type	Data types that your Informix database server uses	CHAR(`n`)
Informix ODBC Driver SQL data type	Data types that correspond to the Informix SQL data types	SQL_CHAR
Standard C data type	Data types that your C compiler defines	unsigned char
Informix ODBC Driver typedef	Typedefs that correspond to the standard C data types	UCHAR
Informix ODBC Driver C data type	Data types that correspond to the standard C data types	SQL_C_CHAR

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