Overview of HCL Informix ODBC Driver
These topics introduce the HCL Informix® ODBC Driver and describe its advantages and architecture. The topics also describe conformance, isolation and lock levels, libraries, and environment variables.
- What is HCL Informix ODBC Driver?
Open Database Connectivity (ODBC) is a specification for a database application programming interface (API). - ODBC component overview
ODBC with the HCL Informix ODBC Driver includes several components. - HCL Informix ODBC Driver with the DMR
HCL Informix ODBC Driver includes a Driver Manager Replacement (DMR) library. The DMR replaces the driver manager on platforms where no driver manager is available. - HCL Informix ODBC Driver components
HCL Informix ODBC Driver includes the four components. - The HCL Informix ODBC Driver API
An application uses the HCL Informix ODBC Driver API to make a connection to a data source, send SQL statements to a data source, process result data dynamically, and terminate a connection. - Global Language Support
HCL Informix products can support many languages, cultures, and code sets. Global Language Support (GLS) provides support for all language- and culture-specific information. - X/Open standard interface
In addition to the standard ODBC functions, the HCL Informix ODBC Driver also supports the additional functions. - External authentication
For HCL Informix Version 10.0 and later, you can implement external authentication through the HCL Informix ODBC Driver. - Bypass ODBC parsing
You can bypass ODBC parsing by using several options. - BufferLength in character for SQLGetDiagRecW
The SQLGetDiagRecW API returns diagnostic information in the output buffer, where the BufferLength parameter is the length of buffer allocated. - Informix and ISAM error descriptions in SQLGetDiagRec
The SQLGetDiagRec API returns diagnostic information in the output buffer, where the error description is for the HCL Informix error message. - Improved performance for single-threaded applications
You are likely to improve the performance of single-threaded applications by using the SINGLETHREADED connection parameter. The value is off by default. - Partially supported and unsupported ODBC features
HCL Informix ODBC Driver supports partial implementation of several ODBC features.
Parent topic: Informix ODBC Driver Guide