| TIfxConnection | encapsulates an Informix database connection |
| TIfxSQL | provides an object for executing an Informix SQL statement with minimal overhead |
| TIfxQuery | executes an Informix SQL statement |
| TIfxTable | is a dataset component that encapsulates a database table |
| TIfxDataSet | is primarily intended for use with SQL SELECT statements |
| TIfxUpdateSQL | provides an object for updating datasets using custom logic SQL statements |
| TIfxCompositMonitor | registers events generated by TIfxConnection in multiple monitors |
| TIfxFileMonitor | registers events generated by TIfxConnection in the text file |
| TIfxVisualMonitor | displays events generated by TIfxConnection on the form |
| TIfxSQLProcessor | manages parsing params. Configured by means of Macros, ParamChar and MacroChar properties |
| TIfxFieldTypes | maps native Informix data types to Delphi field types |
| TIfxStoredProc | encapsulates an Informix stored procedure |