API Functions

The Microsoft ODBC Driver for Oracle supports the Core Level, Level 1, and Level 2 API functions. These functions are listed in ODBC Conformance Levels.

Core Level Interface (CLI) conformance provides features defined in the ISO CLI specification and the mandatory features defined in the X/Open CLI specification.
Level 1 conformance provides Core Level Interface functionality as well as additional features such as transactions.
Level 2 conformance provides Level 1 functionality as well as additional features such as bookmarks, dynamic parameters, and asynchronous execution of ODBC functions.