Release 10.1A: OpenEdge Data Management:
SQL Development
ODBC architecture
The ODBC architecture consists of the following components:
- Application — An ODBC application is any program that calls ODBC functions and uses them to issue SQL statements.
- ODBC driver manager — The driver manager routes calls from an application to the ODBC driver. The ODBC driver manager loads the requested driver in response to an application’s call to the ODBC
SQLConnectorSQLDriverConnectfunctions.- ODBC driver — An ODBC driver is a dynamic link library (DLL) or a shared library that processes ODBC function calls for a specific data source. The driver connects to the data source, translates the standard SQL statements into syntax the data source can process, and returns data to the application.
- Data source — A data source is a combination of a database system, the operating system it uses, and any network software required to access it.
Figure 3–1 shows the components in an ODBC environment.
Figure 3–1: Components of an ODBC environment
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