Driver Tasks
Specific tasks performed by drivers include:
Connecting to and disconnecting from the data source.
Checking for function errors not checked by the Driver Manager.
Initiating transactions; this is transparent to the application.
Submitting SQL statements to the data source for execution. The driver must modify ODBC SQL to DBMS-specific SQL; this is often limited to replacing escape clauses defined by ODBC with DBMS-specific SQL.
Sending data to and retrieving data from the data source, including converting data types as specified by the application.
Mapping DBMS-specific errors to ODBC SQLSTATEs.
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