SQ L*Loader is a utility that can perform which two tasks？（）

• A、Load data from a disk， tape， or named pipes.
• B、Load data into an Oracle database using DML statements.
• C、Extract， reorganize， and insert data within an Oracle database.
• D、Load data from external files into tables in an Oracle database.
• E、Load data into an Oracle database using operating system commands.
• F、Load data directly from a non-Oracle database to an Oracle database.