RE: When do you use Normal Loading and the Bulk Loadin...
If we use SQL Loder connections then it will be to go for Bulk loading. And if we use ODBC connections for source and target definations then it is better to go for Normal loading. If we use Bulk loading then the session performence will be increased. how means... if we use the bulk loading the data will be BYPASS through the DATALOGS. So automatically performence will be increased.
RE: When do you use Normal Loading and the Bulk Loading, Tell the difference?
You would use Normal Loading when the target table is indexed and you would use bulk loading when the target table is not indexed. Running Bulk Load in an indexed table will cause the session to fail.