Previously, if just the data file's name is specified in the control file, SQL*Loader would look for it in the same folder as the control file. Now, it gives the following error.
SQL*Loader-500: Unable to open file (CUSTOMER.csv)
SQL*Loader-553: file not found
SQL*Loader-509: System error: The system cannot find the file specified.
SQL*Loader-2026: the load was aborted because SQL Loader cannot continue.