| ERROR | PROCEDURE string, invalid operation |
| CAUSE | UTL_FILE.INVALID_OPERATION: An error occurred when accessing a file. |
| ACTION | Check that the file being accessed is not already opened by another program, then retry. |
| ERROR | PROCEDURE string, invalid operation |
| CAUSE | UTL_FILE.INVALID_OPERATION: An error occurred when accessing a file. |
| ACTION | Check that the file being accessed is not already opened by another program, then retry. |