12c express load tsv to table

[oracle@stormking db12201 table]$ sqlplus u/u

SQL*Plus: Release 12.2.0.1.0 Production on Mon Jan 8 22:49:47 2018

Copyright (c) 1982, 2016, Oracle.  All rights reserved.

Last Successful login time: Sun Jan 07 2018 15:50:08 -05:00

Connected to:
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production

SQL> create table xpr ( a number, b varchar2(8) );

Table created.

SQL> Disconnected from Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
[oracle@stormking db12201 table]$ cat > xpr.dat
1       AAA
2       BBB

[oracle@stormking db12201 table]$ sqlldr u/u table=xpr terminated_by="x'9'"

SQL*Loader: Release 12.2.0.1.0 - Production on Mon Jan 8 22:52:36 2018

Copyright (c) 1982, 2017, Oracle and/or its affiliates.  All rights reserved.

Express Mode Load, Table: XPR
Path used:      External Table, DEGREE_OF_PARALLELISM=AUTO

Table XPR:
  2 Rows successfully loaded.

Check the log files:
  xpr.log
  xpr_%p.log_xt
for more information about the load.