Oracle SQL load question

I need to upload a datafile to an Oracle database via SQL load process. It is a working system but the SQL load process stopped working.
The control file of the SQL load process looks like the following:

LOAD DATA
INFILE '${DATFILE}'
APPEND
INTO TABLE rnt.incidents
FIELDS TERMINATED BY x'1'
TRAILING NULLCOLS
...
...
...


And the datafile one record is like:

2014-09-07 00:00:17     2014-09-07 00:00:17     Operations       140907-013931  \N      \N      \N


could anyone assist me to understand what the expected delimited in the datafile is, given the control file content of "FIELDS TERMINATED BY x'1'" .. ?
Thanks a lot.
toookiAsked:
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slightwv (䄆 Netminder) Commented:
Have you looked in the docs?

X'hex_string' is a byte string in hexadecimal format

http://docs.oracle.com/cd/E11882_01/server.112/e22490/ldr_concepts.htm#SUTIL984

It means the fields are delimited by a Hex 1.

Granted, I've never seen this but based on information from http://www.asciitable.com/
that is a "Start of Heading" character.

You will likely need a hex editor to view the input file to see if that is the correct character.

>>It is a working system but the SQL load process stopped working.

Please explain what this means.  It was working but then stopped?

If so, what changed?  Please don't say 'nothing'.  Things just don't stop working.
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