Errors :: Field in data file exceeds maximum length
If Field is having enough width size and not accommodating records into that from text file.
Reason:: By default char field take only upto 255 character, if records size is more then you have to modify your controlfile and specify the char field width size
Solutions:: Modify your control file and add CHAR(size) in front of column, below are a dummy control file for your reference.
$ cat apprvlcomment.ctl
load datainfile *into table application_approval_comments
fields terminated by ''
optionally enclosed by X'9' trailing nullcols
Wahid Ali Khan