SQL*Loader-00820: cannot create where clause with range for table string

SQL*Loader-00820: cannot create where clause with range for
table string

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SQL*Loader-00820: cannot create where clause with range for table string..

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Cause: The EXTERNAL_TABLE parameter was specified for a
multi-table load, and a WHEN clause for one of the tables
contains a reference to a range of bytes in the record. SQL
Loader uses the WHEN clause from the control file to
generate the WHERE clause in the INSERT statement. If the
WHERE clause contains a reference to a range of bytes in the
table, then a valid WHERE clause can not be generated. Note
that SQL Loader will proceed as if GENERATE_ONLY was
specified for the EXTERNAL_TABLE parameter.

Action: Modify the control file to only use field references
in the WHEN clause. Note that this may require creating a
filler field. Another alternative is to create one control
file for each table to be loaded and load the table separately.

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