When loading data from flat files (text ascii) to tables I find that if the file is a delimited file with all the fields defined as VARCHAR for the columns the columns with blank values (all spaces not just two consecutive delimitters for a column which is defined in the target table as CHAR or VARCHAR) are loaded as NULLs wheres if the file is a fixed type file with the layout dfined as CHAR for the columns the columns are loaded with an 'empty string'. Question is: (1) what's the theory behind this behavior if this is really by design? (2) how do I a make MLOAD load (without using a CASE Expression) emptry string when loading data from delimitted files.
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