sql - Oracle 10g: column is blank, but is not null or an empty string -

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i have column in table blank. weird thing not appear null or empty string. so, if this:

select *    table   column null

...or:

select *    table   column = ''

i nothing. thoughts?

issue query:

select column, dump(column, 1016) table

it'll show exact contents.

related: oracle not allow empty strings; they're silently converted null.


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