Upgrade Storagesearch for null (or empty)
I am using Advanced Search, seeking items with an empty Abstract field.
The expression Abstract does not contain, with the criteria, followed by any of:
. an empty field
. any common letter (e.g. e)
. the wildcard %
should logically be satisfied by an empty Abstract field, but is apparently ignored.
How can I search for an empty field, or effectively NULL?
The expression Abstract does not contain, with the criteria, followed by any of:
. an empty field
. any common letter (e.g. e)
. the wildcard %
should logically be satisfied by an empty Abstract field, but is apparently ignored.
How can I search for an empty field, or effectively NULL?