[Info-vax] Looking for some text search ideas
David Froble
davef at tsoft-inc.com
Fri Sep 26 13:27:04 EDT 2014
Perhaps in place of discussing non-existent malware on the non-existent
VMS on x86, I might solicit some ideas.
Our applications are not using a RDBMS.
A request has come up to be able to find any data which contains some
specific text. An example might be any product description that
contains the text "gasket". Using keys won't help, because the key
might be "head gasket".
This is similar I believe to the SQL request something like
SELECT * from PRODUCT where DESCRIPTION %like% gasket
My perspective is that on today's systems with gobs of memory that much
of a database's information is probably in memory, thus not incurring
the overhead of lots of disk seeks.
It's also my perspective that such a search is a sequential pass through
the data looking for matches.
And so this is my question. Does anyone know of a more effective method
than a sequential pass through the data of searching a list of data
looking for text matches?
I'm looking at possibilities from global data making the search
available to all, to storage inside the one function currently needing
this capability. Some more research into the application needs will
determine the answer to this question.
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