del_nz,
I wasn't aware of 'Soundex', but I checked it (along with 'Diffrence') and it's not what I need.
And...
I searched for "autiful" in Yahoo and AltaVista and I did get results with "beauitful".
Thanx anyway
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Full-Text Search can't match suffix's
Hi Experts,
I need to perform a search on a large amount of data stored in a large amount of tables and fields in SQL Server. I don't want to use the LIKE operator in the query, mainly because it means I'll have to write all field names hard-coded (and it's a lot). Besides, I imagin this method is slow with comparison to other available methods.
I tried to use the full-text search, by making catalogs and full-text indexes.
The problem is that CONTAINS and FREETEXT that go along with full-text search do not enable a search for an exact phrase (if it's not a whole word).
for example: suppose there is a row with the word "beautiful", I want a search phrase "autiful" to return this row. But the full-text search knows how to match prefix's, not suffix's.
What's the solution for this?
What method do the search-engines use, maybe Index-Server?
(I don't know much about it, is this the solution?)
Thanx,
motile
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motile:
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by: del_nzPosted on 2001-11-19 at 01:26:22ID: 6641283
I believe that the underlying search service is the same for both Index Server and SQL Server Full Text Search ie MS Search.
In the past I have found quite good information and backgrounders in the Index Server stuff in MSDN about how lexical search rules work.
As far as I understand it, CONTAINS clauses with wildcards are based on word stemming rules (trimming suffixes) so its only going to be matched prefixes that you are going to find. Using wildcards just increases the range of acceptable prefixes.
If you try a search on google say for "autiful" then you don't get results with "beautiful" but I have seen some fuzzy search engines - I think they might work on a Soundex type algorithm. Are you aware of the soundex function in transact-sql?