如何为SQL Server 2008构建全文搜索谓词

Question

I want to search a full-text column for the following two terms:

2011
J Vineyards

where I construct the predicate as

"2011*" and "j vineyards*"

no rows are returned.

A record which should match is

2011 j vineyards viognier alexander valley united states

After experimentation, it seems to be related to the single "j" character.

EDIT:

Here is the select statement for the full-text column BeverageSearchData.

Declare @test nvarchar(100);
Set @test='""2011*" and "j vineyards*"';
Select * from bv_beverage WHERE CONTAINS (BeverageSearchData,@test)

Answer 1

There are a couple of possibilities going on here. The full query and not just the predicate would help you get a better answer.

One thing that is probably going on is that SQL Full-text search eliminates single characters (As in J) when building its index.

If using CONTAINS , you may need to change your noise file and restart the SQL Server FullText Search service.

If using LIKE , you may be able try adding an additional single character wildcard. Play with it and see if it works without the 2011 and then add it back in.

WHERE myColumn like 'j_vineyards%'
WHERE myColumn like 'j%vineyards%'

An additional thing to note is that CONTAINS does not supports leading wildcards.

Answer 2

You're looking for % , not * .

Try this instead:

"%2011%" and "%j vineyards%"

Answer 3

What language did you choose when creating the index? SQL Server associates the system full-text stoplist by default when creating an index which is probably what is happening in your case.

Try building the index with STOPLIST OFF like so -

CREATE FULLTEXT INDEX on [table]([column]) ON [catalog] WITH STOPLIST OFF;

Alternatively, you can modify the stoplists to exclude certain words such as 'j' in the example shown above.