在表中搜索整个单词，如果找到则排除结果中的整个单词

Question

Using MS Access, how would I create a query using SQL to search a table containing search terms (1 to 10 word phrases) for keywords or keyword phrases in another table, then exclude any matches to produce a list of search terms that did not match?

Search Terms Table Sample Data

• tree house design
• nelson tree house master
• attachment point
• attach blinder
• stainless steel nails

Negative Keywords & Keyword Phrases Sample Data

• sign
• attach
• use
• steel

Desired Query Output

• tree house design
• nelson tree house master
• attachment point

NOTE: The Negative keywords include 'sign' and 'attach' but this should not prevent 'tree house design' and 'attachment point' from showing up in the result set. I am using Access 2007.

Answer 1

here's the query

SELECT SearchTerms.Phrase
FROM SearchTerms, Negatives
GROUP BY SearchTerms.Phrase
HAVING (((Max(InStr(" " & [phrase] & " "," " & [exclude] & " ")))=0));

Where SearchTerms is a table of the search terms and Phrase is the search term field, Negatives is the table with negative terms to exclude and Exclude is the field name in that table.

The trick is that I added spaces before & after the phrase, then looked for matches with the words to exclude and leading/trailing blanks. This way I can identify only the phrases that match whole words and not parts of words.

Worked fine when I set up the tables & tested it.