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Original Letter Standardized Letter
ä ae
Ö oe
ö oe
Ü ue
ü ue
ß ss
Because of this standardization we get high fuzzy scores for common differences in the spelling of words.
Original term Standardized term
müller mueller
Mueller mueller
Cafe cafe
Café cafe
Search on a String Column (VARCHAR, NVARCHAR)
The decision if two strings are the same is based on the string representation that is stored in the dictionary for
that column. The contents of a string column are converted to lowercase characters before they are stored in the
dictionary. Other standardizations are not done.
So it is possible to use the spellCheckFactor option to, for example, distinguish between 'café' and 'cafe'.
CREATE COLUMN TABLE test_spell_check_factor
(
id INTEGER PRIMARY KEY,
s NVARCHAR(255)
);
INSERT INTO test_spell_check_factor VALUES ('1','Muller');
INSERT INTO test_spell_check_factor VALUES ('2','Mueller');
INSERT INTO test_spell_check_factor VALUES ('3','Müller');
INSERT INTO test_spell_check_factor VALUES ('4','Möller');
SELECT SCORE() AS score, id, s
FROM test_spell_check_factor
WHERE CONTAINS(s, 'Müller', FUZZY(0.5, 'spellCheckFactor=0.9'))
ORDER BY score DESC;
DROP TABLE test_spell_check_factor;
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