Dictionary Search Results using Damerau-Levenshtein distance in T-SQL

Here are the results of your fuzzy-string dictionary search for “ferns” with Change Limit: [1] [2]

You can choose a higher Change Limit to return more words, although it will take longer.
Check this box to automatically increase the Change Limit after seconds.

10 similar words found! Changes to Transform each Found Word to your word are shown as:
~~remove a letter~~ ~ replace a letter ~ swap two letters ~ _add a letter from your word
(Use the links in the Changes column to see more Transformation details.)

Found Word	Scrabble Score	Searched Previously	Found Previously	Changes	To Transform to your Word
ferns	8	52	2008	(None)
erns	4	54	2822	1	_erns
fens	7	61	3976	1	fe_ns
feres	8	60	3818	1	feres
fern	7	61	2932	1	fern_
ferny	11	58	1618	1	ferny
firns	8	60	1854	1	firns
herns	8	48	2558	1	herns
kerns	9	47	1956	1	kerns
terns	5	52	2687	1	terns

Search took 2 seconds overall (including website activity, plus SQL activity in the following phases):

Length Filter: Limit the application of DLD to words with length difference of no more than the Change Limit.
DLD Change Limit: Apply DLD to each remaining word, limiting each comparison according to the Change Limit.
Display Results: Return the results, with similar words marked up to highlight differences.

Seq	Search Phase	Words Checked	Words Matched	Seconds	Words Per Sec
1	Length Filter	178691	28756	0.266	671770.7
2	DLD Change Limit	28756	10	1.330	21621.1
3	Display Results	10	10	0.013	769.2
	(SQL Overall)	178691	10	1.609	111057.2