SQL模糊匹配查询

Question

I have a uaserData table with users infromation. It has Id , firstname , lastname and many more. So in that table if I have 'like below' two persons with the firstname and lastname are the same they are most likely duplicates. (can be spelling mistakes)

Id     1
firstname    "kim"
lastname     "kardashian"

Id     2
firstname    "kem"
lastname     "kardshian"

I know how do this if I were to match exactly on all columns but I need fuzzy match to do. There are fuzzy match examples but it very difficult to understand. SOUNDEX also not helping much.

Answer 1

there are bunch af similar questions answered as example:SQL Fuzzy Matching

this is as SOUNDEX example

Declare @t Table (FName varchar(20) ,  LName varchar(20))

insert into @t Values
('kim'    ,'kardashian')
,('kem'     ,'kardashian')
,('klm'     ,'kardashian')

select *
from @t
where SOUNDEX('kam') = SOUNDEX(FName)