Find Substring in SQL

Question

I have to find substring as follows.

Data as below

---

aaaa.bbb.ccc.dddd.eee.fff.ggg 

qq.eeddde.rrr.t.hh.jj.jj.hh.hh 

ee.r.t.y.u.i.ii.

I want output as-

---

bbb

eeeddde

r

---

challenge I am facing is all have (.) as separator so sub-string is tough to work.

SELECT SUBSTRING(string,CHARINDEX('.',string)+1,
       (((LEN(string))-CHARINDEX('.', REVERSE(string)))-CHARINDEX('.',string))) AS Result 
  FROM [table] 

---

bbb

eeeddde

r

---

looking substring between first and secound (.)

then it might be between second and third (.)

Answer 1

Here is one method:

select left(v.str1, charindex('.', v.str1 + '.') - 1)
from t cross apply
     (values (stuff(t.string, 1, charindex('.', t.string + '.'), '')
     ) v(str1)