SQL for finding identical domains in e-mail addresses

Question

Hi, guys can anyone help me designing a query which will guve me the names and email addresses of all people who have the identical registered domain names
Edited by: user12258774 on Nov 22, 2009 1:35 PM
Edited by: user12258774 on Nov 28, 2009 1:09 PM
Edited by: user12258774 on Nov 28, 2009 1:11 PM

Answer 1

Actually based on:
Hi, guys can anyone help me designing a query which will guve me the names and email addresses of all people who have the identical registered domain namesThe following will produce lists of consultants with same email domains within expertiseid (assuming list will not exceed 4000 bytes):
SELECT  expertiseid,
        substr(email,instr(email,'@',-1) + 1) domain,
        ltrim(firstname || ' ' || lastname,';'),';') name_list,
        ltrim(email,';'),';') email_list,
        ltrim(c.consultantid,';'),';') consultantid_list
  FROM  (
         SELECT  firstname, lastname, c.consultantid,row_number() over(partition by expertiseid,substr(email,instr(email,'@',-1) + 1) order by c.consultantid) rn
           FROM  consultants c, skills s
           WHERE s.consultantid = c.consultantid
  WHERE connect_by_isleaf = 1
  START WITH rn = 1
  CONNECT BY expertiseid = PRIOR expertiseid
         AND substr(email,instr(email,'@',-1) + 1) = PRIOR substr(email,instr(email,'@',-1) + 1)
         AND rn = PRIOR rn + 1
/SY.