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create table elms_leads(phone_voice char(20), phone_work char(20), phone_cell char(20));
insert into elms_leads values('0000000','0000000000','1234567890'); insert into elms_leads values('','__________','1234567890'); insert into elms_leads values('6148468496','','');
3 rows affected
select CASE WHEN elms_leads.phone_voice is not null and len(ltrim(rtrim(elms_leads.phone_voice))) in (7,10) and elms_leads.phone_voice like '%[^0-9]%' THEN elms_leads.phone_voice WHEN elms_leads.phone_work is not null and len(ltrim(rtrim(elms_leads.phone_work))) in (7,10) and elms_leads.phone_work like '%[^0-9]%' THEN elms_leads.phone_work WHEN elms_leads.phone_cell is not null and len(ltrim(rtrim(elms_leads.phone_cell))) in (7,10) and elms_leads.phone_cell like '%[^0-9]%' THEN elms_leads.phone_cell ELSE '' END AS valid_phone from elms_leads
valid_phone
0000000
__________
6148468496