Question

Hey guys I’ve written this MS SQL script with my awesome MS SQL skills, how can I get it to work in MySQL? It’s failing on some of the string functions 🙁 Don’t know MySQL too well!

SELECT i.id as ID, e.code as EMPCODE, lower(e.email_address) as EMAIL
from load_incidents i , dim_employee e
WHERE
(     (i.involvedemail = e.email_address)
or    (replace(lower(e.preferred_name+e.last_name),' ', '') = replace(lower(i.involvedname),' ', ''))
or    (replace(lower(e.preferred_name+e.last_name),' ', '') like replace(lower(i.involvedname),' ', '')+'%')
or    (replace(lower(e.first_name+e.last_name),' ', '') = replace(lower(i.involvedname),' ', ''))
or    (replace(lower(e.first_name+e.last_name),' ', '') like replace(lower(i.involvedname),' ', '')+'%')
or    (replace(lower(e.employee_name),' ','') = replace(lower(i.involvedname),' ',''))
)
and charindex(' ',e.first_name) = 0
and (i.involvedemail= 'none available' or i.involvedemail is null or i.involvedemail = '')
UNION
SELECT i.id as ID, e.code as EMPCODE, lower(e.email_address) as EMAIL
from load_incidents i , dim_employee e
WHERE
(     (i.involvedemail = e.email_address)
or    (replace(lower(e.preferred_name+e.last_name),' ', '') = replace(lower(i.involvedname),' ', ''))
or    (replace(lower(e.preferred_name+e.last_name),' ', '') like replace(lower(i.involvedname),' ', '')+'%')
or    (replace(lower(left(e.first_name,charindex(' ',e.first_name)-1) + e.last_name),' ', '') = replace(lower(i.involvedname),' ',''))
or    (replace(lower(e.employee_name),' ','') = replace(lower(i.involvedname),' ',''))
)
and charindex(' ',e.first_name) > 1
and (i.involvedemail= 'none available' or i.involvedemail is null or i.involvedemail = '')

Answer 1

YOUR problem is the charindex function, use locate (in place of charindex) for that purpose :

LOCATE(' ',e.first_name)