Question

I am joining my address book onto my email table like this:

SELECT * FROM messages m
LEFT JOIN addr_book a ON 
m.to_msg LIKE a.h_email 
OR m.to_msg LIKE a.bill_email 
OR m.to_msg LIKE a.b_email 
OR m.to_msg LIKE a.w_email 
OR m.to_msg LIKE a.other_email 
OR m.from_msg LIKE a.h_email 
OR m.from_msg LIKE a.bill_email 
OR m.from_msg LIKE a.b_email 
OR m.from_msg LIKE a.w_email 
OR m.from_msg LIKE a.other_email 
OR m.cc_msg LIKE a.h_email 
OR m.cc_msg LIKE a.bill_email 
OR m.cc_msg LIKE a.b_email 
OR m.cc_msg LIKE a.w_email 
OR m.cc_msg LIKE a.other_email 
OR m.bcc_msg LIKE a.h_email 
OR m.bcc_msg LIKE a.bill_email 
OR m.bcc_msg LIKE a.b_email 
OR m.bcc_msg LIKE a.w_email 
OR m.bcc_msg LIKE a.other_email

The problem is it fetches everything, because some contacts don’t have emails and join up with emails that don’t have cc_msg=” or bcc_msg=”

Is there a way I can left join a table on a column where the column is like ‘@’??

I tried a couple things like IN (m.to_message LIKE a.h_email WHERE a.h_email LIKE '%@%') OR etc etc

But I keep getting errors.

Any ideas?

Thanks a ton!

Answer 1

Ok so that helps out alot. I don’t know why, but I have always assumed = is case sensitive in mySQL. I used the following and it works beautifully. Thanks all, I’m sure if I had proper training I wouldn’t have made this mistake in the first place lol.

LEFT JOIN addr_book a ON 

(m.to_msg=a.h_email OR m.to_msg=a.bill_email OR m.to_msg=a.b_email OR m.to_msg=a.w_email OR m.to_msg=a.other_email) OR

(m.from_msg=a.h_email OR m.from_msg=a.bill_email OR m.from_msg=a.b_email OR m.from_msg=a.w_email OR m.from_msg=a.other_email) OR

((m.cc_msg!='') AND (m.cc_msg=a.h_email OR m.cc_msg=a.bill_email OR m.cc_msg=a.b_email OR m.cc_msg=a.w_email OR m.cc_msg=a.other_email)) OR 

((m.bcc_msg!='') AND (m.bcc_msg=a.h_email OR m.bcc_msg=a.bill_email OR m.bcc_msg=a.b_email OR m.bcc_msg=a.w_email OR m.bcc_msg=a.other_email))