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Re: Fast Insert Where Not Exist
Posted by: Ferdie Palero
Date: December 01, 2016 11:00PM

Hi Peter,

Where I am wrong? it always inserting a row where there are existing records that no need to be inserted.

INSERT INTO exclusive (lname,fname,mname,address,city,state,zip)
SELECT a.lastname,a.firstname,a.mname,a.address,a.city,a.state,a.zip
FROM exclusive a
LEFT JOIN exclusive_temp b ON b.lname = a.lname
AND b.fname = a.fname
AND b.mname = a.mname
AND b.address = a.address
AND b.city = a.city
AND b.state = a.state
AND b.zip = a.zip;


Regards,
FPalero

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