Can you please help me finding the error in the stored procedure? Thanks!!!
CREATE PROCEDURE
realiza_tracking_primer_lectura (
in v_campaign_id int(11),
in v_ares_emails_id int(11),
in v_userid int(11),
in v_country varchar(2),
in v_ip varchar(15),
in v_useragent varchar(255),
in v_time int(11))
BEGIN
DECLARE ReadBefore int DEFAULT null;
if v_campaign_id is Null then
SELECT userid FROM tracking_lecturas WHERE ares_emails_id = v_ares_emails_id and userid = v_userid into ReadBefore;
Else
SELECT userid FROM tracking_lecturas WHERE campaign_id = v_campaign_id and userid = v_userid into ReadBefore;
end if;
if ReadBefore is Null then
insert into tracking_lecturas (campaign_id, ares_emails_id, userid, ip, useragent, timestamp) values (v_campaign_id, v_ares_emails_id, v_userid, v_ip, v_useragent, v_time);
end if;
END
DELIMITER;