How to set default value in SubQuery result using mysql

How to set default VALUE in SubQuery result using mysql

SELECT      
    p.`id`, p.`name`, p.`class_name`, cpd.`status_team`,
    cpd.`home`, cpd.`guest`, cpd.`mvp`, cpd.`oscar`,
    cpd.`wam`, cpd.`status`, cpd.`added_date`,
    (SELECT result FROM result_cards WHERE `id` = cpd.`result`) AS DEFAULT(`result`)
FROM `cron_players_data` cpd
INNER JOIN `players` p ON cpd.`player_id` = p.id
WHERE cpd.`added_date` = '2012-03-29' AND cpd.team_id = '15'

      

when I remove this DEFAULT () the query will run normally. Actually, I want the default result to be 0 or help is definitely appreciated

enter image description here

+3


source to share


2 answers


You have to postpone the sub-connection request. But I can't figure out what you are trying to do with DEFAULT (). You will need to explain what you are trying to achieve.



SELECT      
    p.`id`, p.`name`, p.`class_name`, cpd.`status_team`,
    cpd.`home`, cpd.`guest`, cpd.`mvp`, cpd.`oscar`,
    cpd.`wam`, cpd.`status`, cpd.`added_date`,
    IFNULL(rc.`result`, 0) AS `result`
FROM `cron_players_data` cpd
INNER JOIN `players` p
    ON cpd.`player_id` = p.id
LEFT JOIN result_cards rc
    ON cpd.`result` = rc.id
WHERE cpd.`added_date` = '2012-03-29'
AND cpd.team_id = '15'

      

+1


source


IFNULL solution



SELECT      
p.`id`,p.`name`,p.`class_name`,cpd.`status_team`,cpd.`home`,cpd.`guest`,cpd.`mvp`,
cpd.`oscar`,cpd.`wam`,cpd.`status`,cpd.`added_date` ,
IFNULL((SELECT result FROM result_cards WHERE `id` = cpd.`result`),0) AS `result` 
FROM `cron_players_data` cpd INNER JOIN `players` p ON cpd.`player_id` = p.id
WHERE cpd.`added_date` = '2012-03-29' AND cpd.team_id = '15' 

      

+4


source







All Articles