MySQL错误：子查询返回多于1行

Question

Getting error : #1242 - Subquery returns more than 1 row

while executing this

SELECT `Index` , `FundName` ,Count(*), 
    (SELECT COALESCE(sum(b.PricePerWeek),0) 
     FROM tbl_FundSubscriptions
     WHERE DATE_SUB(CURDATE(),INTERVAL 7 DAY) <= SubscribeDt  
     GROUP BY FundIDSend)

FROM tbl_FundSubscriptions b, tbl_FundStatic a

WHERE a.FundID = b.FundIDSend

AND FundIDSend IN 
    (SELECT FundID
     FROM tbl_FundStatic
     WHERE UserID = '14')

GROUP BY a.FundName,a.Index 

What could be wrong?

Thanks

Answer 1

Your subquery is returning more then 1 row.

Either you LIMIT the subquery to one row or you LEFT JOIN it with the other table.

Answer 2

Is this the query you're looking for? Not knowing your table structure, we'll never know, but this does what your query appears to have been indented to do. (Does that make any sense at all?)

SELECT `Index`, `FundName`, COUNT(*), 
    (SELECT SUM(`PricePerWeek`)
     FROM `tbl_FundSubscriptions`
     WHERE DATE_SUB(CURDATE(),INTERVAL 7 DAY) <= `SubscribeDt` 
           AND `FundIDSend` = `tbl_FundStatic`.`FundID`)

FROM `tbl_FundStatic`

WHERE `UserID` = '14'