sql - Subquery returned more than 1 value. VB6 -


hi i'm trying select value of movementline.qty if movements.movementscode equal rw if not put 0.00

select levelfield1.description,        products.reportuom,        products.productcode,        products.description,        isnull(sum(receivingline.qty), 0.00)       [b.delivery],        movements.movementcode,        isnull((select qty                  movementline                 movementcode = 'rw'), 0.00) [b. returned]   products        left join levelfield1               on levelfield1.levelfield1code = products.levelfield1code        left join receivingline               on receivingline.productcode = products.productcode        left join movementline               on movementline.productcode = products.productcode        left join movements               on movements.movementid = movementline.movementid group  levelfield1.description,           products.reportuom,           products.productcode,           products.description,           movementline.qty,           movements.movementcode

i got error

subquery returned more 1 value. not permitted when subquery follows =, !=, <, <= , >, >= or when subquery used expression. warning: null value eliminated aggregate or other set operation.

your code make think deeply. because there maybe join problem , may not correct result. problem solve using top 1 correct result not possible. here need use case. hope problem solve using bellow code.

select levelfield1.description, products.reportuom, products.productcode,         products.description ,isnull(sum(receivingline.qty),0.00) [b.delivery],    movements.movementcode,   case      when movementline.movementcode = 'rw' isnull(movementline.qty,0.00)     esle 0.00   end [returned]    products    left join levelfield1 on levelfield1.levelfield1code = products.levelfield1code   left join receivingline on receivingline.productcode = products.productcode   left join movementline on movementline.productcode = products.productcode   left join movements on movements.movementid = movementline.movementid    group levelfield1.description, products.reportuom, products.productcode, products.description, movementline.qty,movements.movementcode

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