我的查询是
SELECT cod_material, (sum(cantidad_actual > 0))>1 AS cantidad FROM ingreso_material GROUP BY cod_material ORDER BY cod_material ASC
我的结果是
cod_material cantidad
321010001 1
321010002 0
321010004 0
321010006 0
321010007 0
321010008 0
321010010 0
321010011 0
321010012 0
321010013 0
322010001 0
322030001 0
322060001 0
322060002 0
343310004 1
391290001 1
391290002 0
391290010 1
395050004 0
395090003 0
395090004 0
395090005 0
395090010 0
395090011 0
395140001 0
397300013 1
我需要忽略在cantidad中具有0值的cod_material 我想忽略0的值我该怎么做?
答案 0 :(得分:2)
您可以通过在HAVING cantidad != 0
子句之前的SQL末尾附近插入ORDER BY
来完成此操作。
答案 1 :(得分:0)
@ staticsan的回答是对的!但在我个人看来,下面的查询比你的更好(为了便于阅读)。您的查询在SELECT部分中有比较运算符。
SELECT cod_material, sum(cantidad_actual) AS cantidad
FROM ingreso_material
GROUP BY cod_material
HAVING SUM(candtidad_actual) > 0
ORDER BY cod_material ASC;
您的更正后的查询如下。哪个看起来更好?
SELECT cod_material, (sum(cantidad_actual > 0))>1 AS cantidad
FROM ingreso_material
GROUP BY cod_material
HAVING cantida > 0
ORDER BY cod_material ASC
BTW,假设cod_material
只有一个cantidad_actual
,其值大于0,那么您的查询无法显示它。假设cantidad_actual是10。