Database （Microsoft）SQL：有条件地从多列中获取数据

我刚开始使用SQL。数据存储在三个表中。下面给出了一个例子

表1：产品系列

column: product family

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我不确定该查询是否能完成我想要的任务，因为它还提供了语法错误（缺少运算符）

我认为您的问题在于：

from facility, ProductFamily

我将这样编写查询：

select F.location, P.productfamily, S.[2012 Full Units w/C],
    S.[2013 Full Units w/C],  S.[2014 Full Units w/C], S.[2015 Full Units w/C], 
    S.[2016 Full Units w/C], S.[2017 Full Units w/C], S.[2018 Full Units w/C]
from strap S
inner join ProductFamily P on S.[prod series] = P.productfamily
inner join facility F on S.[build plant] = F.location;

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（我不太喜欢表名和列名中的空格）

尝试将facility、ProductFamily中的

更改为ProductFamily中的
（保留连接）-您仍然会收到错误吗？是的，更改后我仍然会收到错误，因此我的查询仍然会给出错误？
select facility.location, ProductFamily.productfamily, strap.[2012 Full Units w/C], [2013 Full Units w/C],  strap.[2014 Full Units w/C],  strap.[2015 Full Units w/C], [2016 Full Units w/C], strap.[2017 Full Units w/C], strap.[2018 Full Units w/C]
from facility, ProductFamily
inner join strap on ProductFamily.productfamily = strap.[prod series]
inner join facility on strap.[build plant] = facility.location;

from facility, ProductFamily

select F.location, P.productfamily, S.[2012 Full Units w/C],
    S.[2013 Full Units w/C],  S.[2014 Full Units w/C], S.[2015 Full Units w/C], 
    S.[2016 Full Units w/C], S.[2017 Full Units w/C], S.[2018 Full Units w/C]
from strap S
inner join ProductFamily P on S.[prod series] = P.productfamily
inner join facility F on S.[build plant] = F.location;