sql - 在 vb 中选择 select 以访问 SQL 时出现语法错误

Question

我得到一条 SQL 语句，从 vb 中的访问数据库中进行选择，但出现此错误；当我运行我的程序时，“查询表达式中的语法错误选择 sum(brought_qtty)”。我想我在做正确的事，但似乎不是。如何调整此选择？代码如下：

"select distinct(brought_price) as [Price], select sum(brought_qtty) as [Ordinary] from brought_coffee where " & _
"coffee_grade=O, select sum(brought_qtty) as [Premium] from brought_coffee where" & _
"coffee_grade=P, sum(brought_qtty) as [Total Qtty]" & _
", sum(brought_paid) as [paid],  " & _
"sum(brought_bal) as [Balance]" & _
"from brought_coffee, farmer where brought_date=#" & dtc.Text.Trim & "# and farmer_centre='" & cc.Text.Trim & _
"' and farmer.farmer_num=brought_coffee.farmer_num"

Answer 1

查询中的第二个和第三个select产生语法错误...替换select sum(brought_qtty)为 just sum(brought_qtty)。