SQL语法错误 - 多个计数多个标准 - MS ACCESS

Question

第一个问题......

我一直在研究这个网站，发现了一个应该帮助我的SQL ......但是我收到了一个我无法解决的错误。在下面找到SQL和错误：

SELECT field1,
   Sum(IIf(status = "Accepted", 1, 0)) AS [field1_Accepted]
   Sum(IIf(status = "Rejected", 1, 0)) AS [field1_Rejected]
   Sum(IIf(status = "Cancelled", 1, 0)) AS [field1_Cancelled]
FROM tbl1
GROUP BY field1;

错误：SELECT语句包含拼写错误或缺失的保留字或参数名称，或者标点符号不正确。 （错误3141）

我对此查询的期望是：

field1/accepted/rejected/cancelled
a/1/2/3
b/2/3/5
c/2/3/4

信件应该是我的fld1名称，其他数字应该是一个字段已经接受，拒绝和取消状态的数量......

Answer 1

SELECT语句中的表达式需要用逗号分隔。列表达式之间缺少逗号：

SELECT field1,
   Sum(IIf(status = "Accepted", 1, 0)) AS [field1_Accepted], -- <<== Here
   Sum(IIf(status = "Rejected", 1, 0)) AS [field1_Rejected], -- <<== Here
   Sum(IIf(status = "Cancelled", 1, 0)) AS [field1_Cancelled]
FROM tbl1
GROUP BY field1;