SQL Server where子句中的多个值

如何创建在同一列中计算相同值的SQL查询

例如，一个客户可以有多个名称相同但ID不同的发票

卡尔有两张发票，上面写着电话

您将如何在查询中使用它

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如果我想列出有两张发票且有特定名称的人员？

没有表架构很难，但您的查询应该如下所示：

SELECT CustomerName from Invoice 
GROUP BY CustomerName,InvoiceName
HAVING COUNT(InvoiceName)>1

SELECT CustomerName from Invoice 
WHERE InvoiceName='Phone'
GROUP BY CustomerName,InvoiceName
HAVING COUNT(InvoiceName)>1 

如果您使用的是客户id，则可以在对其进行分组之前先加入该id，如果您需要查询特定发票，则可以按如下方式进行：

SELECT CustomerName from Invoice 
GROUP BY CustomerName,InvoiceName
HAVING COUNT(InvoiceName)>1

SELECT CustomerName from Invoice 
WHERE InvoiceName='Phone'
GROUP BY CustomerName,InvoiceName
HAVING COUNT(InvoiceName)>1 

尝试：

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这将为您提供至少有两张发票名为“Phone”的所有客户：

select customer
from invoice
where invoice_name = 'Phone'
group by customer
having count(*) >= 2;

试试这个

SELECT invoicenumber,
       name,
       count
FROM   (SELECT invoicenumber,
               name,
               Count(1) AS count
        FROM   TABLE1
        GROUP  BY invoicenumber,
                  name)
WHERE  count = 2; 

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在这里发布表模式