SQL组利用两个场

我有两个表Customers和CustomerStatusEntries：SQL组利用两个场

CustomerStatusEntries 
--------------------------- 
Id | Branch | CustomerStatus_Value | Customer_Id 

CustomerStatus_Value = ("B" = "Block" , "E" = "Created" etc...)

我需要得到这个输出

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来源

2012-08-30 rtp

至极RDBMS？请发布表结构和样本数据，它会帮助很多人获得一些答案，而不是-1的批次 – Yaroslav

您需要'PIVOT'。如果你透露你正在使用什么样的SQL，有人可能会告诉你如何。或者你可以搜索。 – podiluska

上午使用SQL Server我说的领域，用户需要帮助我...我认为可以轻松得出结论，客户表有一个ID，这是主键... – rtp

SELECT Branch AS 'Branch Code', 
    SUM(CASE WHEN CustomerStatus_Value = 'E' THEN 1 ELSE 0 END) AS 'Created', 
    SUM(CASE WHEN CustomerStatus_Value = 'A' THEN 1 ELSE 0 END) AS 'Active', 
    SUM(CASE WHEN CustomerStatus_Value = 'B' THEN 1 ELSE 0 END) AS 'Blocked', 
    SUM(CASE WHEN CustomerStatus_Value = 'C' THEN 1 ELSE 0 END) AS 'Cancelled', 
    COUNT(CustomerStatus_Value) AS 'All' 
FROM CustomerStatusEntries 
GROUP BY Id

来源

2012-08-30 13:31:48

把他们在正确的顺序:) –

+1，但仍然缺少“总计”行，也似乎“Id”不存在，“Branch”别名为“分支代码”。 –

全部工作！ – rtp

假设列的固定数量的你已经显示在您的示例中，您可以这样做：

SELECT Branch, 
     SUM(CASE WHEN CustomerStatus_Value = 'E' THEN 1 ELSE 0 END) AS Created, 
     SUM(CASE WHEN CustomerStatus_Value = 'A' THEN 1 ELSE 0 END) AS Active, 
     SUM(CASE WHEN CustomerStatus_Value = 'B' THEN 1 ELSE 0 END) AS Blocked, 
     SUM(CASE WHEN CustomerStatus_Value = 'C' THEN 1 ELSE 0 END) AS Cancelled, 
     COUNT(*) AS All 
    FROM CustomerStatusEntries 
    GROUP BY Branch;

来源

2012-08-30 13:32:33

你可以使用标准的SQL做到这一点：

select branch_code, 
     sum(case when CustomerStatus_Value = 'E' then 1 else 0 end) as Created, 
     sum(case when CustomerStatus_Value = 'B' then 1 else 0 end) as Blocked, 
     ... 
from t 
group by branch_code 
order by 1

来源

2012-08-30 13:32:46

SQL组利用两个场

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