SQL查询将两列合并为一列

Question

对不起来的标题很抱歉.

我有一个SQL查询

SELECT SaleDate, Location, SUM(DollarSales)
FROM [TableName]
WHERE (SaleDate= '2012-11-19' OR SaleDate= '2012-11-12')
GROUP BY SaleDate, Location
ORDER BY Location, SaleDate

我得到如下结果

SaleDate                    Location    (No column name)
2012-11-12 00:00:00.000     002         21500.38
2012-11-19 00:00:00.000     002         24166.81
2012-11-12 00:00:00.000     016         14723.26
2012-11-19 00:00:00.000     016         12801.00

我希望结果看起来像

Location    (Sale on 11/12)    (Sale on 11/19)
002         21500.38           24166.81
016         14723.26           12801.00

我不想使用内部选择.有什么方法可以做到这一点.这是我们使用SQL Server 2000的遗留系统之一.先谢谢你.

Answer 1

你可以尝试:

SELECT
Location,
SUM(CASE WHEN SaleDate = '2012-11-12' THEN DollarSales ELSE 0 END)'Sale on 11/12'
SUM(CASE WHEN SaleDate = '2012-11-19' THEN DollarSales ELSE 0 END)'Sale on 11/19'
FROM [TableName]
GROUP BY Location
ORDER BY Location

这仅在列是静态时才有效,如果日期发生变化,则必须更改此列.