我见过多个将单个列汇总到逗号分隔列表中的示例,但我需要更多。
这是我需要的数据和结果的示例。
DECLARE @SalesPerson table (SalesPersonID int, SalesPersonName varchar(10))
DECLARE @Region table (RegionID int, RegionName varchar(15))
DECLARE @SalesPersonRegion table (SalesPersonID int, RegionID int)
INSERT INTO @SalesPerson (SalesPersonID, SalesPersonName) VALUES (1,'Jeff')
INSERT INTO @SalesPerson (SalesPersonID, SalesPersonName) VALUES (2,'Pat')
INSERT INTO @SalesPerson (SalesPersonID, SalesPersonName) VALUES (3,'Joe')
INSERT INTO @Region (RegionID, RegionName) VALUES (1,'North')
INSERT INTO @Region (RegionID, RegionName) VALUES (2,'South')
INSERT INTO @Region (RegionID, RegionName) VALUES (3,'East')
INSERT INTO @Region (RegionID, RegionName) VALUES (4,'West')
INSERT INTO @SalesPersonRegion (SalesPersonID,RegionID) VALUES (1,1)
INSERT INTO @SalesPersonRegion (SalesPersonID,RegionID) VALUES (1,2)
INSERT INTO @SalesPersonRegion (SalesPersonID,RegionID) VALUES (1,3)
INSERT INTO @SalesPersonRegion (SalesPersonID,RegionID) VALUES (2,2)
INSERT INTO @SalesPersonRegion (SalesPersonID,RegionID) VALUES (2,3)
INSERT INTO @SalesPersonRegion (SalesPersonID,RegionID) VALUES (2,4)
INSERT INTO @SalesPersonRegion (SalesPersonID,RegionID) VALUES (3,1)
INSERT INTO @SalesPersonRegion (SalesPersonID,RegionID) VALUES (3,4)
一个简单的选择即可找到每个销售人员及其所在区域。
SELECT
sp.SalesPersonID,
sp.SalesPersonName,
r.RegionName
FROM @SalesPersonRegion spr
JOIN @SalesPerson sp
ON spr.SalesPersonID = sp.SalesPersonID
JOIN @Region r
ON spr.RegionID = r.RegionID
在本例中,它将返回 9 行。
我想得到这样的结果:
SalesPersonID SalesPersonName Regions
1 Jeff North,South,East
2 Pat South,East,West
3 Joe North,West
最佳答案
SELECT
sp.SalesPersonID,
sp.SalesPersonName,
Regions = STUFF
(
(
SELECT ',' + r.RegionName
FROM @Region AS r
INNER JOIN @SalesPersonRegion AS spr
ON r.RegionID = spr.RegionID
WHERE spr.SalesPersonID = sp.SalesPersonID
ORDER BY r.RegionID
FOR XML PATH(''), TYPE
).value('.[1]','nvarchar(max)'),
1,1,''
)
FROM @SalesPerson AS sp
ORDER BY sp.SalesPersonID;
关于sql-server - 将单个列连接到逗号分隔的列表中,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18155349/