SQL Server snippets
How to concatenate values of a columns into a string
Example 1
Assuming that we have the following table #Players
which contains a list of players and thei own team.
CREATE TABLE #Players(
[Name] [nvarchar](50) NOT NULL,
[Surname] [nvarchar](50) NOT NULL,
[Team] [nvarchar](50) NULL,
) ON [PRIMARY];
INSERT INTO #Players
( [Name], [Surname], [Team])
VALUES
('Mary', 'Green', 'cats'),
('Lory', 'Red', 'dogs'),
('Fiona', 'White', 'cats'),
('John', 'Yellow', 'cats'),
('Susan', 'De Blue', 'dogs'),
('Albert', 'Mac Black', 'dogs'),
('Marc', 'Stripes', 'referee');

We want generate a string with all the names of the players
DECLARE @Names VARCHAR(MAX)
SELECT @Names = COALESCE(@Names + ', ', '') + [Name]
FROM #Players
SELECT @Names AS [Names]

You can find an interactive version of this example following this link .