How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited field? [duplicate]

Answer 1

I've found a solution by creating the following function:

CREATE FUNCTION [dbo].[JoinTexts]
(
  @delimiter VARCHAR(20) ,
  @whereClause VARCHAR(1)
)
RETURNS VARCHAR(MAX)
AS 
BEGIN
    DECLARE @Texts VARCHAR(MAX)

    SELECT  @Texts = COALESCE(@Texts + @delimiter, '') + T.Texto
    FROM    SomeTable AS T
    WHERE   T.SomeOtherColumn = @whereClause

    RETURN @Texts
END
GO

Usage:

SELECT dbo.JoinTexts(' , ', 'Y')