String.Join in SQL

Question

i want to select from a Table called RMA(simplified):

 idRMA| RMA_Number
 -----------------------
 1      RMA0006701
 2      RMA0006730
 3               


        

Answer 1

select rma_number,
   stuff((select ':' + c.symptomcodenumber
    from trelRMA_SymptomCode r
    inner join tdefsymptomcode c on c.idsymptomcode = r.fisymptomcode
    where r.fiRMA = rma.idRMA
    order by c.symptomcodenumber
    for xml path('')), 1, 1, '') SymptomCodeName
from rma

Answer 2

Would this do?

DECLARE @Codes VARCHAR(8000) 
SELECT @Codes = COALESCE(@Codes + ', ': '') +  tdefSymptomCode.SymptomCodeNumber
    FROM  RMA INNER JOIN
        trelRMA_SymptomCode ON RMA.IdRMA = trelRMA_SymptomCode.fiRMA INNER JOIN
        tdefSymptomCode ON trelRMA_SymptomCode.fiSymptomCode = tdefSymptomCode.idSymptomCode
    where idRMA=2
    order by SymptomCodeNumber
return @Codes

Answer 3

Use the classic XML PATH-trick for this:

declare @RMA  as table(idRMA int, RMA_Number nvarchar(20))

declare @trelRMA_SymptomCode as table (fiSymptomCode int, fiRMA int)

declare @tdefSymptomCode as table (idSymptomCode int, SymptomCodeNumber nvarchar(4), SymptomCodeName nvarchar(20))

insert into @RMA values
(1,      'RMA0006701'),
(2,      'RMA0006730'),
(3,      'RMA0006736'),
(4,      'RMA0006739'),
(5,      'RMA0006742')

insert into @trelRMA_SymptomCode values
(1,              1),
(1,              2),
(2,              2),
(5,              3),
(7,              3),
(8,              3),
(2,              5),
(3,              5),
(4,              5),
(5,              5)

insert into @tdefSymptomCode values
(1,                '0000',                   'Audio problem'),
(2,                '0100',                   'SIM problem'),
(3,                '0200',                   'Appearance problem'),
(4,                '0300',                   'Network problem'),
(5,                '0500',                   'On/Off problem')

select RMA_Number,
 STUFF(
    (
    SELECT
      ':' + SymptomCodeNumber
    FROM @tdefSymptomCode def 
    join @trelRMA_SymptomCode rel on def.idSymptomCode = rel.fiSymptomCode
    where rel.fiRMA=rma.idRMA
    FOR XML PATH('')
    ), 1, 1, '')
from @rma rma

results in

RMA0006701  0000
RMA0006730  0000:0100
RMA0006736  0500
RMA0006739  NULL
RMA0006742  0100:0200:0300:0500

Answer 4

Here is something that should get you going:

ALTER FUNCTION [dbo].[GetUCColumns]
(@tableid INT, @index INT)
RETURNS VARCHAR (MAX)
AS
BEGIN

    DECLARE @cols varchar(max)

    SELECT @cols = COALESCE(@cols + ', ', '') + [name]
    FROM [sys].[columns]
    where object_id = @tableid AND column_id IN 
    (SELECT [column_id]
      FROM [sys].[index_columns]
      where object_id = @tableid AND @index = index_id)

    RETURN @cols
    END