Answers for "sql server in comma seprated string"

sql server results to comma delimited string

DECLARE @csv VARCHAR(MAX)
SELECT @csv = COALESCE(@csv + ',' ,'') + book_title from Test.dbo.Books where book_id IN ( 101, 102, 103);
SELECT @csv 

Output
Head First SQL, SQL Puzzler, T-SQL Fundamentals

split string by comma in sql server

CREATE FUNCTION Split
(
  @delimited nvarchar(max),
  @delimiter nvarchar(100)
) RETURNS @t TABLE
(
-- Id column can be commented out, not required for sql splitting string
  id int identity(1,1), -- I use this column for numbering splitted parts
  val nvarchar(max)
)
AS
BEGIN
  declare @xml xml
  set @xml = N'<root><r>' + replace(@delimited,@delimiter,'</r><r>') + '</r></root>'

  insert into @t(val)
  select
    r.value('.','varchar(max)') as item
  from @xml.nodes('//root/r') as records(r)

  RETURN
END
GO