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sql-serverstored-proceduresiterationtable-valued-parameters

how to iterate sql TVP values in loop for multiple insert stored procedure


I am in a situation where I need to insert multiple records in one stored procedure.

I use "Table valued parameter", comes from c# code and passing it to stored procedure. (this TVP has a list of analise IDs)

So, I am trying to create a loop; to insert multiple records and to iterate until the max rowsize of the @TVP rows.

How can i get the row size of the TVP (Table Valued Parameters) passed in the SP and iterate in these TVP rows to take their tvp.id's one by one, for a multiple insert?

SP is like this:

create proc insertTable
(
   @nID int,
   @TVP Analises READONLY
)
as
declare @i int
BEGIN
   While @i <--max rownumber of @TVP
   BEGIN
     --insert into tbl_insertAnalyses
     --values(@nID,@tvp.analiseID[i]) -- >need to iterate here
   END
END

Thanks.


Solution

  • A Table-Valued Paramater (TVP) is a table variable. You can just do a simple INSERT...SELECT:

    CREATE PROCEDURE insertTable
    (
       @nID int,
       @TVP Analises READONLY
    )
    AS
    SET NOCOUNT ON;
    
    INSERT INTO tbl_insertAnalyses (ID, AnalysisID)
       SELECT @nID, t.analiseID
       FROM   @TVP t;