Exception when updating row with rowversion? - sql-server

Question

I have a table that looks like this :
CREATE TABLE [dbo].[akut_prioritering]
(
[behandling_id] [int] NOT NULL,
[akutstatus] [int] NOT NULL,
[nasta_dag] [bit] NOT NULL,
[sort_order] [bigint] NOT NULL,
[rowversion] [timestamp] NOT NULL,
CONSTRAINT [XPKakut_prioritering]
PRIMARY KEY CLUSTERED ([behandling_id] ASC)
) ON [PRIMARY]
And then I have this stored procedure that tries to update rows in this table :
ALTER PROCEDURE [dbo].[akutlistaSave]
#behandlingSortOrder dbo.akutlista_sortorder_tabletype READONLY
AS
BEGIN
SET NOCOUNT ON;
DECLARE #behandlingId INT;
DECLARE #sortOrder BIGINT;
DECLARE #rowversion ROWVERSION;
DECLARE sortOrderCursor CURSOR LOCAL SCROLL STATIC FOR
SELECT behandling_id, sort_order FROM #behandlingSortOrder
OPEN sortOrderCursor
BEGIN TRAN
FETCH NEXT FROM sortOrderCursor INTO #behandlingId, #sortOrder, #rowversion
WHILE ##FETCH_STATUS = 0
BEGIN
IF EXISTS(SELECT *
FROM akut_prioritering ap
WHERE ap.behandling_id = #behandlingId
AND ap.rowversion = #rowversion)
BEGIN
UPDATE akut_prioritering
SET sort_order = #sortOrder
WHERE behandling_id = #behandlingId;
END
ELSE
BEGIN
RAISERROR ('Rowversion not correct.', 16, 1);
END
FETCH NEXT FROM sortOrderCursor INTO #behandlingId, #sortOrder, #rowversion
END
CLOSE sortOrderCursor
SELECT
ap.behandling_id, ap.rowversion
FROM
akut_prioritering ap
INNER JOIN
#behandlingSortOrder bso ON ap.behandling_id = bso.behandling_id;
DEALLOCATE sortOrderCursor
END
The inparameter type looks like this :
CREATE TYPE [dbo].[akutlista_sortorder_tabletype] AS TABLE
(
[behandling_id] [int] NULL,
[sort_order] [bigint] NULL,
[rowversion] [timestamp] NULL
)
When running this I get a SqlException :
Cannot insert an explicit value into a timestamp column. Use INSERT with a column list to exclude the timestamp column, or insert a DEFAULT into the timestamp column.
From what I understand the rowversion column should be updated with a new value automatically, there is no reason in my case to set it manual.

Answer 1

You can't set the rowversion value in dbo.akutlista_sortorder_tabletype because it is not updateable: it is auto generated
However, rowversion (a.k.a deprecated timestamp) is simply a (var)binary(8) with some special rules. You can define and set a (var)binary(8) in dbo.akutlista_sortorder_tabletype and compare on that in the UPDATE
From the first link
A nonnullable rowversion column is semantically equivalent to a binary(8) column. A nullable rowversion column is semantically equivalent to a varbinary(8) column.

Answer 2

It looks like you are trying to insert a timestamp value in a custom table type and then passing that to your stored procedure. As your error suggests, you cannot insert explicit timestamp values into timestamp columns.
You will need to find a different way of passing you table values to this stored procedure to work.