Question

On PostgrSQL its no problem for me to do this:

CREATE SEQUENCE serial_olw START 1;
update collections_elements set elementorder=(nextval('serial_olw')-1) WHERE collections_elements.collectionid=1;
drop sequence serial_olw;

Example: 1,2,3,4,5,6…

On a MS-SQL Server 2008 there is not a function SEQUENCE… so I tried this:

DECLARE @i int
SET @i = 0

WHILE @i<44
    BEGIN
    UPDATE collections_elements set elementorder=(@i) WHERE collections_elements.collectionid=1
        SET @i=@i+1
    END

But I have no success with that loop…

Example: 43,43,43,43,43…

Any ideas for a solution?

Answer 1

Update t
Set t.elementorder = t.RowID
From
(
    Select ROW_NUMBER() Over(Order by collectionid) as RowID, * From collections_elements
)t

SQL Fiddle