Comments on: Paging with different DBs

By: toncidamjanic

toncidamjanic — Fri, 11 Dec 2009 16:32:36 +0000

SQL Server 2005/2008:

WITH NumberedItems AS (
SELECT ROW_NUMBER() OVER(ORDER BY i.Id ASC) AS Rowumber, i.*
FROM Items i
)
SELECT *
FROM NumberedItems
WHERE RowNumber BETWEEN @Start AND @End

By: Emiliano

Emiliano — Tue, 07 Apr 2009 17:00:57 +0000

Miq: off course i would like too a tool (ORM or another tool if exists) that allow me to migrate easily to multiples DBMS, but i think that not exists such of thing. The only way we have its sometimes rewrite code and “hope” that work in every DMBS as posible.
Reggards, Emiliano.

By: Miq

Miq — Tue, 07 Apr 2009 12:42:29 +0000

@Emiliano: Thanks for your comment. Imho one of SQLs purposes is to abstract from the actual implementation of the DBMS. In reality there are differences between the different systems but I like the idea that you actually can migrate to another DBMS. In such a case you want to have and use a standard solution and not change your software because of the database.
My comment about the Oracle “mess” was partly because the solution has many pitfalls and is much more complex than the other implementations.

Best regards,
Miq

By: Emiliano

Emiliano — Sun, 05 Apr 2009 23:06:02 +0000

I disagree with you.
The way to paging with Oracle its how you describe using ROWNUMBER() and there is no “mess” because every RDBMS has his own way to do this.
In Sql Server 2005 you can use ROW_NUMBER() OVER (ORDER BY field ASC) similar to the oracle way.
Reggards, Emiliano.