Translate query from SQL Server to Access 2000 - sql-server

Question

I've an Access 2000 .mdb file. I have this query in the same database but on SQL Server. The query works fine in SQL Server, but in Access I get an error; I supposed it is due to ROW_NUMBER().
I can't use vba to make this query because I have to run it with Odbc driver.
SELECT *
FROM
(SELECT
*,
ROW_NUMBER() OVER (ORDER BY cognome,nome ASC) AS RowID
FROM
(SELECT DISTINCT
(a.ID_PAZIENTE) AS codice,
a.NOME AS nome,
a.COGNOME AS cognome,
a.TITOLO AS titolo,
a.TELEFONOABITAZIONE AS tel,
a.TELEFONOUFFICIO AS uff,
a.FAX AS cell,
a.E_MAIL AS email,
a.SESSO AS sesso
FROM
PAZIENTI AS a
WHERE 1 = 1) AS AnagraficheDistinct
) AS Anagrafiche
WHERE
RowID >= 1 AND RowID <= 25
ORDER BY
cognome, nome ASC;
And this is the error:
Syntax error (missing operator) in expression of query: "ROW_NUMBER()
OVER (ORDER BY cognome,nome ASC)
I tried to convert the query following online documentation and this is what I made:
SELECT *
FROM (
SELECT Top 10
*
FROM
(
SELECT DISTINCT TOP 20 p.ID_PAZIENTE,p.cognome,p.nome
FROM PAZIENTI p
ORDER BY p.cognome ASC,p.nome ASC
) AS sub1
ORDER BY sub1.cognome DESC,sub1.nome DESC
) AS anagrafiche
ORDER BY p.cognome ASC,p.nome ASC
Unfortunately this query returns strange results. Changing the start index (How do I implement pagination in SQL for MS Access?), sometimes return 10 results (the page size), sometimes 12 based on the start index (startpos + page size).
I'm doing something wrong or this thing in no possible with Access without VBA?
Thanks

Answer 1

Consider the following. RowNumber() is not available in Access SQL but can possibly be replicated with a rank by name using subquery:
SELECT *
FROM
(SELECT DISTINCT
a.ID_PAZIENTE AS codice,
a.NOME AS nome,
a.COGNOME AS cognome,
a.TITOLO AS titolo,
a.TELEFONOABITAZIONE AS tel,
a.TELEFONOUFFICIO AS uff,
a.FAX AS cell,
a.E_MAIL AS email,
a.SESSO AS sesso,
(SELECT count(*)
FROM PAZIENTI As b
WHERE b.cognome <= a.cognome
AND b.nome <= a.nome) As RowID
FROM PAZIENTI AS a) AS AnagraficheDistinct
) AS Anagrafiche
WHERE RowID >= 1 AND RowID <= 25
ORDER BY cognome, nome;

Answer 2

First of all, the Query in MS-Access is logically completely different from the SQL-Server-Query.
The first one gives you the first 25 rows ordered by cognome,nome.
The Access-Query gives you the last 10 Rows from the first 20 Rows in the specified order.
In Access there is no built-in-Function such as ROW_NUMBER. And because you are using two fields as ordering criteria for the ROW_NUMBER (cognome, nome) the usage of a Count(*) Subquery doesn't work.
But I have instead built a type of RANK-Function in Access and maybe that work's for you. But, it may give also more rows back as you specify for one pagesize, if the number of rows with the same value in cognome is greater than the pagesize. In this query it is important, that only cognome is part of the Count(*) subquery.
SELECT p.*
FROM
(
SELECT codice, cognome, nome, titolo, tel, uff, cell, email
FROM
(
SELECT DISTINCT a.ID_PAZIENTE AS codice, a.COGNOME AS cognome,
a.NOME AS nome, a.TITOLO AS titolo,
a.TELEFONOABITAZIONE AS tel, a.TELEFONOUFFICIO AS uff,
a.FAX AS cell, a.E_MAIL AS email, a.SESSO AS sesso,
(SELECT Count(*) FROM PAZIENTI AS temp
WHERE temp.cognome < a.cognome
) + 1 AS Rank
FROM PAZIENTI AS a
) AS psub
WHERE Rank >= 1 AND Rank <= 5
ORDER BY Rank
) p
ORDER BY cognome, nome
If that doesn't help you, I think, you will need a VBA-Function. But here it is critical to reset the counter before every query.
An other Option is using a Pass-Through-Query and send the first query directly to SQL-Server. You have to specify the odbc-Connectionstring in the Query-Object in Access.