How to Do an Inner Join on Row Number in SQL Server

How to do an inner join on row number in sql server

try this:

USE ROW_NUMBER() function in sql server 2008

select A.val,B.val 
from(
    SELECT val,row_number() over (order by val) as row_num
    FROM A)A
join
    (SELECT val,row_number() over (order by val) as row_num
    FROM B)B
on  A.row_num=B.row_num
ORDER BY A.val,B.val

SQL fiddle demo

sql how to do an inner join with row number

First, if you are using SQL Server 2012+, you can use fetch first . . . offset syntax. This is more convenient than row number.

The best way to solve your problem is to list all the columns you need explicitly. Then, if two columns from the tables have the same names, use an alias to rename them. Something like:

SELECT t.*
FROM   (SELECT ROW_NUMBER() OVER (ORDER BY t.activities DESC) AS Row,
               z.zcol1, z.zcol2, . . .,
               t.tcol1, t.zcol2, . . 
        FROM threads t INNER JOIN
             zips z
             ON z.city = @Ucity AND z.state = @Ustate
        WHERE t.latitudes >= z.ThirtyLatMin AND
              z.ThirtyLatMax >= t.latitudes AND
              t.longitudes >= z.ThirtyLonMin AND
              z.ThirtyLonMax >= t.longitudes
      ) t
WHERE ROW >= 1 AND Row <= 5 ;

If you don't want row as a returned column in the outer query, then you need to list all the columns that you do want in the outer select.

Inner join gives undesired result with row number in sql server

you've got OrderID that are null or blanks in SpecificOrders and they are sorting to the top - the approach isn't wrong otherwise, although there are other ways of doing it such as TOP 10..etc

SELECT * FROM
(SELECT ROW_NUMBER() OVER (ORDER BY OrderID) AS Row,* FROM SpecificOrders 
                                                  WHERE RTRIM(COALESCE(OrderID, '')) <> '') 
AS EMP
    inner join Users as c on EMP.UserID = c.UserID
    inner join Users as u on EMP.CreatedBy = u.UserID       
    inner join SpecificOrderPayment as p on EMP.OrderID= p.OrderID

WHERE Row BETWEEN 0 AND 10 

Inner Join between 2 sql having ROW_Number SQL Server

You can't reference Claims in your subquery like that because it hasn't been introduced. Why not move that join to the primary query like this?

Select * 
from 
(
    Select 
        PolicyReference as IRIS_Policy_Ref ,
        REPLACE(SUBSTRING(Ch.ClaimSuffix,3,4),'-','') as Claims_Seq,
        CH.AccidentDate as Loss_Date,
        CH.AccidentYear as Loss_Year,
        CH.ClaimCreatedDate as Claim_Advised_Date,
        CH.NoticeDescription as Loss_Description,
        NULL  as Conv_Claim_No,
        NULL as CHI,     
        NULL as Manual, 
        BrokerRef as Broker_Code,                
        Null as Current_ACR,
        Null as Current_IBNR,
        Source ='DCT',
        ROW_NUMBER() OVER(PARTITION BY PolicyReference ORDER BY TransactionDate DESC) RowNum 
    from dbo.Policy P
    INNER JOIN dbo.Claims CH ON Ch.PolicyReference = P.PolicyReference
) PM 
where PM.RowNum = 1 

How to use SQL ROW_NUMBER with INNER JOIN?

This is your order by expression:

        ORDER BY [Papers.PID] ASC

It is looking for a column named in its entirety "Papers.PID". It is not looking for the PID column in Papers. Just drop the braces:

        ORDER BY Papers.PID ASC

ROW_NUMBER and multiple JOIN

Why:

You cannot access the aliased lineNumb column in the where clause of your select--it isn't defined in the context.

How to correct:

Use what you have as a subquery or CTE and select from that using your where.

SELECT * 
  FROM (<you existing query without the where>)
 WHERE lineNumb <= 5

Joining Two Same-Sized Resultsets by Row Number

This will not help you, but SQL does not guarantee row order unless it is asked to explicitly, so the idea that they will be returned in the order you expect may be true for a given set, but as I understand the idea of set based results, is fundamentally not guaranteed to work properly. You probably want to have a key returned from the UDF if it is associated with something that guarantees the order.

Despite this, you can do the following:

declare @val int
set @val=1;

Select Val1,Val2 from 
(select Value as Val2, ROW_NUMBER() over (order by @val) r from udf1) a
join 
(select Value as Val2, ROW_NUMBER() over (order by @val) r from udf2) b
on a.r=b.r

The variable addresses the issue of needing a column to sort by.

If you have the privlidges to edit the UDF, I think the better practice is to already sort the data coming out of the UDF, and then you can add ident int identity(1,1) to your output table in the udf, which makes this clear.

The reaosn this might matter is if your server decided to split the udf results into two packets. If the two arrive out of the order you expected, SQL could return them in the order received, which ruins the assumption made that he UDF will return rows in order. This may not be an issue, but if the result is needed later for a real system, proper programming here prevents unexpected bugs later.

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