Query for select 2nd row of a column

Question

I have an SQL statement that yeilds something like this:

Amounts
$101.45
$1000.56
$20978.44
$2.98

The SQL that got me this is:

select CHANGE_EFFECTIVE_AMOUNT
from V_Rpt
where ACCOUNT_NUMBER = '100'
and CHANGE_TYPE_CODE = 2
order by TRAN_SEQUENCE_NUMBER desc

How can I structure my statement so that it only returns the second value in this column? Basically, something like "select the 2nd in a column from..." The value will change all the time but it will always be the value after the top one.

I am using Microsoft SQL Server 2008 R2, in case it matters. And, this will eventually go into MS Access 2007 as a pass-through query.

Answer 1

You could achieve this using the ROW_NUMBER() function.

;WITH CTE AS(
    SELECT 
        CHANGE_EFFECTIVE_AMOUNT,
        RN = ROW_NUMBER() OVER(ORDER BY TRAN_SEQUENCE_NUMBER DESC)
    FROM V_Rpt
    WHERE 
        ACCOUNT_NUMBER = '100'
        AND CHANGE_TYPE_CODE = 2
)
SELECT CHANGE_EFFECTIVE_AMOUNT
FROM CTE
WHERE RN = 2

This will return nothing if your query has only 1 row.

---

Using a SUBQUERY:

SELECT
    t.CHANGE_EFFECTIVE_AMOUNT
FROM(
    SELECT 
        CHANGE_EFFECTIVE_AMOUNT,
        RN = ROW_NUMBER() OVER(ORDER BY TRAN_SEQUENCE_NUMBER DESC)
    FROM V_Rpt
    WHERE 
        ACCOUNT_NUMBER = '100'
        AND CHANGE_TYPE_CODE = 2
)t
WHERE t.RN = 2

Answer 2

Try to add this OFFSET 1 ROW FETCH NEXT 1 ROW ONLY to your query.

  select CHANGE_EFFECTIVE_AMOUNT
    from V_Rpt
    where ACCOUNT_NUMBER = '100'
    and CHANGE_TYPE_CODE = 2
    order by TRAN_SEQUENCE_NUMBER desc OFFSET 1 ROW
    FETCH NEXT 1 ROW ONLY;

OFFSET skip 1 row and return only the next row from the result set.

Answer 3

select * from table_name limit 1,1

对于limit x,y x是开始行和的索引y是行数。