SQL Select Query problem

Question

4.00/5 (4 votes)

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I have a table with ID(auto number),dealerMobile, totalCost and deliveryDate.
Some example data:

ID, dealerMobile, totalCost, deliveryDate
1,  01723325484,  5000,      20-Apr-14
2,  01723325484,  1000,      22-Apr-14
3,  01723325484,  2000,      22-Apr-14
4,  01852136544,  7000,      23-Apr-14

I need to Show only one row based on dealerMobile which is lastly insert. That is If I Search 01723325484 then It show me the third row only. Currently I am applying the below query, It's not working as I want.

SQL

SELECT DISTINCT dealerMobile, totalCost, deliveryDate FROM tbMain WHERE dealerMobile = '" + txtdealerMobile.Text + "' ORDER BY deliveryDate DESC

Please help.

Posted 23-Apr-14 8:48am

sazzad37

Updated 23-Apr-14 23:12pm

phil.o

v2

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Comments

ccalma 23-Apr-14 21:31pm

Are you using MS SQL or MySQL?

2 solutions

Solution 1

You want to use the find-Nth-pattern in SQL

SQL

Select dealerMobile, totalCost, deliveryDate
FROM
(
    select ROW_NUMBER() over (partition by  dealerMobile, totalCost, convert(date, deliveryDate) order by dealerMobile, totalCost, convert(date, deliveryDate)) as rownr,
     dealerMobile, totalCost, deliveryDate
    from tbMain
    where dealerMobile='set the wanted number here' -- <-- your input here
    order by deliverydate desc
) as rows
where rows.rownr = 1

Posted 23-Apr-14 8:58am

Herman<T>.Instance

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_Asif_ · Accepted Answer · 2014-04-23T23:25:00

Solution 4

a more primitive ansi sql way to do the same

SQL

SELECT dealerMobile, totalCost, deliveryDate 
FROM   tbMain
where  dealerMobile = '01723325484'
and    deliveryDate = (Select max(deliveryDate) from tblMain where dealerMobile = '01723325484')

Posted 23-Apr-14 23:25pm

_Asif_