[Show all top banners]

NepaliBhai
Replies to this thread:

More by NepaliBhai
What people are reading
Subscribers
:: Subscribe
Back to: Kurakani General Refresh page to view new replies
 SQL Select Statement
[VIEWED 5588 TIMES]
SAVE! for ease of future access.
Posted on 08-27-14 9:24 AM     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

Run this script
create table #table1(steps int)
insert into #table1(steps)values(1)
insert into #table1(steps)values(3)
insert into #table1(steps)values(4)
insert into #table1(steps)values(5)

select steps from #table1
drop table #table1

You will get this
steps
1
3
4
5

I want this way.
stepFrom    stepTo
1                3
3                4
4                5
Hints: you need to join the same table multiple times.
Last edited: 27-Aug-14 09:30 AM

 
Posted on 08-27-14 11:35 AM     [Snapshot: 131]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

Here you go NepaliBhai......................


create table #table1(steps int)
insert into #table1(steps)values(1)
insert into #table1(steps)values(3)
insert into #table1(steps)values(4)
insert into #table1(steps)values(5)

select distinct x.stepFrom, Y.stepTo from
(select rank()over(order by a.steps )as rank,a.steps as stepFrom from (select top 3 * from #table1 order by 1 asc) a
left outer join #table1 b
on a.steps =b.steps) x
inner join
(select rank()over(order by a.steps )as rank,a.steps as stepTo from (select top 3 * from #table1 order by 1 desc) a
left join #table1 b
on a.steps =b.steps) y
on x.rank =y.rank

drop table #table1
 
Posted on 08-27-14 11:48 AM     [Snapshot: 142]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

SQL_PRO, i don't think you should be using rank function. Can you try using only ANSI SQL :)?
Btw, if you are using sql 2012 this thing can be done with ease
Select * from
(select steps as StepsFrom,lead(steps) over (order by steps) as StepsTo from #table1 ) t1
where StepsTo is not null

But ANSI SQL would be more interesting :)
 
Posted on 08-27-14 1:08 PM     [Snapshot: 209]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 


SQL_PRO Dude,
It doesn't work that way. You can't hard code like top 3. It should be dynamic.

What if the data is like this.
insert into #table1(steps)values(1)
insert into #table1(steps)values(2)
insert into #table1(steps)values(3)
insert into #table1(steps)values(4)
insert into #table1(steps)values(5)
insert into #table1(steps)values(7)
insert into #table1(steps)values(9)
insert into #table1(steps)values(10)
insert into #table1(steps)values(17)
insert into #table1(steps)values(31)

So the solution is like this

go
WITH TEMP_CTE AS (
SELECT steps, ROW_NUMBER() OVER(ORDER BY steps) AS ROW_NUM FROM #table1
)
SELECT t1.steps, t2.steps FROM TEMP_CTE t1, TEMP_CTE t2
WHERE t1.ROW_NUM < (SELECT MAX(ROW_NUM) FROM TEMP_CTE)
AND (t2.ROW_NUM - 1) = t1.ROW_NUM

 
Posted on 08-27-14 2:17 PM     [Snapshot: 259]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

Here is another puzzle.
create table #table1(steps int)
insert into #table1(steps)values(1)
insert into #table1(steps)values(3)
insert into #table1(steps)values(4)
insert into #table1(steps)values(5)
Now generate random rows for these rows.
e.g
1
3,
5,
4
or
5,
3,
1,
4

Remember, you need to produce random rows every time you run it.

 
Posted on 08-27-14 2:41 PM     [Snapshot: 280]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 


I like your idea. It will be fun to work on. I will try to come up with syntax.

 
Posted on 08-28-14 7:43 AM     [Snapshot: 496]     Reply [Subscribe]
Login in to Rate this Post:     0       ?    
 

Here it is.

create table #table1(steps int)
insert into #table1(steps)values(1)
insert into #table1(steps)values(3)
insert into #table1(steps)values(4)
insert into #table1(steps)values(5)

SELECT cast(steps as varchar) + ',' FROM #table1 ORDER BY NEWID()

drop table #table1
 


Please Log in! to be able to reply! If you don't have a login, please register here.

YOU CAN ALSO



IN ORDER TO POST!




Within last 7 days
Recommended Popular Threads Controvertial Threads
I hope all the fake Nepali refugee get deported
Those who are in TPS, what’s your backup plan?
Travel Document for TPS (approved)
MAGA and all how do you feel about Trumps cabinet pick?
MAGA मार्का कुरा पढेर दिमाग नखपाउनुस !
NOTE: The opinions here represent the opinions of the individual posters, and not of Sajha.com. It is not possible for sajha.com to monitor all the postings, since sajha.com merely seeks to provide a cyber location for discussing ideas and concerns related to Nepal and the Nepalis. Please send an email to admin@sajha.com using a valid email address if you want any posting to be considered for deletion. Your request will be handled on a one to one basis. Sajha.com is a service please don't abuse it. - Thanks.

Sajha.com Privacy Policy

Like us in Facebook!

↑ Back to Top
free counters