Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Help with SQL query

Posted on 2013-06-10
7
Medium Priority
?
322 Views
Last Modified: 2013-06-10
Hello EE,

I have a table wich saves the time and an action.

something like :

SIGN IN      06/06/2013 12:42:01.830
PRESSED     06/06/2013 12:45:11.293
PRESSED     06/06/2013 12:45:41.342
PRESSED     06/06/2013 12:45:11.293
PRESSED     06/06/2013 12:45:41.342
PAUSED      06/06/2013 12:46:21.552
RESUMED   06/06/2013 12:55:01.193
UNPRESSED ....
etc

only possible action are:  sign in, sign out, pressed, unpressed, pause, resume

I want to know how many time in minutes the guy took pause..
here it would be : 12:55:01.193  minus 12:46:21.552

the guy could take multiple pauses.. i need a query that it tells me the total ...

can you help ? thanks...
0
Comment
Question by:PhilippeRenaud
7 Comments
 
LVL 22

Expert Comment

by:Om Prakash
ID: 39234397
Try something like:

Select 
FLOOR(Cast(Dummy as Float)) as Days
,DATEPART(Hour,dummy) as Hours
,DATEPART(MINUTE,dummy) as Minutes
,DATEPART(Second,dummy) as Seconds
from
(
Select 
DateAdd(second, SUM(DATEDIFF(SECOND,start,ende)),Cast(0 as Datetime)) as Dummy 
from table_name
) a

Open in new window

http://stackoverflow.com/questions/13697181/sql-query-for-finding-difference-of-two-time-and-sum
0
 
LVL 16

Expert Comment

by:Easwaran Paramasivam
ID: 39234399
Order the dattime field.. Have an Id value as first column..

Whenever paused is found take the id, take the (id + 1)  that is resumed state and take the datetime difference. Below link could help you.

http://stackoverflow.com/questions/2116540/difference-of-two-date-time-in-sql-server
0
 
LVL 1

Author Comment

by:PhilippeRenaud
ID: 39234413
start, ended ?  you writing if I had 2 columns.. but I only have my column called: Action_Date
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 
LVL 22

Expert Comment

by:Thomasian
ID: 39234417
DECLARE @t TABLE (Act varchar(10), DT datetime)

INSERT @t
SELECT 'SIGN IN', '06/06/2013 12:42:01.830'
UNION ALL SELECT 'PAUSED', '06/06/2013 12:42:11.293'
UNION ALL SELECT 'PRESSED', '06/06/2013 12:43:31.142'
UNION ALL SELECT 'RESUMED', '06/06/2013 12:45:11.295'
UNION ALL SELECT 'PRESSED', '06/06/2013 12:45:41.342'
UNION ALL SELECT 'PAUSED', '06/06/2013 12:46:21.552'
UNION ALL SELECT 'RESUMED', '06/06/2013 12:55:01.193'

;WITH CTE AS (
	SELECT *, rn=ROW_NUMBER() OVER (ORDER BY DT)
	FROM @t
	WHERE Act IN ('PAUSED','RESUMED')
)
SELECT SUM(DATEDIFF(MILLISECOND,T2.DT, T1.DT))/60000.0
FROM CTE T1 INNER JOIN CTE T2 ON T1.rn = T2.rn+1
WHERE T2.Act = 'PAUSED' AND T1.Act = 'RESUMED'

Open in new window

0
 
LVL 1

Author Comment

by:PhilippeRenaud
ID: 39234433
Thomasian, thanks, is there a way to put the select result into a variable? im trying :  set @total = ( your final select here )  not working..
0
 
LVL 22

Accepted Solution

by:
Thomasian earned 2000 total points
ID: 39234440
Yes, just replace the SELECT statement with:
SELECT @total=SUM(DATEDIFF(MILLISECOND,T2.DT, T1.DT))/60000.0

Open in new window

0
 
LVL 1

Author Closing Comment

by:PhilippeRenaud
ID: 39234456
thanks
0

Featured Post

[Webinar] Database Backup and Recovery

Does your company store data on premises, off site, in the cloud, or a combination of these? If you answered “yes”, you need a data backup recovery plan that fits each and every platform. Watch now as as Percona teaches us how to build agile data backup recovery plan.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Composite queries are used to retrieve the results from joining multiple queries after applying any filters. UNION, INTERSECT, MINUS, and UNION ALL are some of the operators used to get certain desired results.​
Use this article to create a batch file to backup a Microsoft SQL Server database to a Windows folder.  The folder can be on the local hard drive or on a network share.  This batch file will query the SQL server to get the current date & time and wi…
This lesson discusses how to use a Mainform + Subforms in Microsoft Access to find and enter data for payments on orders. The sample data comes from a custom shop that builds and sells movable storage structures that are delivered to your property. …
With just a little bit of  SQL and VBA, many doors open to cool things like synchronize a list box to display data relevant to other information on a form.  If you have never written code or looked at an SQL statement before, no problem! ...  give i…

581 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question