Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

Advanced where  between but only for time, not for date.

Posted on 2009-04-14
6
190 Views
Last Modified: 2012-05-06
Hi expert!

Im using SQL Server 2005 and have question. Look on the picyure.  I need to apply criteria over date like this
WHERE  (dbo.LTimeSlots.StartDateTime BETWEEN dbo.LCampaignTimes.BTime AND dbo.LCampaignTimes.ETime)

But I need to check only for part of time (Hour, Minutes, second) and to ignore data part  (year, month, day) which is total different.   How to do this most effective way,  I have index over dbo.LTimeSlots.StartDateTime ?

Thank you!

sql-Date.JPG
0
Comment
Question by:dvplayltd
  • 3
  • 2
6 Comments
 
LVL 92

Expert Comment

by:Patrick Matthews
ID: 24142622
Hello dvplayltd,

This will be slow...

WHERE  CONVERT(varchar, dbo.LTimeSlots.StartDateTime, 8) BETWEEN CONVERT(varchar, dbo.LCampaignTimes.BTime, 8) AND CONVERT(varchar, dbo.LCampaignTimes.ETime, 8)

Regards,

Patrick
0
 
LVL 11

Accepted Solution

by:
N R earned 500 total points
ID: 24142643
Here you go:
WHERE (dbo.LTimeSlots.StartDateTime BETWEEN convert(datetime,dbo.LCampaignTimes.BTime,108) AND convert(datetime,dbo.LCampaignTimes.ETime,108))

Open in new window

0
 

Author Comment

by:dvplayltd
ID: 24142936
To Gallitin

Is it possible to forget to apply Convert also for StartDateTime ? I mean to be:

WHERE (convert(datetime,dbo.LTimeSlots.StartDateTime,108)  BETWEEN convert(datetime,dbo.LCampaignTimes.BTime,108) AND convert(datetime,dbo.LCampaignTimes.ETime,108))

And this convert convert to time, or to sring ? Becaues if is to string it will not work property ?
 
0
NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

 
LVL 92

Expert Comment

by:Patrick Matthews
ID: 24143721
dvplayltd said:
>>Is it possible to forget to apply Convert also for StartDateTime ? I mean to be:

Please look at my first post--that is exactly what I did :)

Patrick
0
 

Author Comment

by:dvplayltd
ID: 24143767
To matthewspatrick

I find best solution, here to you to know it :-). It is REALLY faster .. difrence is about 0.5 sec. over 0.6 sec. total time ..

      WHERE      (dbo.LTimeSlots.StartDateTime - CAST(FLOOR(CAST(dbo.LTimeSlots.StartDateTime AS float)) AS datetime)
          BETWEEN      (@BTime - CAST(FLOOR(CAST(@BTime AS float)) AS datetime))  AND
                              (@ETime - CAST(FLOOR(CAST(@ETime AS float)) AS datetime))  )
0
 

Author Comment

by:dvplayltd
ID: 24143780
Yes, but in first post you convert it to varchar, then compare it. I do not think that compare like nvarchar is egual to compare number and may result wrong result.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
passing parameter in sql procedure 9 65
SQL 2005 - Memory Table Column Names 11 77
How can i get data when i use where clause with group by? 3 41
SQL Error - Query 6 41
If you having speed problem in loading SQL Server Management Studio, try to uncheck these options in your internet browser (IE -> Internet Options / Advanced / Security):    . Check for publisher's certificate revocation    . Check for server ce…
In this article I will describe the Copy Database Wizard method as one possible migration process and I will add the extra tasks needed for an upgrade when and where is applied so it will cover all.
Established in 1997, Technology Architects has become one of the most reputable technology solutions companies in the country. TA have been providing businesses with cost effective state-of-the-art solutions and unparalleled service that is designed…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

828 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