Solved

Query Date and Time in Different Columns

Posted on 2008-06-16
4
635 Views
Last Modified: 2008-06-16
I have a table that has a modified Julean date stored as a varchar in one column and a time value stored as a varchar in another column.  I would like to be able to query for all values that are between a start date/time and an end date/time.  For example if my start date is 108152 and start time is 175945 and my end date is 108155 and end time is 085500 then I would like all of the values inbetween.  Please provide me with an example where statement.
0
Comment
Question by:schlepuetz
  • 2
4 Comments
 
LVL 69

Accepted Solution

by:
Qlemo earned 125 total points
ID: 21795385
1. if your time and date values are right aligned, you can simply concatenate both to compare:

where juldate + ' ' + jultime between '108152 175945' and '108155 085500'

Otherwise, you will have to convert time and date to number, and compare those:

where convert(float, juldate) + convert(float, jultime)/240000 between ... and ...

I left some stuff to your imagination ;-)

BTW: Bad idea, storing date/time values in varchar ....
0
 
LVL 3

Author Comment

by:schlepuetz
ID: 21795460
I agree with the bad idea thing but that is the nature of the beast when dealing with other people's stuff.  Let me give your suggestions a whirl.
0
 
LVL 51

Expert Comment

by:Mark Wills
ID: 21795802
Time seems to be straight time - 24 hour clock...  So, try these... and convert either Julian to date or date to julian and compare time seperately....

-- JULIAN TO SQL SERVER
declare @date char(10)
set @date=108152
select dateadd(dd,@date-(@date/1000)*1000-1, convert(datetime,'01/01/'+ right(convert(varchar,@date/1000),2))) as Date_From_Julian

-- SQL SERVER DATE TO JULIAN
declare @date datetime
set @date=getdate()
select (100+year(@date)-2000)*1000+ datediff(d, convert(datetime,('01/01/'+convert(char(4),year(@date)))),@date)+1 as Date_To_Julian
 
-- TIME
declare @date datetime
set @date=getdate()
select replace(convert(varchar,@date,108),':','')   --or 114
0
 
LVL 3

Author Comment

by:schlepuetz
ID: 21796702
Here is final solution that I used.
cast([Date]as varchar(6)) + right('000000' + cast([Time]as varchar(6)),6)

I used the right to make sure that I had the same number for the times as some of ny times where not the full 6 characters.

Sorry mark wills I had tried before converting the date and time to normal date time values but the query was too slow.  The difference was 15 seconds versus 2 seconds.

Thanks Qlemo for the push in the right direction!
0

Featured Post

Resolve Critical IT Incidents Fast

If your data, services or processes become compromised, your organization can suffer damage in just minutes and how fast you communicate during a major IT incident is everything. Learn how to immediately identify incidents & best practices to resolve them quickly and effectively.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
SQL Select in Access 2003 3 42
Need return values from a stored procedure 8 40
MSSQL join different row from other table 14 65
Change this SQL to get all nodes 3 36
Data architecture is an important aspect in Software as a Service (SaaS) delivery model. This article is a study on the database of a single-tenant application that could be extended to support multiple tenants. The application is web-based develope…
In this article I will describe the Backup & Restore 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.
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…
Are you ready to implement Active Directory best practices without reading 300+ pages? You're in luck. In this webinar hosted by Skyport Systems, you gain insight into Microsoft's latest comprehensive guide, with tips on the best and easiest way…

740 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