Solved

Comparing date times start time and end time using between

Posted on 2010-09-09
6
348 Views
Last Modified: 2012-05-10
I cant seem to get the right combination to generate the proper results.  I need to compare the start date and end date to determine if rows are overlaping.  Example

RowID        StartTime                           EndTime
1                9/11/2010  08:00:00         9/11/2010  09:00:00
2                9/11/2010  07:30:00         9/11/2010  08:30:00
3                9/11/2010  08:30:00         9/11/2010  09:30:00
4                9/11/2010  09:30:00         9/11/2010  10:30:00

I need to return row 1,2 and 3 but not row 4 since the start time is the same as the end time of the previous appointment. Any help is greatly appreciated.
0
Comment
Question by:clintnash
6 Comments
 
LVL 20

Expert Comment

by:dsacker
ID: 33638162
Try this:
select RowID,
       StartTime,
       EndTime
from   MyTable
where  StartTime NOT IN (select EndTime from MyTable)

Open in new window

0
 
LVL 142

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 33638280
what about this:
select t.*
 from yourtable t
 where exists( select null from yourtable o where o.starttime < t.endtime and o.endtime > t.starttime )

Open in new window

0
 
LVL 3

Accepted Solution

by:
mehdi_javan earned 500 total points
ID: 33638466
I think you need this:

Select t1.* 
from YourTable t1
where exists (select null from YourTable t2
              where (t1.StartTime > t2.StartTime and t1.StartTime < t2.EndTime)
              or (t1.EndTime > t2.StartTime and t1.EndTime < t2.EndTime)
              or (t1.StartTime < t2.StartTime and t1.EndTime > t2.EndTime)

Open in new window

0
Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

 
LVL 1

Author Closing Comment

by:clintnash
ID: 33638666
Short of a missing ) at the end, this query returns the correct results. Thanks to each of your for your help this morning.
0
 
LVL 142

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 33638677
did you try mine? did it not work?
0
 
LVL 1

Author Comment

by:clintnash
ID: 33639633
Angel, Actually I tried them all, the first returned two of the three rows, yours returned all four rows.  Thank you...
0

Featured Post

Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Compare data between two databases 16 103
SQL Merige returns error code when updating 15 53
Parsing the XML data to SQL Server 4 65
Not selecting duplicate data 6 53
This article will describe one method to parse a delimited string into a table of data.   Why would I do that you ask?  Let's say that you need to pass multiple parameters into a stored procedure to search for.  For our sake, we'll say that we wa…
Introduction: When running hybrid database environments, you often need to query some data from a remote db of any type, while being connected to your MS SQL Server database. Problems start when you try to combine that with some "user input" pass…
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.

770 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