?
Solved

SQL Last Weekday Statement

Posted on 2008-06-24
15
Medium Priority
?
731 Views
Last Modified: 2010-07-27
Attached below is my sql query that is working fine.  I would like to add a WHERE clause to show

WHERE a.docdate = 'last weekday'

If today is Monday then I would want it to show all records where a.docdate='Friday'

Any ideas?
select a.sopnumbe, a.custname, a.cstponbr, a.docdate, a.user2ent, b.ponumber from 
(select * from sop10100 where docid = 'WARRANTY') A
left join
(select * from sop60100) B
on a.sopnumbe = b.sopnumbe
group by a.sopnumbe, a.custname, b.ponumber, a.docdate, a.cstponbr, a.user2ent

Open in new window

0
Comment
Question by:r270ba
[X]
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
  • 8
  • 4
15 Comments
 
LVL 60

Expert Comment

by:chapmandew
ID: 21856770
something like this?  You just want it where the date is Friday?

select a.sopnumbe, a.custname, a.cstponbr, a.docdate, a.user2ent, b.ponumber from
(select * from sop10100 where docid = 'WARRANTY') A
left join
(select * from sop60100) B
on a.sopnumbe = b.sopnumbe
where datename(dw, a.docdate) = 'Friday'
group by a.sopnumbe, a.custname, b.ponumber, a.docdate, a.cstponbr, a.user2ent
0
 

Author Comment

by:r270ba
ID: 21856867
Sorry...I was using Friday as an example.  What I am looking for is the previous weekday.  So, if today is Tuesday it would look for Monday's date.  If today is Monday it would look for Friday's date.  
0
 

Author Comment

by:r270ba
ID: 21856879
Today is 06/24/08 and I would want a.docdate='06/23/08'

Monday was 06/23/08 so I would want a.docdate='06/20/08' (Friday)
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 60

Expert Comment

by:chapmandew
ID: 21856908
OK...try this:

select a.sopnumbe, a.custname, a.cstponbr, a.docdate, a.user2ent, b.ponumber from
(select * from sop10100 where docid = 'WARRANTY') A
left join
(select * from sop60100) B
on a.sopnumbe = b.sopnumbe
where convert(varchar(10), a.docdate , 101) = convert(varchar(10), case when datename(dw, getdate()) = 'Monday' THEN DATEADD(d, -3, getdate()) else dateadd(d, -1, getdate()), 101)
group by a.sopnumbe, a.custname, b.ponumber, a.docdate, a.cstponbr, a.user2ent
0
 

Author Comment

by:r270ba
ID: 21856972
Msg 102, Level 15, State 1, Line 6
Incorrect syntax near ','.

I have check the () and they appear to be correct.  Any ideas?
0
 
LVL 60

Accepted Solution

by:
chapmandew earned 1200 total points
ID: 21857028
sorry about that..try this:

select a.sopnumbe, a.custname, a.cstponbr, a.docdate, a.user2ent, b.ponumber from
(select * from sop10100 where docid = 'WARRANTY') A
left join
(select * from sop60100) B
on a.sopnumbe = b.sopnumbe
where convert(varchar(10), a.docdate , 101) = convert(varchar(10), (case when datename(dw, getdate()) = 'Monday' THEN DATEADD(d, -3, getdate()) else dateadd(d, -1, getdate())end), 101)
group by a.sopnumbe, a.custname, b.ponumber, a.docdate, a.cstponbr, a.user2ent
0
 
LVL 69

Assisted Solution

by:Scott Pletcher
Scott Pletcher earned 800 total points
ID: 21857145
select a.sopnumbe, a.custname, a.cstponbr, a.docdate, a.user2ent, b.ponumber from
(select * from sop10100 where docid = 'WARRANTY' and
    docdate >= dateadd(day, - case datename(weekday, getdate()) when 'monday' then 3 when 'sunday' then 2 else 1 end, convert(char(8), getdate(), 112)) and
    docdate < dateadd(day, - case datename(weekday, getdate()) when 'monday' then 2 when 'sunday' then 1 else 0 end, convert(char(8), getdate(), 112))
) A
left join
(select * from sop60100) B
on a.sopnumbe = b.sopnumbe
group by a.sopnumbe, a.custname, b.ponumber, a.docdate, a.cstponbr, a.user2ent
0
 

Author Comment

by:r270ba
ID: 21857907
Chapmandew...as always...thanks for the expert help!
0
 

Author Comment

by:r270ba
ID: 21857918
I am sorry but I did not realize that ScottPletcher had posted and I selected the last post as the answer thinking it was Chapmandew.  Can I please award the points correctly?
0
 
LVL 60

Expert Comment

by:chapmandew
ID: 21857942
please do.  :)
0
 

Author Comment

by:r270ba
ID: 21858026
I need a mod to reset this post and let me re award the points.  Thanks and sorry!
0
 

Author Comment

by:r270ba
ID: 21858964
I have reqeuested for this to be re-opened.
0
 

Author Closing Comment

by:r270ba
ID: 31470191
Thanks for both of your help.  I gave Chapmandew 300 points because I used his solution but I feel like ScottPletcher actually had a more "defensive" solution by adding the if Sunday clause (even though I only thought about Monday).  I appreciate both of your help!
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Load balancing is the method of dividing the total amount of work performed by one computer between two or more computers. Its aim is to get more work done in the same amount of time, ensuring that all the users get served faster.
This post looks at MongoDB and MySQL, and covers high-level MongoDB strengths, weaknesses, features, and uses from the perspective of an SQL user.
This video shows, step by step, how to configure Oracle Heterogeneous Services via the Generic Gateway Agent in order to make a connection from an Oracle session and access a remote SQL Server database table.
Via a live example, show how to extract information from SQL Server on Database, Connection and Server properties
Suggested Courses

764 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