Solved

Query

Posted on 2002-05-11
7
147 Views
Last Modified: 2010-04-04
Hello

My DataBase is Paradox.

And I have 3 tables

table 1:

ID    BeignDate   Price
1      1-1-2001      1.21
1      1-2-2001      5.21
1      2-2-2002     10.22
2      5-5-2002     22.22
3      2-2-2002      1.11

table 2:
ID    BeginDate   Correction
1     1-3-2001      -.50
1     1-4-2001      +.10
2     1-1-2002      -.02
5     6-6-2002     10.01

Table 3
ID   Name
1    A
2    B
3    C
4    D
5    E

I want to select The LAST Price for each ID
Price := Price + Correction

The Result Table:

ID Last Price
1       10.32
2       22.20
3        1.11
5       10.01

Can anybody help me with SQL Statement?

Thanks.
0
Comment
Question by:pmarkov
  • 3
  • 3
7 Comments
 
LVL 4

Expert Comment

by:nestorua
ID: 7003097
HI,
Try this:
SELECT A.ID, A.PRICE+B.CORRECTION AS LASTPRICE  
FROM TABLE1 A
JOIN TABLE2 B ON B.ID=A.ID
WHERE (A.BEGINDATE=
        (SELECT MAX(BEGINDATE) FROM TABLE1
         WHERE ID=A.ID))
AND
        (B.BEGINDATE=
        (SELECT MAX(BEGINDATE) FROM TABLE2
         WHERE ID=B.ID))

If everything will be good - fine, if not - inform me.
Sincerely,
Nestorua.
0
 
LVL 4

Expert Comment

by:nestorua
ID: 7003129
I suppose the Fields are not NULL although.
Sincerely,
Nestorua.
0
 

Author Comment

by:pmarkov
ID: 7005263
Thanks! :)))

This is good but there is one problem.

Look at row 4 in Result table where ID = 5!
ID = 5 exist in table 2 but NOT exist in table 1 :)

Thaks againg.
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Author Comment

by:pmarkov
ID: 7005265
... and what about  Table 3? Can you put the NAME of ID in the result table?
0
 
LVL 4

Accepted Solution

by:
nestorua earned 100 total points
ID: 7006471
HI,
From your example Table3 doesn't effect onthe result.

Sincerely,
Nestorua.
0
 

Author Comment

by:pmarkov
ID: 7007741
This is good but there is one problem.

Look at row 4 in Result table where ID = 5!
ID = 5 exist in table 2 but NOT exist in table 1 :)

Thaks againg.
0
 
LVL 1

Expert Comment

by:pnh73
ID: 9005623
No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:

Accept answer from nestorua

Please leave any comments here within the next seven days.
 
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!
 
Paul (pnh73)
EE Cleanup Volunteer
0

Featured Post

Secure Your Active Directory - April 20, 2017

Active Directory plays a critical role in your company’s IT infrastructure and keeping it secure in today’s hacker-infested world is a must.
Microsoft published 300+ pages of guidance, but who has the time, money, and resources to implement? Register now to find an easier way.

Question has a verified solution.

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

Hello everybody This Article will show you how to validate number with TEdit control, What's the TEdit control? TEdit is a standard Windows edit control on a form, it allows to user to write, read and copy/paste single line of text. Usua…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…

749 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