?
Solved

Query

Posted on 2002-05-11
7
Medium Priority
?
156 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
[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
  • 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
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 

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 400 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

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

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

A lot of questions regard threads in Delphi.   One of the more specific questions is how to show progress of the thread.   Updating a progressbar from inside a thread is a mistake. A solution to this would be to send a synchronized message to the…
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…
Add bar graphs to Access queries using Unicode block characters. Graphs appear on every record in the color you want. Give life to numbers. Hopes this gives you ideas on visualizing your data in new ways ~ Create a calculated field in a query: …
Have you created a query with information for a calendar? ... and then, abra-cadabra, the calendar is done?! I am going to show you how to make that happen. Visualize your data!  ... really see it To use the code to create a calendar from a q…
Suggested Courses
Course of the Month10 days, 19 hours left to enroll

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