Solved

MS Access Relationship

Posted on 2007-04-07
11
349 Views
Last Modified: 2013-11-24
Based on my customer and transaction database.. Can anyone make sense of the relationships bases on this table?
Customer
 
ID_NumberPK      Name      Address      City      State/Province      Postal Code      Country      Telephone      Account Balance
1      Lisa Manny      3900 Lewis Dr.      Novi      Mi      48377-       United States      (248) 564-6353      $3,500.00
2      Sara Johen      7638 Madson St.      Livonia      Mi      48326-       United States      (248) 474-7473      $5,000.00
3      Nathan Jones      16th Street      Northville      Mi      48327-       United States      (248) 848-4774      $4,500.00
 
Transaction
 
ID_NumberPK      Date of transaction      Description of transaction      Quantity of transaction      Money amount of transaction
1      2/2/2007      Cheque      2      $3,500.00
2      3/1/2007      Cash      3      $2,000.00
3      1/18/2007      Charge      2      $1,500.00
1      2/1/2007      Cheque      1      $1,000.00
2      1/2/2005      Cash      2      $1,575.00
0
Comment
Question by:shoris
  • 5
  • 2
  • 2
  • +2
11 Comments
 
LVL 3

Expert Comment

by:AbhishekSharma
ID: 18869638
What is this ID_NumberPk in both table...in customer table it looklike customer id...what it in transaction table..
0
 

Author Comment

by:shoris
ID: 18869641
in the transaction its Transaction_ID
0
 
LVL 34

Accepted Solution

by:
jefftwilley earned 500 total points
ID: 18869648
Customer Lisa Manny, who lives at 3900 Lewis dr. Novi Mi. 48377 US Phone 248-564-6353 has apparently made two payments. The first on 2/1/2007 in the form of a Check #1 in the amount of $1000.00, then again on 2/2/2007 with Check #2 in the amount of $3500.00

So the relationship is One to Many Customer to Transaction Where the PRimary Key in customer is the Foreign Key in Transaction.

?
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 34

Expert Comment

by:jefftwilley
ID: 18869655
You would do well to add another ID field in your transaction table that's an Autonumber to give your records a unique value. Chances are, the ID number in that table now is a simple Number...as it should be and is used as the FK in the relationship.
J
0
 
LVL 3

Expert Comment

by:AbhishekSharma
ID: 18869662
If it possible, I suggest you to break transaction table in two parts....one is main table and other sub table...

Main table...
Transaction id (PK)
Customer id (FK)
Date of transaction
Quantity of transaction
Amount of Transaction

Sub Table
ID_NumberPK      
Description of transaction
Money amount of transaction
0
 
LVL 34

Expert Comment

by:jefftwilley
ID: 18869687
We really don't have enough information to give you an informed interpretation. Generally....when payments are being made, they go against a total. This total would reduce with each payment. Now...if this database is for something like Donations..then that Total would be accumulative, and you wouln't need another table to store that...you just calculate it in a query/Form or report. What if your customer has 2 accounts, then they payment would have to be applied to a specific account number.

So truth is...we don't know
0
 

Author Comment

by:shoris
ID: 18869692
wow.. all that made sense.. amazingly.. How can i list the cardinality from these tables?
0
 
LVL 34

Expert Comment

by:jefftwilley
ID: 18869722
what is cardinality?
0
 
LVL 11

Expert Comment

by:flipz
ID: 18869804
The cardinality is one-to-many. One customer can have many payments.
0
 
LVL 34

Expert Comment

by:jefftwilley
ID: 18869851
Access has a tool called the Documenter

Tools/Analyze/Documenter

It will print out all the relationships within your database.
0
 
LVL 5

Expert Comment

by:rmaranhao
ID: 18870084
Try to run this:
(create a new query, got to SQL mode and paste the statement below)


select * from customer, transaction where customer.ID_NumberPK =transaction.ID_NumberPK  order by customer.ID_NumberPK


Sorry if the command is not New Query in english, in portuguese it's "Nova Consulta".
0

Featured Post

The Eight Noble Truths of Backup and Recovery

How can IT departments tackle the challenges of a Big Data world? This white paper provides a roadmap to success and helps companies ensure that all their data is safe and secure, no matter if it resides on-premise with physical or virtual machines or in the cloud.

Question has a verified solution.

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

This article explains how to reset the password of the sa account on a Microsoft SQL Server.  The steps in this article work in SQL 2005, 2008, 2008 R2, 2012, 2014 and 2016.
As tax season makes its return, so does the increase in cyber crime and tax refund phishing that comes with it
The view will learn how to download and install SIMTOOLS and FORMLIST into Excel, how to use SIMTOOLS to generate a Monte Carlo simulation of 30 sales calls, and how to calculate the conditional probability based on the results of the Monte Carlo …
Viewers will learn how to use the SELECT statement in SQL to return specific rows and columns, with various degrees of sorting and limits in place.

775 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