Newbie Trying To Create A Dependency Diagram And Determine Relationships
Feb 9, 2006
Hello : )
I am currently taking a database design class using Access 2003 and am looking for some help. I am trying to draw a dependency diagram before I create the tables based on the following attributes / fields in one table named Student:
StudentNumber, StudentName, StudentMajor, student's AdvisorNumber, AdvisorName, AdvisorOfficeNumber, AdvisorPhone, student's NumberCredits and student's Class (freshman, sophomore, etc.)
So far I have identified the Primary Keys as StudentNumber and AdvisorNumber and this is what I have:
Table #1 - Student = Student Number functionally determines Student Name, StudentMajor (?) NumberCredits and Class
Table #2 - Advisor = Advisor number functionally determines Advisor name, office number and phone
The problem I run into is with the the StudentMajor / Advisor / StudentNumber relationship. Since one student can have many majors and therefore many advisors since there is only one advisor per major, and each advisor has many students I am assuming it is a many-to-many relationship.
The problem I am having is determining the third table (and fourth if there will be one) and the relationship between StudentMajor / Advisor / StudentNumber.
Should StudentMajor be included as functionally dependent on StudentNumber? If it is there would be redundancy due to multiple entries in that field for each row so I guess I can't include it actually. :confused:
Wouldn't there have to be another attribute named AdvisorDept for this to work properly....that way there is a relationship between Advisor and their department they work in so I can link the student's major to the advisor :confused:
Any pointers and suggestions would be greatly appreciated
I have two tables i would like to create a relationship with but the two fields that i want to join are not exactly the same e.g
Table 1 0000111111
Table 2 111111 ABC
The key piece of information that i would like to link together is the 111111, in SQL i would just type "WHERE Code LIKE '*111111*'" or something like that.
Is there anyway i can create a relationship based on the data above?
I am building a DB for a nonprofit, and trying to figure out how to create a family relationship for contacts. Basically, it will be for mailing- so they receive only one, and to record donations.
At times, John and Mary Smith will donate together, and sometimes John Smith will donate in conjuction with an organization.
So, I would like the family relationship to be with John and Mary Smith, but also would like to be able to track that John Smith, but not Mary, is a member of that particular organization.
I would like the donations that John & Mary make together to show up in both their records, but the donations that John makes with an organization to show only in his record and the organization record.
Is this possible to create in access? I'm a bit stumped at this point.
I've never used Access much...i was able to use it OK at one point but ive forgotten all about it now. I need to create something very simple for the reception at my work...
When a customer phones we want to be able to keep track of how they heard of us - so we want a very simple access/VB program.
The best way would be to have buttons of each of the magazines our company is listed in..then when someone phones and says "ahhh magazine 3" the receptionist can press a button and the button will add 1 to a field in a table?/report? next to that magazine.
Hope that makes sense :s
Any help would be very appreciated! - It seems very simple to do ?
HR.zip. I'm trying to create database for HR and all the tables has to be linked with on table "PFEmployees (one employee has to be linked with all other tables "beneficiary,disciplinary,caruser,otherinfo etc...). Is it possible to do it.
Look into attachment relationship. I am really stuck with this.
I am writing a deposit recording database for archaeological layers. My units are recorded in one table, and then the relationships are recorded in a separate table. I have limited the recording of relationships to be either "same_as" or "below".
So in tblContexts is have say: 1,2,3,4,5,6
In tblcontextrels I have say : 2 is below 1; 3 is below 1; 4 is below 3; 1 is below 5; 6 is the same as 5
I want to view the deposits on screen in their stratigraphic sequence. So I think I need to write a piece of code to run through "tblContextrels" which will then create a hierarchy attribute. This attribute can then be used to sequence the context deposits I am looking at.
I am brand new to using access databases but I am in the midst of trying to set one up for controlled distributions of controlled documents.Essentially, I have three tables:
1) Listing of all our controlled documents and their properties (doc number, doc title, doc revision, doc type, doc status, effective date), 2) Listing of all our copyholders (name, location, phone number), 3) Document Distribution List which lists copy numbers, quantities, and medium to deliverable (paper, electronic, size, etc)
What I want to do is create relationships within the Document Distribution List (using 'add from existing fields') from the other two tables so when a request for a new controlled copy comes along, I don't have so much data redundancy.
For example, in Table 1, I have listed Document XYZ and copyholder Jane Doe from Table 2 wants to receive 1 copy of Document XYZ. I would like to have Table 3 have an added field from Table 1 where I can pull down the applicable document number, which when selected auto fills out it's corresponding details of title, revision, doct type, status and effective date in this Table 3. In addition, after I select the document Jane wants, I want to have another field added to Table 3 from Table 2 which lets me pull down Jane's name to assign her a copy number.
I have created a databse, that handles, names,addresses, items bought, and so on.
Because of this, the database uses the internal variable Date().
I recently fitted a new hard drive, and when I came to run the database, to print out addresses, it complained that a missing DLL (Iaiexplore.dll) was needed. I clicked OK, and every field or line of code that uses the Date() variable no-longer works without this DLL. Which is off because this particular DLL belonfs to the Intervideo WinDVD player! My database handles a lot of things, but it doesn't play DVD's!
If I create a new database, the Date() variable works, it juswt doesn't work in mine without that DVD player being installed. This has baffled me. I did have this app installed, but I switched to another DVD player, after fitting the new Hardrive.
For one-reason-or-another my database has a dependency for this DLL, and the Date() string won't work without it. And this of course, has a knock-on effect of stopping something else from working. I went to Macros/Tools/References, and removed it from there, but it still didn't cure the Date() problem. Although it didn't ask for this DLL again.
I cured it the last time by re-installing the DVD player, but this is ridiculous, and seems overkill.
I have a report that is driven off a query which in turn is driven by something like 20 odd queries
I have been asked now to produce the same report by a categorical area
Now my understadning is that if there is 3 categories for instance then i am looking at soething like 3 X 24 queries effort to get this working
Let me know if this is common practice among access applications because i had a feeling that this is quite long winded and was hoping for a quicker way of producing these reports
I am trying to create four tables: Company, Contact, Activities, and Opportunities.
I want them to relate hierarchically. A Company can have many contacts, contacts can have multiple Activities and Opportunities. But you can't have contacts without a company and you can't have Activities and Opportunities without having a contact. I want all PK's in all tables to link to one another, that you cannot create one without the other.
How I can do this in Access 2010?
YYMM00000-000000-A0000 CompanyID-ContactID-ActivityID or YYMM00000-000000-O0000 CompanyID-ContactID-OpportunityID
Does anyone know how I can, as stated, change a report's query dependency? I copy and pasted several reports and want to make macro buttons to access the reports and put them on a form. However I want each button to point to a different query, which in turn point to different reports.
When I copy and pasted the reports, I go into "Objects that I depend on" and I can't change the query it points to! Help!
Can anyone point me in the right direction to produce an application diagram.
Sort of a map of an app, what data it hold in laymans terms rathers than table and field definitions. What forms do what, and how the whole application fits together.
Hello I would like to make a table Relationships diagram to enforce referential integrity.
I wanted to make this diagram in the Back End container but I realized if I want to delete a corrupt table I have to delete the relationships as well.
(My clients might need to delete an individual corrupt table and replace it with a previous copy. This will cause the relationship to be removed and I don't expect my clients to re-establish this relationship.)
My question is: What if I put the relationship diagram in the Front End container? Will this enforce all the integrity rules? I assume if I put the diagram on the front end ... the user can replace tables in the Back End and the relationships diagram will be unaffected on the FE.
Any input on this topic would be appreciated thank you.
Hi i'm building a database with access for a computer business which sells computer products. The database is going to be from the point of view of the business not the customer. I'm having some trouble with the Relationship diagram, so far i have done this http://img509.imageshack.us/my.php?i...atabasefa1.jpg
The aim of the database so for the customer to purchase product, and the business records this transaction. Its from the point of view of the business not the customer. The business uses a supplier for its products and has no physical stock on hand.
Is there an easy way to get an explanation of where each query within the Db gets it's data from?
I'd ideally like to get a hierachical model - be it as a diagram, text, or whatever - along the lines of
QueryABC gets data from QueryD and QueryE QueryE gets data from Table1 QueryD gets data from QueryX QueryX gets data from Table2
I've only just needed to look at the existing queries in this Db in any detail and I'm hoping there's some faster way to sort this out, rather than manually opening and listing each one.
Hello forum,I am new to designing databases and am excited to learn everything I can. I have read about normalization and relational structures and just need some assurance that I’m on the right track. I’m not looking for someone to design this database for me but am looking for someone to help critique what I have so far which is some user requirements and a RSD. My RSD is attached below.What I am building is a database to track carpets that have been cleaned in rooms which are in buildings. Employees clean carpets in rooms in a building. Many employees can be assigned to a carpet cleaning project. Employee’s record which building they are in, what room's carpet they are cleaning, what day and time they started and ended cleaning, what materials and method of cleaning they used, and the reason for the cleaning. Depending on the reason, the customer is charged a certain rate per hour of carpet cleaning. I am hoping to be able to query from this database to be able to answer, when the last room was cleaned, how long did it take to clean a room, and how much did it cost to clean a room. Some questions I have are: What attributes should be included in the PROJECTDETAIL table and not in the PROJECT table? When should I create a table showing DETAILS of an entity? How do I know when I should have an associative table or correlation table? Am I on the right track in creating this database? Thanks for your help!
I need some help. I have to design a relational database for a small bookstore that operates 3 stores.Books are sold by a sales person to a customer through an order. A order may consist of one or more books but assume that for a given order, all the books sold are all from one store and are sold by one salesperson.
Field name Address Author ID Author Name Book ID Book Type Book type description City country Cust ID Cust name Cust Type Cust type descr Email On hand Order date Order no phone number phone typr phone type descr postcde publisher ID Publisher name quantity salesperson ID Salesperson name Salesperson Phone Selling Price Store Address Store City Store email Title
I am developing one software in access 2000. Now where i stuck up is ... Customer is asking for " process flow chart" (steps in block diagram). The requirement is as below..
For a pen there are below operations 1. moulding 2. cleaning 3. polishing 4.assembly
Now these flow of operation is to be presented in block diagram. Please suggest me how do I do this in accesss? (in form or report)...
hi everyone, this is first post, i have this task and i think i have the solution but im not sure, so plsplsplspsssssssss someone help!!!! its called class scheduling. below is the physical model. i need to make the logical, i have been told that course and section share a many to many relation as well as section and faculty and also bwee/ faculty and course, thus the creation of the intersection tbl, the OFFERINGS TABLE. i have inserted the foreign keys (FK's) into that table (which are the primary keys for the 3 main tables). what i need to know is that: 1. do i need anymore FK's? 2. wen i make my logical diagram, do i show it like the way i have shown it in the word file? i made it as such that course and section have the PK of the 2 tables and are now FK which allow duplication ie 1 course can have many sections etcc pls helpppppppppppp
Courses table CourseID (PK) Title Credits
Sections table SectionsID (PK) Days Time
Faculty table FacultyID (PK) Firstname Lastname department Title FullTime or partime hiredate
Using access 2010; anyway to create an er diagram from an existing database? I have inherited a fairly large database and need to make changes to some field properties and need to find out where these fields are located. I know I can go into tools and run the documenter but doesn't give me an easy format to look at.
what means a table to appear as an entity on the diagram? And how to identify the cardinality of a relationship and how to specify which is mandatory and which is optional.
All I have taken over a database. It has dozens of queries. Is there a tool or code that I can use that would quickly diagram the querie like a flowchart telling me what queries are related and the steps and so on.
1.) pink arrow // I've changed the titel in a diagram with vba ... is there also a methode to move the position of the titel with vba ( left-center or rigth ? )
2.) red arrow // maybe its because of the titel placement.I would like to change the size of a diagram with VBA code to have the diagram fit nicely to a given space best thing would be if there would be a possibility to resize the diagram in the given space
I am creating an EPOS system for a bookstore and I have a many to many relationship between the transactions table (tbl_transactions) and the products table (tbl_products) using a link table (tbl_linktblproductstransac). The below diagram shows what i mean below:
I made it many to many because 1 transaction can have many products on it and 1 product can be on many transactions.
Now what I need to know is how will i make records with more than one product on one transaction (in the table itself or in a transaction form). I would really appreciate if someone could help. Thanks :) and have a good Easter
I have upsized from Access 2003 to SQL Server 2008 R2 using upsizing wizard. Everything works fine. But I don't see relationship in SQL SErver 2008 R2 if I go to database. But I set relationship in Access 2003 before upsizing it.
Amso I don't see relationship (diagram) in Access 2003 , which I was able to see before.
So do I need to again recreate the relationship amongst the table in Access 2003 Or SQL SErver 2008 R2 ? I thought, if you link tables, everything should be taken care but i don't see relationship structure any more.
