Hi!
I was just wondering about the relationships between tables in a split BE/FE setup. If you have set up the relationships in the BE, do you need the same relations set up in the FE relationship window?
Any insights to this will be greatly appreciated.
Thanks in advance.
My db is split into front-end and back-end. In the f-e's Relationships schematic, I can see the relationships as they were defined at the time when the db was split, complete with the one-to-many symbology.
I can add a new table to the b-e and set its relationship as one-to-many, enforcing referential integrity and cascading as I wish - and the schematic (in the b-e) reflects that.
In the f-e, I can then use the <Get External Data - Access Database> function to link to the new table, and I can add the new table to the relationships diagram in the f-e. I can also drag and drop to link primary and foreign keys (within the f-e), but cannot select one-to-many. I'm OK with that, as I understand that the relationship is within the b-e, and this is just a diagrammatic representation.
But I can see the one-to-many relationships between the tables which existed when the db was split, and I would like to be able to see the new table's relationships in a consistent fashion. Updating the linked tables via the Linked Table Manager does not do the trick.
Surely I don't have to split the database again in order to achieve a consistent diagram - do I ?
Hi all. I really need help with this. Does anyone see a problem with my relationships , i have attached a copy.
Any help will be greatly appreciated
ClaireB
I am new to database design and curious about relationships. In a hypothetical situation, if I have four tables: tblProducts, tblOrders, tblEmployees, and tblCustomers, how could the relationship be set up?
The Products are stored to keep track of the quantity on hand and the employees will also need to be tracked as to how many products they sell. Customers are recorded and Orders wrap up all three tables with the fields: OrderID, ProductID, EmployeeID, and CustomerID.
Would it make sense to say that many products can be bought by many customers and/or many employees can place many orders.
Hi
I've selected a number of tables to the relationship window. When I drag the primary key on one table to the corresponding foreign key on another table, the link created is one-to-one. I want one-to-many. Why did it create one-to-one? How do I change this to one-to-many?
Thanks
Hi all. I am new to the use of access and have been told that I need to create a one-to-many relationship to be able to have several records from a drop down list saved to one unique number (my primary key).
Is this correct and if so how do I do this? If it is not correct what is the best way to do what I require?
Thanks for helping.
Hi
I have created two tables which are linked with a one-to-many relationship
Using a form the user enters a date. Then in VB I add a value to the date and store this in the second table.
I have simplified this to try to find out what was going wrong and found that when the database adds a value to the second table which only has two fields it first of all adds it to the begining of the record set and the id field does not update to that of the first table where the relationship is joined.
Do I just captutre the value of the id field and add this to the recordset.
How to I get the database to look foir the end of record set before I appent the new generated record.
Hi. I am trying to creat some sort of security for my database so none else make changes to design of the database apart from me. I have got a small database that i run on the company network i work for. all the staffs have a short cut of this database on ther desktop where they can add/edit/view data and unfortunatly able to change design of the database if i havent set the startup to only show switchboard. what I want is this:
Open database, switchboard popup and nothing else(ie. database window where you can see table,forms,queries)..sounds simple..but havent able to do it..
people say use database split...not so sure on...by the way, I DONT WANT OTHER USERS TO HAVE PASSWORD TO ACCESS THE DATA...hint,,no password and user name popups....
i am kinda new to access,,pleeeeeeeease help
Hi. I am trying to complete my access database by creating some security for it. I want to know how to setup the database file so when I execute, let say in my document folder so that when it opens it only shows my switchboard and not the editable(table,queries...) panel on the left hand side. I know i can hide it via the startup option but I want to completly blocking it so it doesn't allow any user to edit the design of the database.
If anyone can help I realy appreciate it...thank you
Hi,
I have looked for this on the help section; however, it does not seem to be covered. How would you change a one-to-many relationship to one-to-one? Access seems to automatically guess that the many side is where the foreign key.
Can it be changed from Access or is entirely on how you design your tables?
Thanks,
Bee
Hi !!
I am doing a school project on a school database. In my DB I have a table with all students records (eg. Student ID, Name, Surname, DOB, class etc) and I have another table where the student fees payment slips will be printed.
The fee table will only have the ID, name, surname and class fields and fee will be input for every student for every term.
I want the fee table to get all the info except the fee from the first table automatically when I give a student ID.
I have created a one to many with only Student ID fields linked, NOTHING.
Then I tried to link many fields on each side (eg Name to Name, Surname to Surname etc) but I got a msg "No unique index found for the referenced field in the primary table"
Plz help me !!
Thanks
would having a db with several tables and NOT setting any relationships up in the relationships window affect the db in any way?
i have such a db, which originally had all the relationships set etc. however, as i encountered errors and had to replace tables and delete entries, i must have at some point deleted all the relationships.
i just relaised that the db now has no relatioships set up (all the primary keys are still in the tables) so i'm wondering if this matters?
cheers
Jose
I'm trying to define relationships between a few tables in Access 2003 and It's only doing a one to one. How do I get it to do a one to many?
View 5 Replies View RelatedPlease someone help! This is very urgent!
I am designing a database for a clinic
basically,
One Form is a Demographic Form, which was been designed. Each person was given an identifier code.
However, they all did 3 questionnaires. Each one of them has their ID code on it.
Is it possible for me to make a query so that when I search ID code, it actually brings up all the information on every questionnaire?
If I have a table "tblContinents" with just two fields ContinentID and Continent and I have another table called "tblCountries" with three fields CountryID, Country and Continent.
After reading several articles, i decided not to make the Continent field in the tblCountries as a lookup field but rather I will do that at form level via a combo box. In such situation, since i am not creating a lookup field at table level, do you think that it is necessary to create the relationship between the two tables in the "relationship window", or shall i just leave it as it is, and if the need arises i will create such "relationships" in queries?
Thanks very much.
hi, im new here and i dont really know much about databases with access. im currently doing an assignment at school requiring me to do a entity relationship diagram for all my tables, which i do not know how to do. Can anyone please assist me asap? thank you very much in advance
below is the link where i uploaded it because it was too big to be uploaded onto this post. :)
http://www.megaupload.com/?d=E6AU28CL
In my Db I have TblQuotes & TblQuoteItems
I want the one-to-many relationship to be based on my own generated quote reference rather than the PK/FK.
My quote reference looks something like this IN123/10
Does the character '/' cause a problem with creating the relationship as I get the error message "No unique index found" even though I know that they exist?
Thanks
When I view the relationships window, not one of the relationship connector lines (whatever the technical term is) do not show up! I click view all relationships, view direct relationships. I restarted my computer, restarted Access. Nothing!
I know I have relationships because when I am table design view I try to change something that I know has a relationship and it doesn't let me because it says I have a relationship.
What is going on!?:mad:
Hello..
Here is what I have. The database is made up of three tables (see below and see attachment). I have it set as one event to many ethnicity's and many personnel with the event ID as the PK in all three. Did I do this correctly? I thought I did and I had a form with each one of these running correclty but now it is not working.
tblEvent
EventID(PK)
tbleventEthnicity
EventID (FK)
tblPersonnel
EventID(FK)
See attachment for the other fields.
Can someone just check to see if I set this up correctly or what I should do differently?
Thanks
I have already made a relationship 1 to many, i want to add another relationship. I put the name of the feilds i want to join up in the drop down box. I put "enforce in..." and "Casgade update related fields" on and join type 2. Then when i press ok, it comes up with "file title " to "film title" and comes up with "no unique index found with the referenced field of the primarytable".
Does anyone know what this meens?
I am writing a access database for work(fire dept). It is a database for the vehicle checks. Most of the fields are Boolean fields we just need to know if the inventory is on the unit. I am kind of new to this. My tables so far are as follows:
TCardiacMonitors
TFirstInBags
TGlucometerKits
TIntubationKits
TUnitNumbers
TCompartmentNumberOne
thru
TCompartmentNumberEight
TSealNumbers
TEngineChecks
all list the inventory that is supposed to be in that table
Everything is dependant on the Vehicle it is on so my question is Do I relate everything to a look up field in TUnitNumbers(intUnitNumberID) or is there a better way to do this? I need to relate everything to the date it was checked
Thank you for your help Bill
OK. I'm not real sure how close I am on this. I have a feeling I'm not too close so I was hoping I could get some help. I have a database with 11 tables. These can be seen in the screen capture attached. For the 'Action Taken' table there are 10 fields for 'Departments Involved', 15 fields for 'Memo Sent To', and 15 fields for 'Job Title'. The 'Departments' table is linked to 'Departments Involved1', the 'Memo Sent To' table is linked to 'Memo Sent To1', and the 'Job Title' table is linked to 'Job Title1'. All the other tables are showing the fields that are in that table. When I enter a record and try to go to a new record it gives me the following error message.
"You cannot add or change a record because a related record is required
in table "Background Information'."
I'm not sure what to do about this. I'm sure there is a simple solution but I don't know what it is. I am pretty new to Access (this is my third week on the job) and a little confused on some things. I would appreciate any help you could provide.
Hello. I'm new to databases and anything I know I've read up on. I know that relationships are essential so I'm trying to sort a database in ms access that I have inherited at work. It contains health service staff and their record of training - various training that they do regularly. I've managed to put the data in 1nf but am having difficulty after that.
A couple of questions:
If I give each staff member a unique id do I need to link their job title to it? Job titles chang quite a lot.
Other information about courses, dates of training, trainers etc. - should they be linked to staff name via separate tables?
I'm using a spreadsheet example from microsoft that shows me how to go from raw data to 3nf but I'm not sure how to split the information, so if you have any suggestions or know any good guides I'd be grateful for your help.
Thanks.
I have 2 tables. tblcontact and tblboat.
tblcontact
CustomerID-PK
Customer
Contact
tblboat
CustomerID-FK
boat
Serial
i have made a form to enter the data, all works ok. I built a form to search by customer and it works fine. I can not find a way to build a form to search by boat name or serial. Can some one please help?
Thanks in advance!
Tim
Hello. I posted a while ago on a database I'm working on. Still having trouble with relations. These are the fields in 1nf:
FNAME
LNAME
JOB_TITLE
BASE
DEPT_WARD
COURSE
DATE(S)_ATTENDED_COURSE
COURSE_TRAINER(S)
COURSE_VENUE
CERTIFICATE_ISSUED
The database keeps a record of various training courses for health service staff. From answers to previous posts I figure I need:
TBSTAFF
STAFF_ID
FNAME
LNAME
JOB_TITLE
TBCOURSE
COURSE_ID
COURSE
TBTRAINING_DONE
STAFF_ID
COURSE_ID
DATE_TRAINED
TRAINED_BY
CERT_ISSUED
I think that's ok but it's when I try to link them I get into trouble. Assuming the above is correct do I have:
TBSTAFF linked by STAFF_ID to TBCOURSE-COURSE_ID
TBSTAFF linked by STAFF_ID to TBTRAINING_DONE-COURSE_ID
I'm not sure how base and dep/ward work either. I need to know a person's base and dept e.g. hospital x, ward y.
Thanks.
I'm trying to create a db to store for example Company Details, Staff Details, and Address Details.
Each company may have multiple addresses
Each staff may have multiple addresses
Each Address is EITHER a company/staff address
The address table structure is the same for both Company & Staff
I have come up with three solutions, each of which does not seem correct.
1) Create two Address tables each linked one to many from the Company/Staff
PRB: Duplicate address tables seem inefficient and queries/future modifications will need to be duplicated
2) "Tag" the address table either by adding an additional field specifying if Company/Staff, or programatically manipulate the key (+ve = company; -ve=staff)
PRB: Lose referential integrity: extar manipulation of queries, code etc.
3) Create a Junction Table with fields for the Address Key, Company Key, and Staff Key.
PRB: Not really a many-to-many (as Each Address relates to one of Company/Staff); Not normalised as either the Company or Staff Key will be empty
I'm sure I must be missing the obvious, but any suggestions would be greatly appreciated.
:eek:
I am having some trouble with parent/child relationships in my tables. I know what I need them to do, I just can't get it done. Please help!
see attachment:
I need my tblDescription to be the parent.
I need tblchecks to branch from tblDescription.
I need tbllocation to branch from tblchecks to make everything jive in my world.
Thanks to anyone that can help,