Creating One To Many And Not One To One Relationship?
Nov 1, 2014
I have a database assignment where I need to link some tables. One is a table with a composite primary key and the other is a table with a regular primary key. The composite key is already linked in a one-to-many relationship with the first of its two fields; the problem is the second field also needs to be in its own one-to-many relationship with a different table. Access keeps creating a one-to-one relationship. I need it to be a one-to-many relationship.why this might be happening?
I have a table with all the job information for each of our jobs. I want to create another table with a job notes field that is linked to the job info table above. My main goal is to be able to make a query or report for the job notes on all our jobs on a specific date.
Q1. Is there a way to link the job info field with the job notes field where the job # and job name information will automatically populate into the query?
Q2. How do I build a relationship between the job info field and the job notes field. I tried to link them, but when I do the query the job # and job name fields aren't being populated, it only shows a single blank row for the whole query.
I have started a new project where I have tables of people, organization, and roles, as well as one that is supposed to contain the relationships among them. In all four tables there is an AutoNumber ID field as the primary key. The fourth table, the relationship table, has as foreign keys, the primary keys from the first three.
I have created a form with a combo box for each of the three main tables. The intent is for the user to select a person, an organization, and a role, and then click on a button control that will create the relationship in the relationship table. What I am trying to do in the code is, using an AfterUpdate event procedure for each of the combo boxes, open the appropriate table as a recordset, find the selected record, and set a form-local variable to the value of the ID field for that record. So far, I can't get past the first combo box. Here is the code I have written, including both the form variable declarations and the AfterUpdate code:
Option Compare Database Dim personID As Integer Dim orgID As Integer Dim roleID As Integer Dim rsPerson As Recordset Dim rsOrg As Recordset Dim rsRole As Recordset Dim rsRel As Recordset
[code]...
The error message I get is Compile error: Object required, with the personID reference in the last statement highlighted. (qryPerson is a query based on tblPeople that combines first and last names into LNFN.)
I have about 600,000 records in an excel sheet and tried using the table analyzer but I run out of memory. Instead i have broken up my giant table into a few other tables with their own primary keys and have populated from a maketable query. I related the tables together in a 1 to many and many to many table and one of the subforms is working great. The problem i am having now is with the many to many table (WorkedJunctionTbl). I don't want to have to manually input thousands of lines of data, so is there a way i can populate the data from the original data correctly using the new autonumber primary keys?I can't seem to get an append query to work correctly.
Hi, I’m having a problem creating a form for easy data entry. Let me give you a little background. I have a database for a tutor program, students request a tutor for a class, and then I fill out a follow up report to find out if they are being tutored or changed their minds. Next I enter the contact information indicating the date and time of their tutoring session.
Students can be tutored in more than one class but they can only have one tutor for each class.
I have a form where I enter the tutor request info and sub forms for their classes, follow ups, and sessions. Ideally I would also like a form just to enter the session info. I want a combo box to select the tutor and then a sub form to select the tutee with a combo box which will auto fill the Subject, and Course fields, and field to enter the date and contact hrs.
I think the problem is with my relationships. I’m just kind of stuck. I think I need to create a form based on a query but I haven't done that before. Any help would be appreciated. Attached is a screen shot of my relationships and of my current form for your reference.
Hi, I am new here and need some help with MS Access97. I am looking for a more convenient way to join tables together. The usual way that I know is to drag the field(s) in one table and drop it in the other table (within the relationship window).
Is there any other way that I can do the same without drag and drop (keyboard instead of mouse)? This is real problem to me when I need to do some modification and have lots of tables scatter across few pages and the vertical scroll of the Relationship window is not working properly with drag & drop technique.
I have a relationship between two tables; the parent table is "Client Information" with a primary key of "Client_ID", the child table is "Event Information" and the foreign key is "Client_ID".
I know that within the Event Information table I can select which Client_ID to use as the link. I want to have that done within a form, however. I have a form for Client Information with a subform for Event Information. If I go into the table and manually set the Client_ID then everything displays fine.
How can I set the Client_ID in the subform to automatically match the Client_ID in the main form? I can only assume that these solutions require the parent/child relationship to already have been established.
I have a Client database table in Access. I now need to add a simple order table (related) to the client table. I have a client ID field set to autonumber in the client table. As I start to create the orders table I'm not sure how to link the two so that I'm not entering data twice and have assurance that they are tied together.
Each each record in table1 has a unique four character (alpha-numeric) code to identify it. The first two numbers of this code represent the group it is in. (Ie. 15AB and 1502 are both grouped together) The second table stores values that apply to the entire group. I need to create a relationship between these two tables based on the first two characters in the ID field.
Things I've tried: * Making a calculated field with left$() formula - Access doesn't allow relationships on calculated fields * Create a new field for just the first two characters and create a data macro for after update and after insert to update that field with the expression - cannot edit the field the user is on
I've been tasked with creating an Access database..We have a main table that includes information found on every lease, however there are 3 leases types. Each which lead to another table or two. Basically, I want to create a form that allows me to link the main table with the corresponding variable tables.
Clients may include those who needed advocacy services. Clients table counts by every visits, not by per person.
However, with advocacy, I need a mean of tracking actual person.
Right now, I have one to many relationship from client.clientid to advocacy.clientid, but seems to not be the right solution as I would get duplicate advocacy records when there should be only one advocacy record per person with many client records (as in visits).
The duplicates is created whenver a name is chosen in the combo box in the Advocacy form, to which a new AdvocacyID is assigned to the same person. It shouldn't have done that.
What I can do to ensure that there is only one unique Advocacy record that can be referenced by several Client records?
I created two tables, but i don't know what kind of relationship i should create.
In the first table, i would like to put all different tests (medical tests, such as EMG test, and so on), in the second table, i want to add the settingup for each test, say, recording site, stimulating site et.al, then i want to use one form to populate data into these two tables, what should i do?
I am creating a database for creating quotations. The quotation number is generated using the date, for example the first quote today would be quote number "05202015-1" because it is the first one today. The next quote today would be quote number "05202015-2" and so on. Is there a way to make access automatically generate these quote numbers based on the date?
Hi All, I am new to access and this forum, so hello all.
I am trying to build a database to keep records of my bird sightings. As you might have surmised; I am a birder.
I have come to a holt on creating a complex relationship between the Bird Entry From and the table that contains a list of British birds.
In Bird Entry From two of the fields are for entry of the bird name, one field being the Common Name and the other being the Latin Name. They are both drop down lists that contain all the birds from the table, this being done by import data. The table that holds the bird list has two fields One is called Common Name and the other is called Latin Name, this being the same as the filed names in question in the Bird Entry From
This is where I am coming unstuck. What I would like to happen is that when I enter a bird in the Common Name field (either by typing until the bird is auto entered from the drop down or using the drop down to find the bird) it automatically enters the Latin name in the Latin Name field and visa-versa, but I have become very frustrated with trying to do this.
Am I wasting my time? Or is it possible? And if so would anyone be kind enough to tell me how?
Video (Vcode, VTitle, Date Made, Director, Genre) Copy (CopyNum, Vcode, Due Date) Loan (LoanMemNum, CopyNum, Ldate, In, Out) Member (MemNum, MName, MAddress) Reservation (VCode, resMemNum, Resdate, CollectDate. Collected Not Collected)
I've three tables in my database, tblInfo, tblSavedInfo & tblCountry. for tblInfo I have this fields - Ref: Cost: RefCountry: for tblSavedInfo I have this fields - Ref: Cost: Country: for tblcountry I have this fields - RefCountry: Country:
My problem is when I save from tblinfo to tblSavedInfo I want it from RefCountry on tblInfo check wich country is on tblCountry and save on tblSavedRef the country instead the refCountry.
As tblInfo has about 200.000 rows I need something to make it quick. Is there anyone that can help me please.
Any advice? I've tried some things and no success with linkage
Rooms Table RoomID Room No Type Desc
Project Table Project ID Project Desc Faculty Assignment Project Grant No Sponsor Project End Date
Student Table Student ID Students
Many rooms with many projects, many of those projects in many of those room, with many students working on those projects. Many rooms, many projects, many students. Argh... I've already tried two junctions between rooms and projects // and projects and rooms
As you all know Im not a expert on databases but work in a volunteer basis in a small community area where we have no money for people to do anything for us. Im proud because I did the other database and its up and working but this one has got me beat. Im setting up one for the volunteers, which has computer knowledge, any basic training they need, when they are available and what tasks have been set for them. I need to have a one form which has just their personal details but to be able to put in data on the other forms and it will link back to the volunteers name. Ive attached what Ive done and Im sure your all going to laugh - but any help would be appreciated
Each student will be assigned to one, and only one, rack. There will be 3 students to one room. One student can only have one room but a room can have many students... I store studentID in the rackOne, Two and Three fields. My problem is when I try and querry for the information so as to display actual names rather than ID's. I'm not sure If my querry is the problem or if I've set the tables up incorrectly. Any insight is much appreciated.
I have a one to many relationship between the movie and date between the attendance and movie data table. I have tried linking the name to the usher fields but I"m not getting the result I want. I want to be able to open up the volunteer table and have it show me the movies they have worked on. The movie data table will list who worked it, but the volunteer tables are not.
at one point in my database I have two tables and for everyone record in one table I may have either 1 or 0 records in the other. How do I express this in access design? Since it's an optional 1 to 1 relationship I guess?
I was wondering if anyone could help me with a query. Basically I am doing (or trying to do) a small database to track childrens progress in my mums primary school. I'm doing this for free as the budget is rubbish for this type of thing and i dont have enough knowledge to ask for payment anyway! I want to get it right from the start and I think if I get the relationships right initially then I can complete the rest of it on my own. I did this at university (normalisation etc) but ive not used it since i left in 2002 and so have practically forgotten everything i ever did.
Basically, the child comes into the school and is predicted a level in maths, reading and writing. Then in the october, feb and july of each of the 2 years they are there, they are given actual assessment levels. They are also given a prediction level at the beginning of year 2.
So far I have one table with student no, surname, first name, gender, ethnicity, year group and SEN(special educational needs) - with the primary key being student no.
This is where I get stuck - do I go for a maths, reading and writing tables and split it that way - or on an assessment basis, so prediction yr1, october yr1, feb yr 1 etc etc. Or is this completely wrong? Am sooooo confused, so any help would be greatly appreciated.
The outcome I want is to be able to query a childs progress, so for example: show children who achieved a 1a in yr1 maths, and then out of those children, who achieved a 2a in y2 maths (as this is the required shift in progress set by government). I really hope that makes sense.
I'm rebuilding my database from scratch now that I've learned a bit from the forums about developing a proper database and I want to investigate whether I have the relationships set up correctly, as I seem to be using lot of one-to-one relationship, which most articles say is very rare, and whether I am formulating many to many relationship correctly. Here is a screenshot of my relationship.
If I've understood this correctly, one-on-one is desired if you have a subset of data that is applicable to the main table only occasionally and is dependent on the main table's data. Have I used that correctly?
As for many to many relationship, articles say this is formed by having two one to many relationship linked together in a table. In my screenshot, you can see that tblAdvocacyVisit is the linking table. However, I've set GuestID as a one-one relationship whereas ClientID is one to many relationship, reasoning that since I do need to relate the Guestl Logbook data to Advocacy table for some queries I will be performing later, this will save me some work. I'm afraid that this may compromise RI or something like that. I can simply add a PK autonumber to tblAdvocacy to revert the GuestID as a one-many relationship, but can't see how that would not create more work in queries or so...
Oh, are the lookup tables supposed to be related at all?
