I am trying to create a main form that selects a series of values allowing the user to enter new data or edit current data (using other forms). I have a series of cascading combo boxes that populate accordingly and become visible after update. I can successfully create the series and add new data and edit data as in my code.
How to populate the junction table from the forms so for example when editing or adding a new site it not only populates the tblSites and the tblSitesContacts it also populates the tblClientSitesJunction with values from the frmSites and also cmbClients. If I use the wizard and try and add values from all 3 tables to form it doesn't work and I am not sure how to add the ClientID and SiteID manually to frmSites.
trying to understand how to create a form with a Junction table. This design will allow a book to have more than 1 author.
Author table Author ID AuthorName
AuthorID table (Junction table) AuthorFK BookFK
Book Table BookID Book Name
Author table has a 1 to many relationship with AuthorID table and Book table has a 1 to many relationship with AuthorID table. Now how do you create the forms? Do I need a main form FrmAuthor , subform FrmBook and a frmAuthorID
I've established a many to many relationship using a junction table.
So I have 3 tables (A for "materials", B for "batches", and J for "junction")
Form A is linked to table A, and contains a subtable linked to a query from table J. This allows me to input materials into table A and then list all of the batches it may be used in that are in table B. I successfully got this to input all the batches and materials combinations in table J.
Now on form B, which is linked to table B, displays the batch information, with the subtable J.
My problem, is that only the materials primary key is showing, not the other information that should be linked from table A.
I am trying to set up a Real Estate database, and can't get the Relationships to work. I have three tables:
House Listings Farm Listings Clients
Clients can have properties in both House and Farm Listings Tables, so I need a Junction Table (or do I need more than one?)
The Primary Key fields of House Listings Table (HouseID) and Farm Listings Table (FarmID), become a composite Primary key in the Junction table. Is this correct?
Both the House Listings Table and the Farm Listings Tables have a field for Client ID. Is this causing me problems, as I can get the Farm and Clients Queries to work, but not any queries with the House Listings. As this is my first attempt at creating a database with many-to-many relationships, please explain in simple terms what I am doing wrong.
I have a form with various list boxes that display options based on a query. When options are selected the text relating to them is populated in a seperate text box at the side.
The problem im having is when I select options from the list box I want it to store the selected options in the table that holds each record when the form has been filled out and submitted. At the minute it populates everything into the table apart from the options selected from the list boxes.
Does anyone know how to do this?
Thanks in advance
Edit: I have got the control souurce of the list boxes set to the correct field in the table.
I hope you can help - I have two simple problems and one slightly more complicated problem (bearing in mind I'm quite an Access Novice!)
Problem 1. I have set up a simple form for a Timehsheet where the user can select a project and then enter hours worked in 7 text boxes for Mon-Sun. Then I have create a Total Text box at the end of the row. I need the Total box to Sum up the hours from the 7 boxes dynamically. How does one do this?
Problem 2. How do I then ensure this calculated field populated the field hoursID in tblHours? (I am able to do this with a normal field, but with a calculated field, doesn't the formula go into the Controlsource field??)
Problem 3. I plan to put this form as a sub-form into a main form 4-5 times so that a user can select 4-5 projects to enter hours against. I would like to have a SUBMIT button on the main form, so that all the calculated hours and selected projects populate the respective tables ONLY after this button is pressed.
I'm working in the petro-chem and industrial service industries now, and am finding there are relationships I haven't had much exposure to in the past.
Can someone please help me with constructing the tables and relationships needed here?
This is something I should probably know, yet I've never created junction tables which must take into account nested data. I have created a relationship which works, but I feel it could be done in a simpler fashion.
By the way, I cannot find Pat Hartman's many-to-many sample db. It is either missing, or the restrictions on word length in Search just aren't letting me find it.
Table: WorkOrder is the primary table I'm working with. I need to store 4 pieces of information for every WorkOrderID, two of which have subs.
I’m having trouble defining Relationships I’m thinking I need a “Junction” Table and I have tried looking at the Orders.mdb but it hasn’t helped (I’m sure I’m just missing something) I just don’t see how it works. If at all possible please don’t just give the info try to help me understand so I can get the answer myself. Here is what I have: Far table: FarNumID (PK) > autonumber FarNumber > Text “224-10C” FarTitle> Text
FarParagraph table: FarParaID (PK) > autonumber FarNumID > Number FarParaTitle > Text FarParaText > Text
AC table: ACNumID (PK) > autonumber ACNumber > Text ACTitle> Text
ACParagraph table: ACParaID (PK) > autonumber ACNumID > Number ACParaTitle > Text ACParaText > Text
1. Each FarNumber can have only 1 FarTitle 1:1 Each FarNumber can have many FarParaTitles 1:Many Each FarNumber can have many FarParaText 1:Many 2. Each FarTitle can have many FarParaTitle 1:Many Each FarTitle can have many FarParaText 1:Many 3. Each FarParaTitle and have only 1 FarparaText 1:1
All I ever seem to do is sit about trying to figure this out and then give up and ask for help :(
I have three tables.
One for contacts One for groups (groups like people attending meeting a, b c) and a junction table as the top two create a many to many relationship.. one person can be part of multiple groups, and a group can have multiple members.
In the contacts table my primary key is an auto number, and is contactsID I also have some contact details, and a groupID field
In the group table my primary key is GroupID and is an auto number, it also have group name, and description
in the junction table I have a primary key, then GroupID, and ContactsID which are also set at primary keys and are set with the same values as the same named primary keys in the relavant tables (I beleive this defines them as foreign keys... i hope so anyway!)
I have the relationships set up as a one to may relationship from contacts to junction and groups to junction, contacts linking from ContactID to ContactID in each table, likewise with the Group table.
However, when I try to put everything into a main form for contacts,with a subform for groups, all I am getting is the autonumber... which isn't much good for my end user..... :( How do I solve this?
Hi all ... been awhile since I have had to create a database so I have gotten a little rusty. :eek: I have a form where some of the fields I have formulated to calculate an amount. Example... =[GrossAmt]*[FeePercent] This is calculating into the form correctly but not writing to my table for that field. What am I doing wrong or missing here?
Sorry for posting into another thread about this, but here's my problem:
Hello All. Finally getting my pride out of the way and asking this. I've searched and this is the closest question pertaining to the problem I'm having. I have created a form to populate a table in Access. I've created Lookup fields for parts of the table that will get data from another table/tables. I want a certain part of the form to auto-populate data based off of the last name I put in the initial Drop-down box. Say, I have a person with a last name (and there are several with the same last names), I want the remainder of that line in the form/report to populate with his/her data needed for the form letter. Unfortunately right now, I have it where we have to select each from a drop down menu, for both last names, first names and other data needed. I've tore my brain up trying to figure out how to link the data in each one of the combo boxes to the first combo box. Any help would be appreciated. These are driving me nuts as I should be able to figure this out and it's just escaping my vision I guess. Thanks in advance for the help.
I have created two tables. One table list of 100 Categories that I monitor each month. The Categories are never changing month-to month, however, each might be associated with a different client month-to-month. Presently, I am manually typing in the Client information month-to-month with information pulled from the Client's table. The Client's table has a Category Field which is populated when a Client has purchased space to use it.
In essence, I have the Category Table (Fields: Record Number; CategoryName; Client Name; beginning date the client will use the Category and Ending Date the client will stop using it). The Client's Table has a lot more fields/information but it still has the same fields as the Category Table. I am trying to be able to use the Category Table and have it automatically populate with the client who is using the Category at that time. Any Category not being used by a Client then the Query should write "Open" in the Client's name field. I have tried many different scenarios but can't seem to get it to work. I must see all 100 Categories each time I run a report. It doesn't have to say "Open" but where ever a client did not use the Category it should be left blank.
I am trying to create a form from questions listed in a table, add a yes/no column to it and then have it auto populate a data sheet with the question and the answer. how I can have the datasheet autopopulated?
I'm building my first Access DB for a while, so am a little rusty, but I can't seem to work out this problem.
I've bound my form, and all of the other fields are saving and populating the correct table, but I have two combo boxes, both of which populate a series of other text boxes based on the selection (eg. I select Joe Bloggs in one box, and it automatically puts Joe Bloggs' phone number and email address in two following boxes).
This all works, however when I save the record, or move to the next one, the data entered in the combo boxes and the related populated fields doesn't save - they just show up as blank in the record created in my table.
As an aside, how do I get the combo boxes & related text fields to show a default blank value until a value is selected.
I'm trying to add records to a junction table based on additional record added to one table via form in the many to many relationship. Junction table = ClientAssociation Main table = ClientMain (qry_NewClientNullAssociation identifies new record added) Many to many table = Associations
I'm trying to do this upon clicking a command button that then opens ClientAssociation based on Client_ID. Then allows user to select mutliple associations (Asoc_ID) for Client_ID.
Here's what I have - I'm new at this...
Private Sub ClickAssociations_Click() On Error GoTo Err_ClickAssociations_Click
'Open recordset with new client records Dim db As Database Set db = CurrentDb Dim recClient As DAO.Recordset Dim strClientID As String
Set recClient = db.OpenRecordset("qry_NewClientNullAssociation", dbOpenDynaset) 'Loop through new client ids Do While Not recClient.EOF strClientID = ClientMain.Client_ID
Dim recAsoc As DAO.Recordset Dim strAsocID As String
Set recAsoc = db.OpenRecordset("Association", dbOpenDynaset) 'Loop through asoc ids Do While Not recAsoc.EOF strAsocID = Asoc_ID
'Open junction table and update records Dim recClientAsoc As DAO.Recordset
Set recClientAsoc = db.OpenRecordset("ClientAssociation", dbOpenDynaset) With recClientAsoc .AddNew !Client_ID = strClientID !Asoc_ID = strAsocID !CheckBox = False .Update End With
recAsoc.MoveNext Loop
recClient.MoveNext Loop
Dim stDocName As String Dim stLinkCriteria As String
I just wanted to run this by some experts before I go mucking around in my db. Basically, I am creating a data entry form to populate with information about car parts, and the vehicles they apply to. This is what I am working with:
I am trying to build a form that will allow me to enter new part numbers and descriptions into the table, and then have the user select (through a listbox?) all the vehicles the parts apply to. Is there a way to populate the junction table with each combination of partID and ModelID automatically? NOTE: tblModels is already populated with data.
I am assuming there would be a way to do this... A query of the junction table (and tblModels?) as the recordsource for the form, and then a subform with the tblParts as its recordsource?
I would have posted this in the massive thread I have going already... but I thought it might be nice to give Craig and Adam a break from helping me :o
Hi :) I have solved a m:n relationship by adding a junction table. The composite primary key in the junction table is made up of primary keys from the other two tables, and both of theses primary keys are set to autonumber.
My question is this: Is it correct to set both parts f the composite key in he junction table to number rather than autonumber? I was thinking that since autonumber should be set only once, the junction table should just take on what ever value there is in the primary keys of the other two tables.
I have attached a screenshot of the relationships in (a section of) a database I am working on. Would anyone please be willing to view it and offer any suggestions as to whether is fully normalized or not? Here is the description:
An account [table, Account] consists of some money. That money is split-up and invested into several different places. The funds that are available as choices are in Fund; the funds that are chosen are in InvestmentInstance. Different, unaffiliated accounts can invest in the same fund. I would like to keep track of when an account begins to invest in a fund and when it stops investing there (“InceptionDate” and “CloseDate”). The generic, account-independent performance of a fund is kept in Price, where the values come from Yahoo! Finance or something like that. Similar to Price, MarketValue stores the dollar-amount of an investment, specific to an account.
I think I have most of it set OK, but my main concern is about the relationship between InvestmentInstance and MarketValue. As the picture shows, I use InvestmentInstance’s “Id”* as the “one” in the one-to-many relationship, but “Id” is not a primary key. To get it to work, it was necessary to set the Index option to, “Yes (No Duplicates),” so that it was a unique index. Is this a bad practice? Should I just include “Id” as part of the compound primary key? I didn’t think making it part of the compound key was a good idea because then it would defeat the purpose of having “FundId” and “AccountId” control the uniqueness of records. Am I missing something important?
In other words, how can I correctly create a one-to-many relationship that begins in a juntion table (InvestmentInstance) and connects to a new table that was not involved in the normalized many-to-many relationship (MarketValue)?
Thank you!
* I know many like to include the table name in the ID, like, “InvestmentInstanceId,” and it is only my preference to keep it just as “Id” for a local key for simplicity, but add the table name when it becomes a foreign key. I feel “Id” is good enough for my purposes and it’s table location is usually clear from the context.
I have a combobox on my form with fields related to it (ie. when an option is chosen in the drop-down, the next two fields are also populated with data based on the selection made - I know this is duplication of data, it's just the way the 'powers that be' wanted it. I'm changing it in my next version of the database!)
The two fields that are populated as a result of the selection in the combobox are migrating into the related table fine, but the actual selection in the combobox isn't - it's showing up as blank in each new record in the table.
Products 1-M ORDER DETAILS M-1 ORDERS M-1 CUSTOMERS
I have ORDER DETAILS set as a junction table so that many products can be recorded within one order. All is good apart from when i go into ORDERS and create a new order. I click the subform which links to the ORDERDETAILS. I then pick a product number(look up from products table). The problem is this: In the ORDER DETAILS I want to display the unit price of this product simply by picking the product id.
Eventually this would form the basis of an order form where I can pick Product Id and have it display unit price.
Any ideas on this one, I'm sure its quite simple!!
I'm trying to archive records by using append and delete queries that span accross 12 tables.
the VBA will execute them all. However, I have a junction table near the end; It will be the Junction table, then a parent then a child table. I can get the junction table keys deleted but after that I can't get the Parent and the child table records deleted.
Does anyone know how to do this. the parent table can't delete any records because I've deleted the junction table keys first but if I delete the parent table keys access obviously wont let me because it's leaving orphan records.
I'm sure there's a way to do this. hope someone can help me.
1) A class can contain one or more students (one-to-many between Class and Student tables)
The table "Score" is a junction table between three tables : Student , Course and Term because it contains three foreign keys ( I could use a combination of 3 foreign keys to make a primary key ! ) .
The tables ; "Class", "Student", " Course ", "Term " already contain data for each table I created a data entry form .
My biggest problem is how to create a form to enter students' grades for each class.
On the form I would like to use ComboBox to select a class that displays students from this class then another ComboBox to select course and another ComboBox to choose the term and then enter grades or scores for each student.
While the form itself is bound to tbl_Orders I decided to use unbound text boxes to enter the data (knowing I was in for some work!). Reason is that if textboxes were bound would need to use a subform with multiple combo boxes and that UI did not seem suitable for the application.
I’ve completed the code to add new records to tbl_Orders and tbl_Junction from the unbound textboxes. I'm using the VBA .AddNew method and is working well. Now I need to integrate code that will allow users to edit existing records while they are viewing them on the form.
I have the code to look up the record set I want to edit in tbl_Junction and am familiar with the .Edit method but the issue is that the required changes MAY include not just editing existing records but also deleting and adding new records. For example, the initial order may have been for Apples and Oranges and the revised order may change the number of Apples, eliminate Oranges entirely, and add some Bananas. So, it seems I need to .Edit Apples, .Delete Oranges, and .AddNew Bananas?
Should I try to write code to determine where I need to .Edit/.AddNew/.Delete? -- not looking forward to that. Thought maybe could delete the entire junction record set and then just .AddNew for everything per the revised order. That should work as the display on the form would be correct for the whole order. But maybe would cause a problem as would remove the FK in tbl_Junction that corresponds to the PK in tbl_Orders?
Attached is my many to many relationship setup. I would like to prevent the possibility of entering the same person more than once for the same training event. I am assuming that I do this by setting an index setting for a field the junction table?
Note : 1) A class can contain one or more students (one-to-many between Class and Student tables)
The table "Score" is a junction table between three tables : Student , Course and Term because it contains three foreign keys ( I could use a combination of 3 foreign keys to make a primary key ! ) .
The tables ; "Class", "Student", " Course ", "Term " already contain data for each table I created a data entry form .
My biggest problem is how to create a form to enter students' grades or scores for each student that belong to his class.
I do not know how to do it especially since the idea is that :
On a form I would like to use ComboBox to select a class that displays student's list from class selected and a ComboBox in same form to select course and another ComboBox to select a term and then enter grades or scores for each student
This is my general idea to enter students' grades. The rules are :
A class contains one or more students Each student takes one or more subjects. Each student gets scores for each subject and each term(quarter)
I have read the FAQ on cascading combo boxes and have managed to apply the theory to my DB's data input form (frmDataEntry) which is very cool and prevents a lot of errors however in doing so it no longer populates the underlying table (tblProductionDetails).
I am at a loss as to how to correct this as you can see from the example I need the customer and description field to be populated with the correct data rather than the fields I am using to make the cascading combo boxes work.
