I have been asked to update at my organisations access 2003 based database that has been in operation for about 6 years.
I find that there are no relations between more than 10 tables and wondered how reports are still being produced.
I created a database with 10 tables and 8 relationships. Then, I learned about the Autonumber field type and decided that I wanted that to be the primary key of one of my existing tables, for a field that was already linked to 2 other tables. I had to delete the relationships and the original field to make the change, and Access said it had to delete an index, too. Now, Access won't allow me to re-establish those relationships.
I found that I had to change the fields in the other tables to match the Autonumber type and name of the original field, but now I am getting an error message stating, "Invalid field definition 'CustomerID' in definition of index or relationship. What does that mean? The field types and names are all the same.
I have a database which has been running well for four years. There are four tables that are linked from one to another in a one-to-many relationship, i.e., Table1 to Table2 to Table3 to Table4. We recently had a power failure and our network went down. Now the relationship between Table2 and Table3 is broken. When I try to rejoin them using the Relationship View, Access tells me that the relationship between the tables is "Indeterminate". I have run queries testing for unmatched records between all of the tables and the data appears to be fine.
My only guess at this point is that the structure of one of the tables is corrupted. The problem is that each of the tables has an autonumber field. If I build a new table structure, and append my old data, isn't that going to renumber all of the records?
I have run a compact and repair on the database and that didn't help. I have made copies of the tables and tried to use them in the relationships. The copies don't work either. Other than not being able to link the two tables, everything is working fine.
Does anyone have any ideas?
Thanks,
Cherry
I'm trying to create multiple relationships between the same two tables, but I run into problems every time I try. I'm using Access 2007.
Specifics:
I have a table with information on meetings and there are two hosts. So I have fields Host 1 and Host 2. I have a second table that lists possible hosts and their personal information. I have a relationship between table 1 "Host 1" and the Host in table 2; I cannot create another working relationship between table 1 "Host 2" and the Host in table 2.
how I can get that to work? With just the one relationship, I can go to table 2 of the hosts, click on their name, and see all their meetings.But if I add another relationship, it takes out all of the information. I've been working on this for over an hour,
I've search the forum but couldn't find anything on this, maybe someone can point me in the right direction...
My application consist of two Access files: Front End & Back End. The front end is linked to the back end using Linked Table Manager. A problem arise last week when the IT renamed one of the folder in the program path, as a result, the Front End file cannot find the Back End file (I guess the links were static). So I had to relink the tables manually and got it working again. However, in the future, I won't be around to relink the tables, and my client doesn't know how to do this (and I don't want them to have to do this every time the folder is moved).
My question is, is there a way to link it so that it will adapt to path name changes. The two files are in the same folder.
I am looking for something like: when the front end opens, if the link is broken, it relinks it to the data file in its current database folder. Thanks.
I have been asked to look into fixing a permissions problem with a database. The company has been in the process of updating the OS on our computers.
The database in question is stored on a shared network drive. It opens fine on a windows XP machine running Access 2003 but when the same user tries to open the database from windows 7 using access 2010, the message: "You do not have the necessary permissions to use the '<file path>' object. Have your system administrator or the person who created this object establish the appropriate permissions for you."
I have a split Access 2010 database. If the backend file is not accessible (for instance, if our shared folder connection is broken), I get no warning message at all when opening the front end. Just the home screen you would get when launching access from the Start menu. I was thinking of adding some VBA code to my startup form to give users a warning that there is a connection problem, but Access won't even load the startup form.
View 8 Replies View RelatedI have 5 tables and 2 forms. The primary form is what I input all the information into (Tracking) and the other form is to update employee information (update form).
The "Tracking" form is where I add information to 4 of the 5 tables. Here is where I'm stumbling. Would it be more practical to just have 1 table and just expand the fields, or have the form put the information into the separate tables. Those 4 tables are Employee, phone, spotter and radio.
I'm wanting to keep a running tally of who doesn't turn in what equipment on what day.
:confused:
Could Someone point me in the direction of some info on relationships.
I have a basic understanding but I start to get lost on when to use certin types of joins.
Please see the attached two files.
I have tried to figure out what the difference in functionality would be between 1 and 2. In the latter I have just created a series of relations between the last two tables (but that structure could be used throughout the whole DB instead of hanging it together with one relation between tables as is the case for the rest of the DB in this picture).
So there can be three different situations with this table structure:
- linking all tables together via multiple relations
- linking all tables together via a single relation
- a combination of both, such as in the images.
Why would someone choose one versus the other? "Which is better in what situation?"
I've been fiddling about for a while now, but in a structure such as this it doesn't seem to make a difference. Or maybe there are differences in use/design, but on a level that I have not explored yet.
Could anyone explain this to me a bit? I have multiple books, all of which handle basic relations but I have not yet seen an explanation for this question. I think understanding the whole relationship topic is critical to be able to see other pieces of the puzzle fall into place later on. And as of yet, this is really fuzzy to me.
CompanyID pk (just one company)
CompName
EmployeeID pk
companyID fk
roomID fk
extensionID fk
LName
FName
LocationID pk
RoomNumber (many employees might share same room)
PhoneDirectoryID pk
ExtNumber (employees might share same extension number)
roomID fk
ItemID pk
ItmName (messengers take envelopes to different employees)
equipmentID fk
employeeID fk
EquipmentID PK
eqmtName (equipment might be used many times to deliver jobs)
I just need to know if the relationships for these tables are right.
If you need more information about this, please let me know.
I am converting / developing a database that stores information pertaining to individual birds and their recaptures over many years. Here is a condensed version of the many tables in this database:
tblIndividual Bird:
Autonumber (Primary Key)
Band Number - also, unique to the individual bird
Sex - M or F
etc ..
tblCaptureInformation:
Autonumber (Primary Key)
Band Number - look-up from tblIndividualBird (using hidden Primary Key)
Capture #- # which indicates what capture this is (ex. Intial capture - 1)
Place
Age
Date
etc ...
Each time a bird is captured, we record information pertaining to TIME, MEASUREMENTS, and NEST INFO. So, I have seperated the data based on these headings and made them into individual tables.
Now, my problem .... I have already created a relationship between CaptureInformation and Individual Bird. However, in the last 3 tables I would like to create a drop-down menu which shows the Band Number and Capture Number and make relationships there. What is the easiest way to do this? As of now, when I make a look-up field in the last 3 databases to show this info, the Band Number comes up with the Autonumber (because I am using the CaptureInfo table) which does not really help someone entering the data. Thanks for your help.
Hi,
I am trying to create a db for service orders for customers. At the moment I have four tables, customer, service_order, parts and totals.
I have one form for customer records that has a button that when clicked opens another form for that customer's service orders. The service order form has two subforms, one for parts and one for totals.
When I try to add a new service order for my test customer it says "you cannot add or change a record because a related record is required in the table 'customer'.
As you can see here (http://www.abstractmusic.org/relationships.gif) I have three relationships setup. cust_no in customer table is a PK and so is service_order_no in service_order table.
Also I am having problems with the totals, as the fields are from different tables the equations won't work from within the subform (I guess I need some kind of query). I need the totals in a seperate table other wise I have a total for every part entry.
Any help would MUCH appreciated.
Cheers
Housey
The attached application is what I need to design a form in Access around. Please see if i set up the tables correctly and the relationships. Thanks.
View 1 Replies View RelatedI am trying to set up a database to detail dances published in a magazine over the years.
I currently have all the information in an Excel Spreadsheet but know that Access would be better.
The columns in my spreadsheet are:
Dance
Choreographer(s)
Level
Count
Date Published
Song 1
Artist 1
Count In 1
Song 2
Artist 2
Count In 2
Song 3
Artist 3
Count In 3
Song 4
Artist 4
Count In 4
Song 5
Artist 5
Count In 5
Song 6
Artist 6
Count In 6
Song 7
Artist 7
Count In 7
There can be two or more dances with the same name
The same choreographer(s) could have written more than one dance
The same count can be used for many dances
About 15 dances are published on the same date
One artist can have more than one song used
One song can have more than one artist singing it
One song and relevant artist can be used for more than one dance
I tried using Access For Dummies but it has confused me even more. I cannot work out what tables there should be and what relationships.
Not all dances have 7 songs for it - some have 1, some 2, some 3, etc.
What is listed as song 4 for one dance could be song 1 for another or song 5, etc.
Any advice gratefully received!
Thanks in advance
Chris
I'm a novice and I'm confused. Maybe it's the way I think. I feel like there is an easier way that I'm overlooking, but I can't seem to get a satisfactory solution.How would YOU create your tables/relationships if you had the following:* The general purpose is to manage orders* You have to store information about the order (like order number, date)* You have to store information about from what company the order is from (like address)* You have to store information about from which department of that company the order comes from, each department has their own information that needs to be stored (like contact person).Keep in mind that you don't want to memorize which department is from which company nor do you want to be able to make the mistake of entering an order from a department that is not a part of that company.It seems like it should be an easy thing to do, but I'm stumped. I've thought about creating a new table for every company with a sub table for every department but that doesn't seem very practical. I tried creating one table called Company and one called Department, then merging them on a third table which is then linked to a fourth table called Orders. I'm not convinced this is the best way to do it, but it's my best guess at this moment.All help is greatly appreciated.
View 1 Replies View RelatedI'm relatively new to Access so am unsure if i'm on the right lines with my system, but here goes:
The system should be able to have new records of students input, and their grades recorded.
At present I have it laid out as follows:
-tbl Pupil
--Pupil ID (pk)
--Surname
--Forename
--Year
--Address
--Phone Number
--Parent's e-mail
-tbl Present Grades
--Pupil ID
--Grade ID (pk)
--Subject
--Term
--Grade
-tbl Subjects
--Subject ID
--Name
Any advice on relationships between the tables would be appreciated. Thanks in advance.
i know tecnically you can create a table with no relationships but is it "ok" to do so?
im using a table to store some values which are only referenced through a query but it is completly detatched and has no relationships with any other tables, im awear my database will function perfectlly happily but is it an acceptable programming standard?
cheers guys
mike
I am creating a database of medieval labor contracts and have come across an issue.
I have a table of Contracts, and a second table of People. I want the table of People to show every contract in which that person appears. Each contract has multiple roles - there is always at least a Laborer and an Employer.
The same person might appear as a laborer in one contract, and an employer in a second contract and I want my People table to pull every contract in which that person appears, regardless of the role they play in the contract.
So far I have not been able to get this to work. I set up two different one-to-many relationships which link the People table primary key (personID) to two separate columns in the contract table. However, in the People table, instead of pulling contracts in which the person appears as either Laborer or Employer, it will only pull contracts in which the person appears as both Laborer AND employer (a situation which will never occur in my actual data but which I tried out as a test).
I have one database called asset management. It consists of one main table called cyber assets. Most fields in this table are linked to a manually created lookup table inorder to restrict user input. There are also two additional, none lookup, tables used to list a) the IP addresses (there can be more than one) and b) another similar 1 to many type table. Basically this DB is used to manage basic cyber asset data, excluding most items related to configuration management.
So, this above DB serves the purposes of asset management. Now I essentially need a similar DB for Patch Management. What I've done for this is to assess each patch initially (i.e. just by looking at the patch title and determining if we even have any of those device. i.e. this assessment is not based on OS, model number... just a general 'may' or 'may not' be applicable). Here's what this SEPARATE DB looked like:
Since each patch is essentially assessed against itself, or maybe a better way to describe it is against the users memory of what we do and don't have, only a single table and form was needed.
So now we've been thru this process and the DB is filled, all initial assessments are complete. The next step is to take all the ones that are applicable to our company (based on the initial assessment when you answer, yes is applicable) and do assessments based on each device we have.So what I want to do is to link the two DBs on a new table called Patches_by_device, inside the original patching DB... so the relationships would look like this:
But as you can see, the linked table CYBER_ASSETS has some sort of undefined relationship type, which is causing my issues.So the next thing I did was to autocreate a form based on the Patches_by_device table, and here's the result.I need to change the patch_key to the Patch_ID+Patch description+URL, etc, and to change the device key to the the UNID+IP+functional description, etc...so I changed the form record source like this:
Now I should be able to change the control source of the Patch_key and Device_key to more useful information. so I changed: Patch_key control source to Patch_ID and Device_key control source to UNID (which is in the cyber assets table)
As you can see, it worked for the patch_ID but not the UNID which is part of the linked table.Must it be within one DB, because we have a ton of other modules to implement (e.g. config management, vulnerability assessments, audit stuff, and more...) and I'd like all these to be in individual DBs, all liked back to the main cyber_assets/Asset management DB.I've considered just modifying that patch table so that each device has its own column heading in the table, but this will cause issues when new devices are added.
I have three fields in one table that need to be related to the PK of another table.
tblProject - Engineer_ID, Producer_ID, and Project_Maner_ID
tblEmployee - Employee_ID (PK)
employees can take on any of the positions for a given project, so i'll need to have multiple employees filling up different roles for each project.
when i try to set up the relationships i get the following message:
A relationship already exists.
Do you want to edit the existing relationship? To create a new relationship, click No.
I click No, and it creates a table named tblEmployee_1. Why? is this ok?
I want to build a Financial Database. We are provided a certain amount of budget under different heads each year. Every month we spend some money from some or all heads. Then we provide a detail of expenditure during the month under each head and the balance thereof. My request is how many tables I need in my database. My opinion is 5 tables each for Years, Months, Heads of Expenditure,Budget Allotted, and Expenditure.
View 1 Replies View RelatedMy problem is displaying data in many-to-many relationships.
There are three main tables: tblShops, tblOwners and tblMarketingEvents.
These are linked through two junction tables creating two many-to-many relationships:
1) Each Shop may have more than one Owner and each Owner may have more than one Shop.
2) Each Marketing Event may reach more than one Owner and each Owner may be reached by more than one Event.
Now I want to display for each Marketing Event:
1) the data of that event, (tblMarketingEvents)
2) plus the owners reached in that event, (tblOwners)
3) plus all the shops owned by the owners reached in that event. (tblShops)
Preferably, I want to display more than one record at a time without repeating any information.
Is there a way to display the data like this?
I tried a query: it gives the right data but does not display it as I need. It repeats the data from tblMarketingEvents and tblOwners for each shop.
I tried a form with subform: it can only display one record at a time and is hard to work with (printing etc)
I tried a report with grouping levels based on the query: Again, right information, wrong display. I need to group according to the records of the MarketingEvents table and not just according to a single field.
I have a database with a table on a shared network drive. The table contains a list of buildings, building details and a unique building code. I want to be able to use that database as a master copy so any new buildings that need to be added can be.
I have another database with accounts and another database with some other information. I can create a relationship between the accounts and the linked table of buildings (by the unique building code) but if I am to go into the building table, there is no "expansion option" to see all the accounts for that building. Is there a way to create a proper relationship or at least make a copy of the buildings table so that each time the database starts up it can get the latest version?
Thanks in advance,
Bob
Hello,
I know this has been asked a few times before, and I did search it, but could not find an adequate answer.
I want to use code (VBA) to import tables from a different Access database into the current one, by first deleting the current database tables, and then importing the new tables from the other database. I found code in the following thread that does exactly this:
http://www.access-programmers.co.uk/forums/showthread.php?t=74700&highlight=import+tables
However, the code in this example only appears to delete tables in the current database that have no relationships with each other before importing the outside tables. My tables, however, are rife with relationships and when i run this code, i get the message, "You cannot delete the table "tblWhatever", it is participating in one or more relationships." Can someone give me a pointer or two about how I can solve this problem (if at all) ?
Thanks in advance!
Hello, ive done a bit of access before but ive got myself a bit confused on my next step.
I have a database of books that i loan out. I have a table containing the books instock. I want to be able to loan out book s and reserve books. The problem is whats the best way to do this? Should i have a form that allows me to click a button that takes the book out of the books instock list and adds it to the reserved list? The problem i see with this is when all the books had either been loaned or reserved then the books instock list would be empty and nobody could reserve anymore books which would be a vital floor. Does anyone have any ideas?
Thanks,
Marley.