Relations In Db For Same Fields But Different Records
Nov 1, 2005
Access user,
:confused:
I am looking how to generate a relation in one database between records of the same field type.
f.i. you have a database where you try to keep track of your parts.
You order a part1 but they deliver an identical part but from another brand so it has another part number.
You will store it under his correct partnumber being part2.
Due to the fact you still have stock of part1 and just recieved part2, now you will run out of stock when part1 + part2 reach zero stock.
In order to be able to monitor this you must be able to generate a relation between part1 and part2 showing that that parts are fully interchangeble.
How can you realise this in access?? Or is this impossible?
Also would it be possible to have for a certain part number multiple relations?
f.i. parts are fully interchangeble
restricted interchangeable
one way interchangeable
Thanks in advance
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Oct 21, 2005
Hi,
I've split a database and the backend relationships are still intact but the front end they are not and it looks like this is causing a problem. Is this usual?
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Aug 30, 2007
How do I make the reports show in relations?
I'm (as said before) totally new to everything that has to do with programming, and therefore I work in the visual way, and thus I need to have the reports shown in relations in order to work with it...
Any ideas?
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Jan 12, 2008
After designing the database that mean after creating all the tables and when pressed on relations buttuon it shows a diagram with relations established. Is this a kind of ERD. in this it shows relations between entities so can we call that an ERD?
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Nov 24, 2004
Hi there,
I'm a bit stuck on this but it should be pretty easy.
Say I have a table secondHandCar - this contains infromation on the makeID (eg 123), price, number of doors. Now each car can have a number of images, this number isn't set so I have an images table...
tbl_secondHandCar
makeID - key
price
number of doors
tbl_images
makeID - key
Image (ole, binary whatever)
Now clearly I have a problem: the images table is going to have many makeIDs with different images. I've just got stuck here - do I need an image id or something? But then my make ID will still repeat in tbl_images.
Thanks for the help :rolleyes:
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Mar 3, 2007
Hi,
I'm trying to build a mdb which holds customer details, which insurance they have, who sold them this and which Insurance company provided this.
The relations I have to make are driving me nuts !
When I try to enter a new customer in a Form, there is a advisor added, the package the customer wants is added. But this shouldn't happen for the advisor and the package allready exists !
Who can help me with the proper relations ?
Attached is screendump of the current relations.
Thanks a lot !
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Aug 8, 2007
I have a DB and for some reason queries aren't working properly. My guess is the table relationships I made. If anyone else has an idea on changing my relationships so that all forms and queries will work to thier full potential please give my DB a look.
Any Help will be greatly Appreciated
18338
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Apr 19, 2005
Hi,
I am creating some table for a database I want to use.
I had the following tables:
[Organisation]
orgOrganisationID (primary key)
orgName
orgPostalcode
orgStreet
orgCity
orgCountry
[Contacts]
coContactID (primary key)
coSurename
coFirstname
coFysicPostalcode
coFysicStreet
coFysicAdditions
coPostPostalcode
coPostStreet
coPostAdditions
coTel
coFax
coEmail
[Postalcodes]
poPostalcode (primary key)
poPostalCity
poPostalCountry
I have two postalcodes in the Contacts table. I can't create two one-on-many relations from the Postalcodecodes table to the Contacts table.
So I thougt I split up the contacts table and create a one-on-one relationship between the two new tables.
So it would look like this:
ContactsGeneral
cgGeneralContactID (primary key, autonumbering)
cgSurename
cgFirstname
cgFysicPostalcode
cgFysicStreet
cgFysicAdditions
cgTel
cgFax
cgEmail
ContactsPost
cpPostContactsID (primary key, numeric)
cpPostPostalcode
cpPostStreet
cpPostAdditions
I would create a one-on-one relationship between coGeneralContactID and coPostContactsID. And now I can create my one-on-many relationships between from the Postalcodes table.
1) Is this clever?
2) Should both these fields have a key?
3) I set coGeneralContactID to autonumbering and coPostContactsID to numeric. is this also correct.
4) I also use prefixes before the fieldnames 'cp-' for 'ContactsPost' is this naming convention ok? I think it makes programming easier. But are there condingstandards for that in Access/VBA?
Thanks,
Jayke
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Aug 9, 2007
Hi all,
I built a database and I was wondering if anyone has any suggestions on how to normalize my DB. I think my table relations are wrong.
I'll post my DB for you people to view.
18354
Any Help will be appreciated
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Sep 14, 2004
Can anyone shed light on why my Database seems to have stopped working so far as I've a combo box on a main form, which provides one half of a PK/FK relationship. The subform displays one or more records for this value. However, I've just entered the same 'value' (string) for an entry in the combo box as another, which shouldn't display any records in the subform yet - but it displays the records of the first combo 'entry'. This important thing is that the key's are all unique (I've doubled checked this), so why does it seem to not work?
Please.
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Aug 16, 2006
I have 3 tables Metrics, FixedExpenses, Variable Expenses, I want them all to have a date in a form, and a subform for all the records to be added. I want to be able to do this without having 3 seperate date tables linked to the other three tables. I am not sure how to do this correctly. (I want to be able to see all the records for a certain day in these forms.)
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Apr 7, 2015
I have a table named [Brand] and several tables named [Brand@@@Models], one for each field in the Brand table.I want each field from the [Brand] table to be related to it's specific Model table. I thought like that so I don't have a Brand#1 related to Brand#2 models, etc.. I didn't want to have all the models for all the brands in a single table, was I right to think like this?
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Jun 15, 2013
In an Access 2010 form is it possible to export select records and fields in those records to a specific location?
Code:
Set objDialog = Application.FileDialog(4)
With objDialog
.AllowMultiSelect = False
.Title = "Please select a File"
.InitialFilename = "C:"
.Show
If .SelectedItems.Count = 0 Then
MsgBox ("Action Cancelled")
Else
[code]....
The user can select the directory using the code above, but can specific fields in records be exported to a excel workbook in that selected directory?For example, if the are 5 records in the database can the fields LastName,FirstName,BirthDate in records 1,2,3 be exported to Setup.xlsx in that selected directory?
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Aug 11, 2015
where each number corresponds to the primary key in another table, each number being a company name (not really relevant). What I want to be able to do is:
1. Produce a query table result with the Total Project Value (sum of all values) each company (305-9) is involved in. For example, in Project A and C, 308 are not involved, so the 308's Total Project value would be B+D+E+F Valuation.
2. Produce a query table result with the Average Project value. Similar to above, but taking the total and dividing it by the number of projects they were involved in. For example, 308 had a total of 259 over 4 projects, so an average of 64.75
3. Produce a query table result where it takes the most common role for each company ID. For example, Company 308 was Civil 3 times and Structural 1 time, giving 308 with Civil as their most common role.
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Mar 27, 2006
Not sure if this is a Table question, a General question or what exactly. I'm working with a lot of records (millions of them). Assuming each record/field contains identical data, I'm wondering which would result in a larger overall DB size:
- 10 million records, 4 fields each
- 30 million records, 2 fields each
What I have is a table something like this:
Record No./Attrib1/Attrib2/Attrib3 (~10 million records).
I could make it Record No./Attrib, which would have roughly 3 times the number of records. I say roughly because not all Attrib have values (currently zero filled but would be eliminated).
I'm hitting the maximum size for an MS 97 database (1 GB), so I'm looking to do whatever possible to stay small.
Any input/suggestions would be appreciated.
Thanks!
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Jul 13, 2005
We use two different systems in our office that have notebook facilities. One of them stores only a limited number of characters in the note field per record and as such, some notes actually span several records.
The other system stores the whole note in one record.
We want to transfer all the notes from the first system (1 note over several records) to the second system (1 whole note in 1 record).
I have a table with the notes from the first sytem which looks something like
Note1 - Line1 - Text
Note1 - Line2 - Text
Note2 - Line1 - Text
Note3 - Line1 - Text
Note3 - Line2 - Text
Note3 - Line3 - Text
What I want to do is, for each note, combine the separate lines into one record.
I have been able to do this in Excel with some formulas (see attachment) but am wondering if it is possible to do this in an Access Query (i.e. GroupBy the note number and have a calculated field combining the individual lines of the note, or something similar)?
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May 30, 2007
i'm relatively advanced Access user but this problem has got me stumped....i've been given a table that's basically a log of operating rooms with fields designating the date, the room number, "patient in room" time and "patient out of room" time. basically, i want to calculate the turnaround time which is the "patient in room" time" minus the "patient out of room" time from the previous record (if records are sorted in sequential order).
any thoughts?
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Mar 11, 2008
Another problem has thrust its ugly head into my personal universe.
I have a report to make that is to show a break down of employees hired in each month since Oct. '05 and to show what percentage of the total for that month remain.
I have created one query that grabs each of the relevant personnel;
SELECT Right(Str(Year([dbo_personnel]![originalapptdate])),4)+" -"+Str(Month([dbo_personnel]![originalapptdate]))+" : "+MonthName(Month([dbo_personnel]![originalapptdate]),True)+" '"+Right(Str(Year([dbo_personnel]![originalapptdate])),2)+" Hires" AS hire_month, [dbo_personnel]![lname]+"; "+[dbo_personnel]![fname]+IIf(IsNull([dbo_personnel]![mname]),""," "+Left([dbo_personnel]![mname],1)+".") AS name, dbo_personnel.badge, dbo_personnel.originalapptdate, IIf(IsNull([dbo_personnel]![dateoftermination]),[dbo_personnel]![assignedorg],"EOS'd") AS EOS
FROM dbo_personnel
WHERE ((Not ((dbo_personnel.badge) Like "R*" Or (dbo_personnel.badge) Like "9*")) AND ((dbo_personnel.originalapptdate)>=#10/1/2005#))
ORDER BY dbo_personnel.originalapptdate;
I've saved this query as "2-yr Service Check Baseline."
And then this query that does the count;
SELECT [2-yr Service Check Baseline].hire_month, IIf([2-yr Service Check Baseline]![EOS]="EOS'd","EOS'd","Active") AS EOS, Count([2-yr Service Check Baseline].EOS) AS CountOfEOS
FROM [2-yr Service Check Baseline]
GROUP BY [2-yr Service Check Baseline].hire_month, IIf([2-yr Service Check Baseline]![EOS]="EOS'd","EOS'd","Active")
ORDER BY [2-yr Service Check Baseline].hire_month, IIf([2-yr Service Check Baseline]![EOS]="EOS'd","EOS'd","Active");
The output from the second query stores the Active count on odd numbered records and the terminated ones on the even numbered records.
So, to get the percent left, I'd need to sum the two count fields from the two relevant records and then divide this into the Active count.
But, in the report, how do I reference a field from a record other than the current one?
Thanx in advance for any help!
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Jun 16, 2006
Newbie Need help !!!!!!
downloaded a template from microsoft for contacts played around with the form to suit myself...
the problem i have is when i enter any thing in the text box this is cloned to all records this is happening with all text fields im not a programmer so plz go easy!!!!!!
thank you
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Jun 16, 2006
Newbie Need help !!!!!!
downloaded a template from microsoft for contacts played around with the form to suit myself...
the problem i have is when i enter any thing in the text box this is cloned to all records this is happening with all text fields im not a programmer so plz go easy!!!!!!
thank you
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Dec 12, 2006
I have a database and I wish to be able to copy 10 out of about 20 fields into a new record automatically using a command button on a form. Similar to the way the Duplicate button or the Create New button would work but only with these selected fields. None of the fields I wish to duplicate are the primary key. The primary key is an AutoNumber field. After clicking the Save button, the primary key would increment one to confirm the save record.
Any help or suggestion would be appreciated!
Thanks!
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Jun 8, 2005
I'm working on a db logging replies to a questionnaire. Judging by the responses I am receiving it appears that some sections are not completed at all. I need to be able to include these blank responses when it comes to analysis.
My design splits the questionnaire into sections, each section has a data entry form with its own underlying table. Each table has a primary key (autonumber field) which relates to each organisation that has replied.
If an organisation has failed to complete a section, I still need to create a new record in that section(table), triggering the autonumber field, hence referring back to the organisation.
I know I haven't explained this very well, but if anyone can make sense of what I'm saying and can give me any suggestions on how to make this happen, I would be most grateful.
In anticipation of your replies
Ride
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Jun 19, 2015
In my table, I got text fields and numeric fields, however, sometimes, user put an empty field in some records which I disliked. I try to put some checking such as following syntax to check those empty field but nothing happened.
1) If len(NAME) = 0 THEN error message : for TEXT field checking
2) IF len(name) = NULL then error MESSAGE : for TEXT field CHECKING
3) IF NAME = "" then error message : for text field checking
4) IF LEN(AMT) = 0 THEN error message : FOR NUMERIC field checking
5) IF LEN(AMT) = NULL then ERROR MESSAGE : for numeric field checking
6) IF AMT = "" THEN error message : for numeric field checking
7) IF AMT = NULL then ERROR message : for numeric field checking
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Dec 18, 2013
It have several fields, and the fields that I want to filter is ItemNo and SellingPrice.The problem is ItemNo has many different SellingPrice. I put a parameter in SellingPrice field as >=75 only for ItemNo "49565", but still i want to show other record in ItemNo and do not have filter in SellingPrice field.
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Jul 18, 2013
I have a table called tblAuthorizations. It appears as follows
AuthInstanceID....ConsumerID....AuthNumberID....Au thStart....AuthEnd....PSRUnits....BSTUnits
1374006036.........356679..........20255102....... ...4/22/13......7/21/13.....0..............416
-432536491.........356679...........20255102....... ...1/21/13.......4/21/13....104..........416
-124970517.........356679...........20147863....... ...10/23/12.....1/20/13....208..........520
504564357...........469432..........20254788...... ....4/22/13......7/21/13....0..............520
282523535...........469432..........20254788...... ....1/21/13.......4/21/13....0.............520
I work in mental health, and when we put in a request for a consumer to receive PSR & BST services, we put the above information into our database. Each record identifies which consumer the authorization is for, a start date and end date for them to receive services, and the amount of two types of services (PSR and BST). When one period ends, we request another period, such as in the first three records above, and then the final 2 for another consumer.
What I need to be able to tell is how their service authorizations change. For instance, if I were to compare the first and second records, it would tell me that PSRunits decreased 4/22/13-7/21/13 from 1/21/13-4/21/13 levels.
I have a query that displays the records for each consumer for the current period, but I can't figure out how to identify the previous period's number of PSRUnits or BSTUnits.I've tried adding the following fields, but this isn't working.
PrevEnd: (Select Max(AuthEnd) from tblAuthorizations Where AuthEnd < Auths.[AuthStart])
PrevBST: DLookUp("[BSTUnits]","tblAuthorizations","AuthEnd=" & [PrevEnd] And "ConsumerID=" & [ConsumerID])
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May 20, 2015
I currently have a query that uses a function to get the current users email address. This is matched with a "Teacher Email" address in a table of students to only show students which match the logged in teacher. I'd like to modify this so the teacher can see any student in their department. Is there a way to do this without creating a separate "Teachers" table that would contain a department and email?
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