How Do I Make A Compound Key?
Jan 31, 2007
Howdy all,
I'm attempting to set up a junction table.
The help for junctions says to make a compound key in the junction table, but I don't understand the intructions for this. Do they mean make all three of ID's the junction table PK's or is there a literal "Make a Compound Key"
button somewhere?
Currently, the table has an AutoIncrementing field as the PK and the two FK's copied in from the Primaries (converted from Auto to Number). As a result, I can only make one-to-one relationships to the junction table.
Please let me know what it is I am missing here.
Thanks
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May 26, 2015
In these three formulas for the Ceil tutorial found here:
[URL]
one of the formulas is:
=IIf(IsNull([RoomNumber]),"",DLookUp("RoomType","Rooms","RoomNumber= '" & [RoomNumber] & "'"))
If one were interested in BedType or Rate then simply substitute that term for RoomType.
Now I am somewhat familiar with how DLookUp works. In other words get RoomType from a table Rooms where there is a given RoomNumber.
Where I get confused is the last clause:
"RoomNumber = '" & [RoomNumber] & ""
I realize it is a compound statement hence the &, but it uses two &s and more.
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Mar 3, 2008
I am trying to enforce referential integrity on tables where a compound key is implemented.
I want to enforce integrity on the DETAIL table so that it can only use an SOR_ID from the SOR table that has a corresponding PhaseID in the HEADER table. Here is my current diagram:
http://i234.photobucket.com/albums/ee261/winshent/IT/Relationships2.jpg
The only solution i can think of at the moment is to build two queries. One which concatenates SOR.PhaseID & SOR.SOR_ID, and another which concatenates HEADER.PhaseID & DETAIL.SOR_ID... and then create a relationship between the two queries.
There must be a much nicer way of doing this though?
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Jul 5, 2006
In a form named PRODUCTION there are 3 text box for invoice data: xtype, xserie, xnumber
I need valid this data from the INVOICE table, where its key is a compound key (TPINV+SERINV+NUMINV)
I tried with:
Private Sub xnumber_AfterUpdate()
Dim searchinv as string
searchinv=Dlookup("*","[Invoice]", [tpinv]="& Forms![production].[xtype] and [xserie]= &Forms![production].[xnumber] and "&Forms![xnumber]
If searchinv ="" then
MsgBox ("Invoice doesn't exist'")
Cancel = True
End If
End Sub
... but it doesnt work.
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Mar 27, 2014
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The problem is that although I can apply formatting to the column series, I can't see any way of selecting the line series so I can set the formatting I want. I'm using Access 2003, on Win XP Professional, in case that's important.
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May 2, 2014
How to determine if a field within a table is a primary key or part of a compound key using ADO?
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Nov 22, 2014
I'm trying to create a compound interest form using loops and the following formula:
TotalVariable = TotalVariable + (TotalVariable * (RateVariable / 100 / 12))
I'm not sure whats wrong with my code and it's not working!
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Nov 10, 2013
I'm getting back into Access after retiring and about 10 years of isolation (from Access). I have 2010 version and know that one should avoid duplicate entries and a way to do this is make those fields unique key fields. I have a Customers table and have bounced back between CusID (AutoNumber) and Compound Keys (CusFName and CusLName) as the key fields. The compound keys prevent duplicates but become very hard to work with later in code and expressions. The CusID is preferable from that standpoint, but can't prevent inadvertent entry of duplicate names.
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Aug 15, 2013
I'm trying to get a total based a combination of criteria. Here's my issue:
If ([Vendor Billed Amount] > 650 $ and $ [Excess Fee Approved] = "Yes") then
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else
If ([Vendor Billed Amount] < 650 $ and $ [Excess Fee Approved] <> "Yes") then
[Payment to Vendor] = [Vendor Billed Amount]
else
endif
endif
I think I'm missing an argument with the nested If statement.
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Sep 25, 2006
I'm currently working with a form, which is in datasheet view. I have many rows which are combo boxes (yes/no), and the name is rather long. So each line (each row) spreads on to 2-3 pages to the right.What I would like to do is make the namebar, on top of every column, a little bit higher, so the name would be split into two lines, or three. Allowing me to make the width allot smaller.Here is an example of my problem:http://213.213.137.96/~terminal/columns.jpgSo my question is, can I change the height of the column name? Or is there some trick I can use?regardsFrímann Kjerúlf
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Jun 8, 2005
Hey guys.. I am trying to make my DB into an MDE file however that option which is in Tools > Database Utilities is not highlighted on this particular database. Anyone know why? Thanks!
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Jul 15, 2005
I'm trying to make and mde file but when it runs I get a error unable to make mde. Where do I start looking into this?
Jon
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Oct 15, 2005
Hi all
in the attachment there is two pictures for a form with interesting calendar to chose DOB
any one know how to do something like it
Thx
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Jun 25, 2006
Hi
I'm making my first commissioned database and I can't get my head around auto-lookups.
At the moment, I'm only working with tables because I want everything properly formatted and working at the table stage before I move on to making my forms, queries, reports, and eventually the switchboard.
What I want to do is when I call up a particular ID number in a table which has corresponding data in another table, I want the corresponding data, such as names and phone numbers, to come up automatically within the table.
My database has about eight tables in it and all are linked in someway, either because I need to create lookups, or because they will eventually be subforms.
So what I need is for someone to explain an easy way to get the tables to do what I want. I've looked up the Dlookup function in Access Help but it didn't make sense :confused:
Can someone help me please? I would REALLY appreciate it.
Thanks.
B-E
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Apr 17, 2007
Hello!
In my form I have the title of a CD which is under the name of 'CD_Title' which is taken from my CD's table and I was wondering how to show it up in a Label so when I flick through the albums the Label changes to the album that it is selected!
I need to know...please help me!
:(
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May 15, 2007
I'm having a total brain freeze here.
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With some help from my friends here, I fought through the issues and got the code in the module to work, when tested from the immediate window.
Problem is, I can't figure out how to tie it to a macro or event or anything else that will let me push a button and have it run.
I need nuts and bolts details--- how do I run this module?
BeckieO
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Jul 19, 2007
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Is there a way around this, short of revamping the entire database?
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Dec 28, 2007
Hello all,
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Thanks
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Dec 22, 2005
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Apr 9, 2007
Hi
How to create new table from other with vba when the one table has records and the key record must be transferred to the new table.
Thanks
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Aug 10, 2005
I have this query:
SELECT testScreen, Count(ID) AS testCount FROM SERPTestInput GROUP BY testScreen
It returns a count for each testScreen that appears in the table.
Then this query returns the same thing except it joins another table and adds the criteria that the status for the record must be successful.
SELECT testScreen, Count(testID) AS myCount FROM Results RIGHT JOIN SERPTestInput ON (SERPTestInput.ID=Results.testID AND Results.testStatus = 'Successful') GROUP BY testScreen
So both queries currently generate an 8 row table with the first column being the testScreen and the second being a count. I would like to somehow combine the two so I get a three column, 8 riow table. Column 1 would still be the testScreen, column 2 the total count for each testScreen and column 3 would be the successful count for each test screen.
In short, can the above two queries be combined into one?
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May 15, 2006
I have a little problem with making a query and would need your help.
I have the following temporary table that gets filled automatically with 2 records every day:
DATE | TIME | NAME | CODE
The first record will have the DATE, TIME, NAME ( always the same ) and the CODE that can be START or STOP.
What i need, is to put the 2 records from the same day in a single row to get something like that:
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Until now i was able to make 2 different queries. One can give me the START info's, the other one the STOP info's.
My question is if there is a possibility to combine those 2 queries or to make one query to get the result i need.
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Aug 11, 2006
if i do 2 at a time it wont work
but 1 at a time works, why is that?????
insert into room values ('00012','1A','B','120','00002','Sports Hall','N','0');
insert into room values ('00013','1B','B','20','00002','Changing Rooms','N','0');
Somebody please give me an answer
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Nov 2, 2006
Hi again everyone,
I'm stumped again.
I have two tables that my query is looking at.
1. tblProgramActByDay
And the other is:
2. tblProgramByProductByDay
I’m trying to tell the query to
A: Look in the Program ID Field
B: if the Program ID Field = 1667100
C: Go to the table tblProgramByProductByDay
---- In that table look for the criteria---
The Field Program ID must = 0
The Field Product ID must = 38648800
The Field Locale must = en_US
The Field Report_Date must = The Current Month
If it does
Total the amount in the Sales Field from the table tblProgramByProductByDay
If not
Take the total sales for the current month from the table tblProgramActByDay
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Oct 31, 2007
I have 2 tables: first table has 4 columns:
/job code/project1/project2/project3/
job code is some digits, and in next columns are the job description (different for each project).
The second table has
/project name/job code/description/working hours/date/
I made the query what shows how many working hours was consumed for each project monthly
and my working codes, but I would like to have job descriptions after job code, If its project1
then the description should be taken from first table from the column "project1". Is it possible to do it with
query?
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