Hello,
My Access application consists of two MDB files: the application file and the database file. The application file has links to tables from the database file.
Now, I want to define relationships to optimize my database performance. Where should I define them? In the database file? In the application file? Both?
Thank you!
I am a novice to access. I am building a database in an effort to learn in the process. I wished to enquire about the possible issues that could be with defining the relationships that i have created in the project. (attached img).
I cannot seem to define a form based on these relationships to input the data.
Hi, all... :)
I need to create cascade relationship on fly.
I've succeeded to create the relationship by:
ALTER TABLE tName ADD CONSTRAINT fk_id FOREIGN KEY(ID) REFERENCES tPrimary(ID)
and even succeeded to check the referential integrity by:
ALTER TABLE tName ADD CONSTRAINT fk_id FOREIGN KEY(ID) REFERENCES tPrimary(ID) CASCADE
The real problem comes when i am trying to enforce the cascades. I do not find any expression doing it.
the standarts of sql: on update cascade
or
of sql server: on update cascade go
just don't work in access :(
Thankful ahead
Hi!
I have a table with x columns.
In a form I can choose 4 different columns to define my search.
Now, I have this SQL-statement, that strangely doesn't work. Can someone help me with this?
SELECT a.Nr, a.Objekt, a.Applikation, a.Modul, a.Datum, a.Anmalare, a.Onskemal, a.Klart, a.Prio, a.Status, a.Ansvarig
FROM tblArenden AS a
WHERE ((IIf(Not IsNull(Forms!frmFiltrera!cboObjekt),a.Objekt Like Forms!frmFiltrera!cboObjekt & "*","*"))<>False) And ((IIf(Not IsNull(Forms!frmFiltrera!cboApplikation),a.Applika tion Like Forms!frmFiltrera!cboApplikation & "*","*"))<>False) And ((IIf(Not IsNull(Forms!frmFiltrera!Prio),a.Prio Like Forms!frmFiltrera!Prio & "*","*"))<>False);
Hi
I need to define this query:
I have 2 unbounded fields : ShowMonth and ShowYear (Each field represent the month and the year of Date field)
And UserName field
I need to define query that shows the dates and the UserName accordding to ShowMonth,ShowYear and UserName field (Without SQL).
I will be happy if serious answers will be post
Thanks
I am trying to save my table and I get a message saying "Cannot define field more than once". I only have 14 fields and none of them are repeated. My field titles are: First Name, Last Name, SSN, Wage, Salary, DOB, Hire Date, Years Employed, Phone Number, Alternate Phone, Address, City, State, and Zip. What am I doing wrong?
View 1 Replies View RelatedHi,
I am trying to create a db for software change requests. I have defined 3 tables:
PCR - Change request table. This table contains all info on the software bug.
Release - Software release table. This table contains info about the release date, platform i.e. SAP
Sponsor - The person funding for the change to take place. This table contains info on the sponsor such as Name.
I have identified that I need a one-to-many relationship between the tables. For example, A release will have many PCR's. A sponsor will have many PCR's they are funding.
My Primary keys are: PCR Table - PCR_ID, Release Table - Release_ID, Sponsors Table - BPM_ID.
In order to get a one to many (the many being on the PCR table) I have put two foreign keys in the PCR Table (Release_ID and BPM_ID). Both of these keys in thier own tables are autonumbers. From my undertstanding to get MS Access to relate the data I need to set the foreign keys in the PCR Table to autonumbers. Or do I? I do not want to change the primary keys in the Release and Sponsors table to datatype number as this would mean user manual input which I am trying to avoid.
Thanks in advance for the help.
Ket
Dear all
i have a trouble to define a rank in query, i have a table named SALES
like below
region PRoduct qty
jabar A 10
Jabar B 20
Jabar C 30
Jateng A 50
Jateng B 40
Jateng C 35
i want to give a result in my query like below
region PRoduct qty Rank
jabar C 30 1
Jabar B 20 2
Jabar A 10 3
Jateng A 50 1
Jateng B 40 2
Jateng C 35 3
anyone can help me???thanks
regards
martell
How can I define a variable which can be used by another Sub and of course the value stored in it?For instance:
Private SUB A ()
DIM A1 as String
A1 ="ABC"
END SUB
PRIVATE SUB B()
PRINT A1
END SUB
I'm trying to add filds to a table, and when I try to save I get the error message: cannot define fields more than once. The problem is, there are no duplicate field names. I've run compact and repair (several times) with no change.
Any ideas?
Thanks,
Mary
I have one color scheme I want to use all through the database I am developing. The next examples have just one color defined, to make it simpler (a dark blue, that I would call B1)
Code:
private sub setlabel()
Dim B1
B1 = RGB (0,52,105)
me.label1.forecolor = B1
end sub
... however this means I have to repeat the color definition every sub, so I thought would be neater to define a function to set my color codes (I have 20 colors).
Code:
Function SetColor()
Dim B1
B1 = RGB (0,52,105)
End function
My objective, is when I'm working in forms, Iwould (ideally) call this function "setcolor" and just write my code for the blue. I tried the examples below:
Code:
Private sub setlabel()
SetColor()
me.label1.forecolor = B1
end sub
[code]...
Again, this is probably some definition of arguments or dimensions that I am not aware oh. How to predefine the colors in a function to give them a "short" code which I can call in any sub in the database?
I have a multi-user database. I would like based on the logged-in user, some buttons and controls in different forms be disabled and the others be enabled.
There is a login form that gets the username; I made also a function to define authorities for users in it.
My plan is that when user enters to the database, on load of the main menu the function calls and disables the defined controls in different forms. I tried to use this kind of codes:
Function User_1()
[Forms]![frmMainMenu].[cmdUpdateDatabase].Enabled = False
[Forms]![frmChooseReports]![cmdOrdersFollowUpReports].Enabled = False
End Function
Function User_2()
[Forms]![frmMainMenu].[cmdChooseCharts].Enabled = False
End Function
But this code only works for the forms that are opened at the moment and if one of them is closed the system gives Error.
I have a table which is formatted as shown:
ID, My_Var, My_Value, Notes
This table holds variables that I want to declare to use throughout my application. I have been told in another thread that tempVars are the best way to do this.
I have written the following code, which works on a limited basis:
Private Sub btnSetVAr_click()
TempVars.Add "udvVar", Me!My_value.Value
End Sub
This defines a single variable on each button press, fine to work out how the code works, but not much use. What I really need to do is when the initial menu screen loads to call a routine to assign all the variables stored in the table using a loop to do this. The idea is to make all variables values easy to edit or add to, rather than have to edit code each time we need to change them.
The variables table holds 14 records so far, such as:
My_Var, My_Value
EuroRate, 0.885
ConDisc, 0.9
MollDisc, 0.8
As well as holding numbers, they hold strings and date values.
So, on loading the initial form, use an event to assign the variables from the table using the tempVar name as the value held in "My_Var" and it's value as held in "My_Value"
I'm just to work with Fox Pro, and I am therefore puzzled with how to define the exact number of digits in a field in a table in Access. If I need 9 digits + 2 decimals in a number filed, how do I define that in design view?
Also, I need to know how to export a table into a text file, with a format without any spaces, and each record is divided with a new line. This an old IBM text format file.
Thanks, Torsan
I am trying to define a path to identify a current folder - I'll try and explain the way the following code works first (and it does work 100%)
The following code identifies folders and sub-folder structures and imports them (their structures and folder paths and filenames) into a DB
It also simultaneously retrieve's any xml docs within those respective folders and imports the XML data into the same database ........ and then moves those folders into a "processing folder" location.
Cool yes, but I can only import the XML doc's at the moment, by hard coding the path (like this):-
path = "C:UsersjeremybDesktopsnapmadXYZ123XYZFILES 0061940"
The code is highlighted as above - in the FULL code below:
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Code Begins:-
Option Compare Database
Option Explicit
[Code]....
I would like to define primary key to show in default value "n/=Right(Year(Date());2)"
n - next real number
=Right(Year(Date());2) - equal two last digits from year
The big problem is when we have next year e.g. 2014 real number should count anew.
E.G 6/13, 7/13, 8/13, 9/13, 1/14
Is it possible to define the position of a navigation button. For example, I want my first navigation button not starting totally on the left but a bit indented. Possible?
Secondly, suppose I have combo boxes on my first navigation button and for each combo box and choose a value, next I move to the second navigation and then back to the first navigation button. Then it always seems that the values of my combo boxed are reset to default value. Can this be avoided?
I would like to define a field (mailingaddresscounty) as type lookup using a field (county) from another table (Zip). But instead of the user selecting from a long list, I would like the selection to be automatically made based on the value of another field (mailingaddresszipcode).The two tables are Organizations and Zips. The user enters the 9 digit zipcode in the organization table (mailingaddresszipcode). I would like the county field in the organization table (mailingaddresscounty) to draw from (link to?) the corresponding 5 digit zipcode in the Zip table (zip) and return the correct county for that zipcode.
View 1 Replies View RelatedI am looking to find out if I can build a "on the fly" pass-through query based on user predefined data.
Basically I am linking to a massive database. Access link to DB2 table. In order to make the system useable for the users they need to edit the query before it's ran. If not the query over the network takes around 5 minutes every time it's accessed and options such as filters and sorting are chosen. So if a user sorts one column and filters on another the query has now ran 3 times. Once to open, once to filter, and once to sort. That just took 15 minutes.
So If there is a way to build macro or form that asks them for specific information first and then modify's the query so that it only gets ran once that would be fantastic.
Example:Table has 7 fields/columns. Usually they will do 3 things. Pull back data from either a month or quarter. Then filter a column by it's content. Then sort by date of another date/timestamp column.
I would like to declare Global or Public variables from a table so they can be added to or edited easily. I had the following function to do this with Alpha Five but at the moment my lack of knowledge of Access VBA is making this task difficult.
Here is the function that I use in Alpha:
FUNCTION udVars AS A (udTabName AS C )
dim codeStr as c
t=table.open_session(udTabName,file_ro_shared)
t.fetch_first()
while .not. t.fetch_eof()
[Code] ....
It opens a table reads in the records and then makes them into a string the string would look something like this:
"Public EuroRate as Single = 0.885"
I would then need to use this string to declare the variables but not sure what command to use - I was looking at the Eval function last night but couldn't get this to work...
The table would hold strings for all the above so you would have:
My_Var (variable name)
My_Typ (type of variable e.g. Single)
My_Val (value e.g. 0.885)
The table would hold as many variables as required, some would be dates, some paths for making directories and some would be numbers.
I have a query and a form, and what I want to be able to do is have the user type in within the form the parameters for the query.
The part of the query that will hold the parameters is based on an amount (formatted as Currency), but I want the user to be able to enter >10 , =<100 or >100000 and get the correct results.
I have already set up the query and the form with unbound cells which are then referenced in the query I've tried just one cell where the user would enter >100000 or tried two cells where one cell would be for >,< etc and one cell for the value (which is formatted as currency), but that didn't work either.
The idea is that you enter the parameter and value then click on a button that runs a macro to export the query based or the user parameters, but everytime I try it I get a box appearing saying Property not Found.
I have created an union query to pull together the same data from 2 ODBC tables (seperate countries).As there is a clash in the client number I have added a "N" prefix to differentiate NZ from Australia, as below:
The problem I now have is that I get type mismatch when linking to another table. How could I change the SQL below to dictate the field format to number (providing it will accept the "N" prefix) or all to text?
SELECT dbo_ClientMaster.ClientNumber, dbo_ClientMaster.Name, dbo_ClientMaster.AddressLine1, dbo_ClientMaster.AddressLine2, dbo_ClientMaster.AddressLine3, dbo_ClientMaster.AddressLine4, dbo_ClientMaster.TradeCode, dbo_ClientMaster.ReviewLimit, dbo_ClientMaster.ClientStartDate, dbo_ClientMaster.TypeOfTrade, dbo_ClientMaster.NextReviewDate, dbo_ClientMaster.LastReviewDate, dbo_ClientMaster.TerminationDate, dbo_ClientMaster.TerminationReason, dbo_ClientMaster.BankSortCode, dbo_ClientMaster.BankAccountNumber
[code]....
I have a table of companies, with fields that contain data for 2008, 2009, 2010, etc.
I'd like to design a query that allows the user to define on a form the field, or the year, they want to query. (by text string or some other way, I am good enough with the VBA that I can figure this part out once the beginning part is figured out)
I want 2009 data, I type in 2009 and get 2009 data from a table with many years' worth of data. But I only need one query for all the years.
I notice that this is easy with reports, just use SQL in the the wherecondition, argument, but I can't find the equivalent for queries. I tried putting the text field from the form in the SQL in the query, but could not get that to work.
I have a form (Datasheet). I need to define some variable in form as string, which can work with any event. E.G in column "A"on event after update, in column "B" on event after update...
I will try to explain with a simple example : form (datasheet) columns: "A", "B"
on event after update in coulmn "A", I could have some like this:
(variable what I need to define) = 3
on event after update in coulmn "B", I could have some like this:
If (variable what I need to define) = 3 then
msgbox "ok"
end if
Now I try to work around the problem and use another column "c" to keep the value from after update A - but I know that, it's bad solution -Right?
Is it possible (and how...) to declare a module-specific form variable (or any variable for that matter) at the top of said module, so it doesn't need to be set at the start of each subsequent procedure?
I have a module of code specific to one form with a number of procedures, each one of which requires me to Dim / Set the form variable. It would be much neater if I could do it once at the start.
Code:
Option Compare Database
Option Explicit
Public Sub Populate(lngParameter As Long)Dim frm As Form
[Code] ......
I need to find the respective numbers for a textstring when for
abcdefghijkl stand the numbers
79 81 82 83 84 85 86 87 88 89 91 92
The textstring to "decode" is for example is 'adgjk'
The result (79 83 86 89 91) should be added into a table by Looping.
rs.Addnew
rs("Letter")= myarray??
rs("corNumber")= myarray?
rs.update
rs.movenext
Something like this.
But I cannot define and Setup the Array, which should be the best way for doing this.
The Array does not change its Content nor its Dimension.
Both, letters and numbers are strings.