Problem With Check Constraint
Mar 13, 2005
I have a table with the following fields:
format
region
rarity
they are all set to lookup value lists:
format: tape; dvd
region: 0;1;2;3;4;5;6;7;8;pal;ntsc
rarity: 1;2;3;4;5
I have a check that makes sure (format, rarity, region) is unique.
It works fine until i set region to either "pal" or "ntsc", then I get the following error.
"Error 'Error evaluating CHECK constraint. ' in the validation rule."
I set up the constraint by going to table design view -> indexes -> created new index with each of the three fields listed one after another -> set to primary=no, unique=yes, ignore nulls=no.
Can anyone help me work out why im getting this problem?
View Replies
ADVERTISEMENT
Sep 22, 2014
Error: Error evaluating check constraint in the validation rule
What does this mean?
I have used a combo box in the table to input into 2 fields - one restricted to numbers 1 to 5 and the other restricted to letters A to E
Message comes up when I try to change the view or press submit. Does it have anything to do with the field type?
View 2 Replies
View Related
Feb 25, 2005
In Oracle, you can set up table constraints which constrain data accross mutliple attributes/fields. Can you do this in Access?
For example. I have:
OrderLine(orderNum,orderLineNum,[productNum],date)
I dont want to allow for the same product to be put on one order twice. Therefore, (orderNum,productNum) must be unique, but productNum is not a part of the primary key so it can be repeated in every row for all the database cares. :P
How can I set this up.
In Oracle I would do something like:
CONSTRAINT chk_prod CHECK UNIQUE (orderNum, productNum)
Thanks for any help.
View 2 Replies
View Related
Sep 3, 2007
I have an Access 2002 database with a relationship between 2 tables I want to delete using VB code. I setup the relationship from within Access. Is there a way to find out the name of the relationship, if there is such a thing. The tables are: TableA.Id linking to TableB.BankAcctId with both cascade functions. What would the VB code look like? Something like ALTER TableB DROP CONSTRAINT ...
Thanks
View 4 Replies
View Related
Sep 9, 2005
Hi,
I have developed a small hotel booking system which inserts records into a reservations table. The table looks like this:
[ReservationNr][StartDate][EndDate][RoomNr]
I am now trying to add a constraint which prevents a room from beeing booked twice on the same day, hence the time period defined by StartDate and EndDate in a record must not overlap with another record.
Is Access capable of adding such a constraint?
It was easy to add a constraint that prevents a booking where the StartDate is before the EndDate, but this one needs to reference already existing records.
Any help would be much appreciated.
Thanks
View 2 Replies
View Related
Jun 26, 2005
Hi everybody .I created a bounded form that allows user to enter the following fields information
to the sql server db that is linked to access .The fields are: Projectno, taskcode, taskdiscription
and total hours worked.
I want for example when a user tries to enter total hours work for a user (Hours in hours worked table) and
if he did not already enter wages of the employee for that particular project (amount in hourly wages table)
that user get a massage prompt and ask user to enter amount in to hourly wages table first. Possibly opening that form.
I be happy if some one help me add this feature to my form. Thanks
http://i5.photobucket.com/albums/y180/method007/constraint.jpg (table reletionships pic)
View 1 Replies
View Related
Jun 29, 2005
Hi guys i got a form and sub form. When i leave the field hours empty in the sub form and try to click on close or some where in the form i get this error:
MsgBox "Primary key violation", , "Explanation"
instead of
MsgBox "Violation of Not Null constraint", , "Explanation"
i want to trap not null error and prompt the user that he has to enter value for hours field but aparently it does not. i be happy if some one help me fix this error .Thanks
picture of form in action:
http://i5.photobucket.com/albums/y1...tnullerror1.jpg
http://i5.photobucket.com/albums/y1...tnullerror2.jpg
code for on error :
Code:Private Sub Form_Error(DataErr As Integer, Response As Integer)Select Case DataErr Case 3162 MsgBox "Violation of Not Null constraint", , "Explanation" Case 3146 MsgBox "Primary key violation", , "Explanation" Case 3155 MsgBox "Trigger violation: 'Wages of the employee in this project is not existed. You must enter data of hourly wage first'", , "Explanation" Case Else MsgBox "Other errors" End SelectEnd Sub
View 1 Replies
View Related
Aug 17, 2005
Hi all. I want to check for not null value constraint for all tables in database . I tried the following but when i run it i get the following error:
Compile error:
Invalid Next control variable reference
I be happy if some one one help me fix this error.if i remove the bold lines the program workes well but it does not put not null for table fileds that requries value.
picture of the output without the bold part
http://i5.photobucket.com/albums/y1...007/notnull.jpg
Code:Option Compare Database''This module displays field name and type in a massage boxFunction ShowFields(pTable As String) As StringDim db As DatabaseDim rs As RecordsetDim I As Integer''Dim j As IntegerDim n As Integer''Dim NL As StringDim strHold As String, ST As String''Dim x As Variant''NL = Chr(13) & Chr(10) ' Define newline.Set db = CurrentDbSet rs = db.OpenRecordset(pTable)n = rs.Fields.CountReDim x(n - 1, 1) As String'''ST = "Create Table " & pTable & vbCrLf''adding Create table and table name to statementST = "Create Table " & pTable & vbCrLf & "("For I = 0 To (n - 1)For Each fld In tbl.Fields ST = ST & rs.Fields(I).Name & " " & FieldType(rs.Fields(I).Type) & "," & vbCrLf If fld.Required = True Then ST = ST & " NOT NULL" & " " Else ST = ST End IfNext Irs.Closedb.CloseSet db = NothingShowFields = ST '' returns the fields name to main functionEnd Function
on click even code
Code: For Each T In db.TableDefs '''Skip the system tables If Left(T.Name, 4) <> "MSys" Then ''' this line determines the primary key of the table ''' by calling GetPk function from module pk = Left(GetPK(T, db), InStr(1, GetPK(T, db), "<-") - 1) cont = cont & ShowFields(T.Name) & vbCrLf & " primary key " & "(" & pk & ")" & vbCrLf & ")" & vbCrLf End If Next T ''' This line of code post the generated table statment to a massage box MsgBox cont
View 1 Replies
View Related
Apr 6, 2008
Can anybody help me understand why I get the error
"Syntax error in CONSTRAINT clause"?
I get it in Access 2003 and Access 2007.
Both are clean installs with no add-ins
Running this code in VBA, or pasting the SQL directly in a query results in the same error.
Sub test()
sTableName = "Test"
sSQL = "CREATE TABLE " & sTableName & "_Config (" _
& "[idConfig] Int Primary Key," _
& "[Config] Memo," _
& "[Instrument] int," _
& "[Serial_No] Text(25)," _
& "[Firmware] int," _
& "[Orientation] int," _
& "[Sensors] int," _
& "[Sensor_Size] float," _
& "[Sensor_1_Distance] float)"
DoCmd.RunSQL sSQL
sSQL = "CREATE TABLE " & sTableName & "_Leader (" _
& "[idLeader] Int Primary Key," _
& "[idGroup] int," _
& "[idFile] int," _
& "[idConfig] int," _
& "[DateTime] DateTime," _
& "[Heading] float, [Pitch] float, [Roll] float," _
& "[Pressure] float, [Depth_BSL] float, [Height_ASB] float,"
_
& "[Min_Valid_Sensor] int, [Max_Valid_Sensor] int," _
& "[ASM_Bed_Level] float," _
& "CONSTRAINT [FK_Test_Leader_idConfig] FOREIGN KEY ([idConfig]) REFERENCES [Test_Config] ([idConfig]) ON DELETE CASCADE ON UPDATE CASCADE" _
& ")"
DoCmd.RunSQL sSQL
End Sub
The first table is created just fine.
And if I leave the constraint clause out, the second table is created also.
If I try to run it as an SQL query right in Access, after the error is delivered, it highlights the word DELETE, and if I reverse the update and delete portions, it highlights the word UPDATE.
I have looked up the clause in Access help and even using their example, i get the same error.
Any help will surely be appreciated!
View 2 Replies
View Related
Sep 29, 2014
I am developing a simple database for students to register courses using Microsoft Access 2010. I have 4 tables: Student, Register, Course, and Section (1 Course can have many Sections).
Then, there is a criteria that a student can only take up to 6 courses. Hence, may I know that where and how can I include this constraint? I believe that it should be in the Macro (Before Change) of the table Register...
My relationship is: Student -> Register <- Section <- Course
View 1 Replies
View Related
Jun 26, 2014
how can i make a image appear in my form when there is a check in the check box from the table?
View 14 Replies
View Related
Mar 19, 2007
Long time lurker, first time poster.
I'm in need a of a check-in/check-out application for my company. We have about 550-600 employees at any given time and our turnover is about 20-30% per year. Our check-in/check-out process requires our employees to personally visit between 30-40 areas in our company (personnel, safety, credentials, parking, insurance, etc) within the first month of employment. This is currently done manually and is a huge drain on labor, especially when check-in sheets are lost, misplaced or, in some cases, forged.
I'm looking to build a database that would be intranet based, password secure (by check-in area) that would allow the new employee to present at a particular check-in, check-out site, complete that portion of the check-in/out process and then allow the person responsible for the check-in/out to enter the status into the database. At any point in the process, I would want to know the status of the person checking in/out (how long they've been checking in/out and what portion of the process have they completed).
Can this be done in ACCESS?
Thanks
View 1 Replies
View Related
Apr 25, 2005
Hi
I have sendkey "{f7}" on loss focus.
this works great as a spell check but then I get the mesage box that spell check is complete.
How do I stop this box from occuring?
View 2 Replies
View Related
Jun 8, 2005
Does anyone know or have an example of how to use check box's to filter out things in a form. What I want to do here is I have like 5 different locations and I want to be able to choose which of those location, whether it be one or more checked at a time and then have whatever those check boxes are checked to be filtered out.
View 1 Replies
View Related
Apr 8, 2008
Hello,
I have a continious form containing data from the table "tblToernament".
On that form there is a combobox containing teams that are stores in the table "tblTeams".
The table looks like this:
ID | TeamName
1 | Team01
2 | Team02
3 | Team03
4 | Team04
When I select, for example, Team02 in the combobox I want that value on, after I selected it from the combo NOT to be in the combobox.
Can anybody please help me on this?
View 9 Replies
View Related
May 15, 2007
Hello, im making a database for a charity as part of my work experience and id just like someone to check over it for me. If you see any issues please let me know. Im already aware of changing text PK's to autonumber, this is a prototype so im not going to change the PK's at the min.
Any ideas, or ways to improve it?
You can find the LDM or ER-D here: (i understand that it may be difficult for you to follow since you dont know the system! But please have a go...) 17447
Thanks very much for your help.
Ant...
View 1 Replies
View Related
May 3, 2005
Hey guys..
I was working on my project again as usual, which is about transaction of cars coming in and going out (car pool system), So i created a table then a form for this. In the table, i put the option of 'Yes/No'. So, for the form, i want to create a search system which will include a search system.
My Idea:
I want to make a check box, as a search system, so when it is checked and clicked on a command button, it searches for all records with 'Yes'. and if not checked, and clicked on command button, then it searches for all records with 'No'.
Now i did my research, on google and stuff also in the access help but it ddnt help much.
To be honest with you guys, i dont know much of visual basic writing, but i do understand most of it. ( you know, when you understand one language but can speak it?? same way :o ).
So i would request some one to give me instructions on this one. It would really be appriciated.
thanks a million !
View 7 Replies
View Related
Sep 3, 2005
Do check boxes have to be bound to be able to save them in your forms? In other words, when you check the box and click save, does the check box have to be bound so that the check mark can be saved? Thanks.
View 6 Replies
View Related
Dec 16, 2005
I want to connect a single check box to a record of check boxes, so that when it is on yes (checked) all the other boxes are yes (checked) automatically. How do I go about doing this? Is there an expression I can build for it?
:confused:
View 4 Replies
View Related
Dec 15, 2006
Hi,
Is it possible to change the size of a check box? When I modify the height and width of the checkbox it doesn't appear to do anything.
Thanks
Kabir
View 1 Replies
View Related
Sep 9, 2004
Hi,
I know there is probably a simple answer to this question, but im wondering if there is a way to make the value of a "true" checkbox anything but -1. i'd like the checked box to display a positive 1 in the corresponding table, so that they may be added up for a further query.....
i am working with IIF statements now with no luck,
Please tell me how i can fix it, and if there is a simple way of changing the value to a positive number, or even to a letter or word!
Cheers!
Em
View 2 Replies
View Related
Jul 20, 2005
I have a access form that when a user clicks a button it runs a report for that particular record. When the user clicks this button to run the report I would like to have a check box or whatever else you recommend on the form that would become checked once the user runs this report so that they will know that they have already ran a report for this record. If they try to run it again a msg box will appear letting them know that a report has already been created but if they want they can run it again. Any Ideas or HELP?????
THANKS!!!!!!!!!!!!!!
View 3 Replies
View Related
Aug 17, 2005
how do you check if a check box is checked?
I have tried this but it does not work...
If Me.Check25.value = "no" Or Me.Check25.value = "" Then
MsgBox "You must agree to the terms below.", vbOKOnly, "Required Data"
Me.Check25.SetFocus
Exit Sub
End If
View 2 Replies
View Related
Oct 11, 2005
What the easiest way to turn text to an integer - ir have vaiable defined as long and an inputbox - want to keep asking for an input until I get an integer.
Have IsNumeric - can this be applied to int.
Or could I use localised error handling?
Thanks
View 9 Replies
View Related
Jan 2, 2006
Hi
In my tables I have set a field to Yes/No and the format to be True/False.
When I activate the table it shows the field as a checkbox, however when I create a List Box on a form to that table it displays the fields as True/False, how can I get the list box to also display the field as a checkbox.
dave
View 2 Replies
View Related
Jul 13, 2006
Hi. I recently started using Access 2003 to create a contact management database. One of the section is titled "Areas of Interest' with nine categories of nine respective check boxes. I made the nine check boxes and when I click one all seems fine. However when I move onto the next person in the database, the check box clicked on the previous contact is already clicked and continues to be so far every other client. How do I make the check box selection distinct per contact?
Thanks. My apologies if the answer is easy and obvious. Take care.
View 1 Replies
View Related
