Updating Specific Fields In Table
Dec 9, 2005
Hello everybody. I am new to Access and as such I don’t know how to perform the following. Please help me out.
The project is about a library loan system. I have a database consisting of the following tables: member (MemCode, LName, …), book (BkCode, Title, TotalCopies,…), purchase (PurDate, BkCode, CopiesBought,…) and transaction (MemCode, BkCode, RentalDate,ReturnDate,Returned).
TotalCopies is the total no. of copies there are of the book
CopiesBought is the number of copies that have been purchased
RentalDate is the date on which book is being loaned
ReturnDate is the last date on which the book has to be returned
Returned is a Yes/No field to indicate if the book has been returned
In the library a member can take only one book at a time.
Problem 1:
The library may have several copies of a particular book, but all will have the same code. For example, a book, let’s say Harry Potter 6 has code 97. Initially only 1 copy of the book is purchased. When the librarian sees the book has great demand, he decides to purchase 3 more copies. All the copies will have the same code, i.e., 97. Only the TotalCopies will become 4.
BkCode is Autonumber in book table and Number in Purchase table. Relationship is 1:many.
I have a Purchase form to record details of books being purchased. I have a command button “Book form” that opens the book form when the user clicks on it. He will use it if the book being purchased is not already available in the library. What I want is:
(i)If he opens the book form to fill in details of the book, then when he closes the form I want the book details to automatically appear in the corresponding fields on the Purchase form.
(ii)The CopiesBought will have to be used to update the TotalCopies in the book table. How should I do this?
Problem 2:
When the user wants to record a loan, the system will need to check if that member already has a book which he has not yet returned. If it is so, then the system will need to provide a prompt to inform the user of this and consequently blocks the user from completing the transaction. How do I do this?
Thanking you in advance for your help.
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Jul 6, 2012
I have 2 tables.
Table 1: Master table
Table 2: Temporary table
This is my current process:
Every quarter I run a report that pulls loans that meet specific criteria.I export this report into excel (the loans fall into column A)I add a file number and box number in columns B and C.I import the excel spreadsheet to table 2 (they're linked so I don't need to import, it's automatic)
Now that I have the updated information back into the database (table 2), how can I get this information back into table 1? The excel spreadsheet only contains a few loans that need to be updated in table 1. I have tried creating an update query with both tables linked and use the "update to" field. However, when I tried to run the query, it says I have 0 records updated.
My update query is as follows:
Field: Access Bar Code
Table: Table 1
Update To: [Table 2].[Access Bar Code]
Field: Access Box Number
Table: Table 1
Update To: [Table 2].[Access Box Number]
Basically I'm trying to have the query update specific fields in table 1 based on the information from table 2.
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Dec 16, 2014
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'Creates quote date and prints quote
Me.QuoteDate = Now()
Me.cbAgentID.Requery
DoCmd.OpenReport "Quote", acViewPreview, , "BookingID = " & Me.BookingID
End Sub
When the button is pressed the QuoteDate field (it is bound) should be be populated, but unfortunately it is not. I have played with refresh and requery but cannot derive a solution.
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Sep 15, 2014
I Have a table that contains the fields: CAT, CHAPTER, ID, someSrting and Completed
CAT, CHAPTER, ID are numbers and Completed is true/false. If I mark a certain entry as Complted (true), I want all the records with the same (CAT, CHAPTER, ID) as the one I marked to be updated to Completed.
For example, If I marked the entry cat:1 chapter:1 id:1 as completed (true), I want all the entrys that have cat:1 chapter:1 id:1 to be marked as completed (true)
the code I wrote is:
Code:
Private Pub Completed_check_AfterUpdate()
Dim myCC
Dim myCat
Dim myChap
Dim myID
myCC = Me.Completed_check
myCat = Me.CAT
myChap = Me.CHAPTER
myID = Me.ID
CurrentDb.Execute "Update [my Table] " _
& "SET Completed = (" & myCC & ") " _
& "WHERE CAT = (" & myCat & ") And CHAPTER = (" & myChap & ") And ID = (" & myID & ") ;"
End Sub
I'm running the code (my clicking the "check box") and nothing happens, I was thinking that maybe I defined the after "WHERE" statement wrong, and there are 0 entrys changed..
UPDATE: after removing the
Code:
"& "WHERE..."
row, the code does update the entire table, so I have a problem with the syntax of the sql..
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Jun 17, 2007
Hello
I have a table with 3 fields:
- ID no (primany key), Time1 and Time2
I have 3 records with ID no 1 to 3.
So my table look like this
ID no: Time1: Time2:
1 [emty] [emty]
2 [emty] [emty]
3 [emty] [emty]
I have an Excel document with the data for field Time1 and another Excel dokument with the data for field Time2. Excel doc1 have 2 colums named ID no and Time1. And Excel doc2 have 2 colums named ID no and Time2.
How do I import/update these data into my table?
I have tried wiht a adding-quiry but it only works if the table is complety emty and only with one Excel doc. Trying the second Excel doc afterwards only makes an error and no fields are updated.:confused:
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Nov 17, 2004
Hi all~
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Nov 14, 2007
Hi everyone,
I was wondering if this is possible to do:
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Nov 26, 2005
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Dim strSQL As String
Dim strMsg As String
Dim ctl As Control
Set ctl = Screen.ActiveControl
strMsg = "Country " & NewData & " Is not listed!" & vbCrLf & "Do you want to
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CurrentDb.Execute strSQL
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ctl.Undo
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Another question, I want the user to select a region (a combo box ) on the
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Private Sub CountryName_NotInList(NewData As String, Response As Integer)
Dim strSQL As String
Dim strMsg As String
Dim ctl As Control
Set ctl = Screen.ActiveControl
strMsg = "Country " & NewData & " Is not listed!" & vbCrLf & "Do you want to
add it?"
If MsgBox(strMsg, vbYesNo, "Not listed") = vbYes Then
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CurrentDb.Execute strSQL
Response = acDataErrAdded
Else
ctl.Undo
Response = acDataErrContinue
End If
End Sub
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Code:
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Hey Everyone,
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Hey,
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Thanks.
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I've attached the db for some1 to help me...
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Feb 2, 2008
Here's my problem:
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Microsoft access didnt update 0 fileds due to a type conversion failure,16 records due to key violations,0 records due to validation rule violations
:confused:
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Hey ya'll,
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