Multi Table Relation Searches In Access Database?
May 26, 2012
there is a database, containing a table with personnel. in the personnel table there are names and ID'sthere is a second table departemens, containing the names of departements and their ID's.in the third table it says which departement ID and which personnel ID are to be linked,
example
the employee called ruben has an ID 5
the employee called kevin has an ID 10
[code].....
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Aug 30, 2009
I want to add a new table in my accdb and copy the content tfrom an existing table into the new one.
Is there an easy way to do this?
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Jul 19, 2010
I have created a strongly typed dataset in the VS 2005 Dataset Designer. There are two tables that relates to each other in a one to many relationship: Claim and ClaimDetail. The designer automatically creates a function GetClaimDetailRows which returns all ClaimDetailRows for a ClaimRow. Why is this Array's length always 0? Because ClaimDetail contains more than 40 Million rows, i did'nt fill it before i call GetClaimDetailRows but had configured it's selectcommand that it takes a parameter idData to fill only the related records. But that seems not to work because the ClaimDetail-Datatable is empty.
The automatically generated function in the ClaimRow-Class which returns all related ClaimDetailRows:
Public Function GetClaimDetailRows() As ClaimDetailRow()
If (Me.Table.ChildRelations("Claim_ClaimDetail") Is Nothing) Then
Return New ClaimDetailRow(-1) {}
Else
Return CType(MyBase.GetChildRows(Me.Table.ChildRelations("Claim_ClaimDetail")),ClaimDetailRow())
End If
End Function
When debugging I see that it jumps into the else block but returns 0 rows. Do I have to fill the Claimdetail-Datatable first(ClearBeforeFill=True) for each Claim? But then I don't need to use this function anymore. I now fill the Datatable(ClearBeforeFill=True)before i call the Child-function and it works. But I don't understand why it could not throw an exception(optionally) when I try to acess a child-relation without having that datatable being filled(at least with 0 rows). Instead of that it returns 0 rows what can be correct or incorrect and is difficult to detect.
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Apr 27, 2012
I have been using access for my applications from over 4 years now. I realize its time to move on now and i need suggestions for a new database. Here are my requirements :should be able to connect it with Vb.net windows form frontend GUI - all database functions such as add/delete/edit/update will be done through the vb.net front-end only.Should be able to place the db on LAN and each client on the LAN can then access the centrally stored db through their individual front-ends.At the most 5-6 users will be reading/writing to the database at the same time , so the database should not crash or slow down Since i come from MS access background, i would like something thats similar to it so that i can learn and adapt to it quickly.Not very important, but i think its worth mentioning. This db will be the main central db for my .net application.My .net application will also be interacting with quickbooks and magento via some apis but ultimately all this data will go to the central db. So just curious, will there be any compataibility issues with the database that you suggest Should handle about 10 tables and around 10k records in each table Should be secure - just that i should be able to lock it up or anyhow prevent it being accessed from anywhere else other than the vb.net front-end.
Lastly, I would prefer it to be free to use if possible but not essential. I realize there are some topics like mysql vs sqllite and on databases, but pls understand i need suggestions for one that will be apt for the purposes i have listed above.
Edit : Just curious - Would i pushing the limits if i still stick to access - i understand access won't be good for multi-user access but i guess 5 users is not much ?
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Apr 5, 2010
i have a database created in access showing in multi text-boxes in visual basic 2008 express edition. the database is showing music information and sales (tune name, artist, sales, and year issued) there are a few processes i want to do but can not work out the coding.1. display the top ten selling tunes in a particular year in order ( the year needs to be selected from a list box and displayed in a list box)
2.display the total sales in a particular year ( year selected from a list box)3. display the tune with the greatest sales in a particular year ( year selected from a list box)
[Code]...
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Mar 30, 2009
I have two Access database, say database One.mdb and Two.mdb. I want to use VB2005 to export tblCustomer from One.mdb to Two.mdb, and replace the existing tblCustomer in Two.mdb, during run time. I basically want to simulate the export function that is available in MS Access (which can export one table from one Access database to another) with VB2005 during run time. I can think of a way by querying the table to a dataset and then delete everything on the other database before filling the table in that database with the dataset
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May 1, 2011
The database strutcure is:
Id Name ParentId
1 File NULL
2 Open 1
3 Save 1
[Code]....
I am using the database PostgreSQL.
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Mar 14, 2011
I'm writing an asp.net page with a simple registration form that connects to my access database and inserts the values in the table. So I have my database, my registration page, everything looks fine in my code, but there's a syntax error I can't seem to figure out. When I go on my webpage and click submit, it says : Syntax error in INSERT INTO instruction.
Here's my code:
<%@Page language="vb" explicit="true" debug="true"%>
<%@Import Namespace="System.Data"%>
<%@Import Namespace="System.Data.OleDb"%>
[CODE]...
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May 1, 2010
I need to Update Access Database Table with Data from a Different Table. Not all the rows of original Table to be Updated will be affected. How do you loop through the 2 Tables to do the required Update.
The Table to be updated is called "RecordList" and Table with new Data is called "RecListReport".Every attempt I've made won't work. I tried to Use 2 Datagridviews but couldn't get it to work right.
NewTestConn()
Dim Testconn2 As New OleDbConnection(NewTestConn1)
Dim da As New OleDbDataAdapter
[Code]....
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Mar 31, 2009
I have two Access database, say database One.mdb and Two.mdb. I want to use VB2005 to export tblCustomer from One.mdb to Two.mdb, and replace the existing tblCustomer in Two.mdb, during run time. I basically want to simulate the export function that is available in MS Access (which can export one table from one Access database to another) with VB2005 during run time. I can think of a way by querying the table to a dataset and then delete everything on the other database before filling the table in that database with the dataset. However, there should be something simpler and faster than that, shouldn't it? Any idea?
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Jul 14, 2010
I have a table in a database that I need to access. At the moment I am trying to get the Table information to go into a dropdown box. I know how to open a database but I don't know how to open a SQL one. Also when I used VB5 I used to "Set" the database to open. When I type "Set" it comes up in the blue letters and then disappears. Has Set changed to something else?
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Apr 13, 2009
I am creating a search function which searches a database for keywords in a selected field in FilmTable (name of table to be searched)
This is the SQL I am using:
CODE:
It is saying there is an error in the FROM syntax
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May 9, 2011
I have an Access database with some table and some queries.Here you see one query which returns 2507 records:I also added this database to a vb.net project.However, if i try to fill the datatable of the query with the specific tableadapter, the datatable stays empty. Also when I click the query in the dataset and choose 'preview data' I get none of the 2507 records:Any idea why he won't load the records into the dataset?
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May 10, 2010
I'm running into a bit of an issue deleting a table from an acces database.[code]...
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Nov 21, 2011
I have an access database (made by other application) that I need to read it. The problem I have is that the tables I need to read do not have the read permission; the access permission is set to "Share Deny Write"; though I can open the database in MS Access and export the table to another mdb where I can read it. Is there any way to automate this, or to set read permission on the database using VB.net? Is there any other way to get the info from table not having the read permission?
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Jun 22, 2010
How do i find out the number, names and datatype of fields in an Access table
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Dec 21, 2011
How would I do this? I have no code at this time for it, but how could I do this?
I have an Inventory table that contains a lot of Trash Containers (Construction Dumpsters).
All of these containers have a field in the table for their "Size". If I wanted to quickly change all of the price for all Trash Containers that have a Size "40", how could I loop through the table and for each container that has a size of "40", I want to change the price lets say from $100 to $120.
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Feb 25, 2012
Does someone can help me out to a RichTextBox recording a name, surname, telephone number and address in the Access Database Table, where the name is repeated every 5-th line in the RichTextBox, the same name each of the 5-line phone every 5-th line, address each of the 5-line. my code is.
[Code]...
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Nov 7, 2010
I have an access database which includes Customers table and one of its columns is the Birth date. In project in visual studio, using visual basic 2010, I have a form with a calendar. In this form I want to show who has birthday today. How can I compare all the customer�s birth date with the day we have today? And have as result a label with all birthdays?
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Oct 21, 2011
I need to add a new field to an Access database table, the user has filled the table with data, so I have to add the new field but to preserve the old data.
I have found the ALTER TABLE statement, but it gives me an error (ALTER TABLE is not a valid statement)
I done this in php+mysql with "ALTER TABLE People ADD Address TEXT NULL AFTER Name" (as an example)
How can do this in VB2010?
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Mar 5, 2011
Is it possible to check a MS Access database table with existing entries to see if one of the fields is empty.[code]....
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Feb 23, 2010
do i clear and entire database through the program?
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Sep 8, 2010
I am using OledDb to create/retrieve/delete data from Access databases. At one point in the solution, I the user adds data to a new table and the table name is defined by the user. The obvious problem with this is that the user could add spaces, characters, and Access/SQL keywords that are not allowed in the table name. Later in the solution, the user should be able to identify their saved table and retrieve it. I have considered the brute force method of formatting the input to remove offending characters and then reformat for the user's view, but that seems like something I would like to avoid. I have also considered placing restrictions on the textbox with masks, key event restrictions, and checks for conflicts with keywords, but I would also like to avoid that. So, my question is, does anyone have a creative solution for identifying a table name with something like 'my name is table number *1'?
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Apr 9, 2012
so far i have this for my code:
Using myConnection As New System.Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & databasePath & ";User Id=admin;Password=;")
[Code]......
This did not work but did when i just tried creating the table and not the fields.
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Nov 23, 2011
Iam trying to link a database to a website. I want the website to allow a user to make a username (OrgID) and password (OrgPassword) and have them apear in my database table (Organizer). This is the code I have so far, but I cannot get it to update the information in the database.
protected void RegisterUser_CreatedUser(object sender, EventArgs e)
{
if (txtUserName.Text != "" && OrgPassword.Text !="")
[code]....
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Aug 10, 2010
I am making a application that has the ability to edit values on a access database table. As a simple example, My table looks something like this:
Order Number Completed
2000 No
2001 No
2002 No
The application needs to edit the Completed columns. I have 1 text box, and 1 button in my form. You enter the Oder Number in the textbox and press the button. The VB application then needs to change the Completed to Yes in the database. Example, I type in 2002 in the textbox and press a button. The application changes Completed to Yes for this order number in the access database and saves/updates the database.
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May 17, 2011
I'm trying to link a datatable from one access db to another access db but i get this error:
Arguments are of the wrong type, are out of acceptable range, or are in conflict with one another.[code]...
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Mar 15, 2012
I have this code where I get the tree view of a table in access database..what I want is ..I want to add nodes on each base on it's ID...
this is the table
CODE:
And the treeview's output will beme will be a child node of Pet base on ID_Menu same as the ID...
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Mar 18, 2010
I was refering to this code that was upload by doug_
[URL]
I changed the path abit, and this is mine
Imports System.IO
Imports System.Data.OleDb
Public Class Form1
[Code].....
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Jun 22, 2010
i had problem in inserting data into a table in access database.i am using visual studio2005 for the projects.here is my code
Dim strConnection As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data source=" _
& "c:UsersBELLCONSULTDocumentsLIBRARY2.mdb "
Dim cn As OleDb.OleDbConnection = New OleDb.OleDbConnection(strConnection)
[Code].....
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