Insert The Records Into ODBC Linked Tables

May 25, 2007

Hi,

I have a lot data to append to ODBC linked table in MS Access. I want to know that which way is faster to append the records.

if I append the data into ODBC linked table,
1) create the one query (append) to insert the records into ODBC linked table
2) use the VBA code (DAO/ADO) to insert the records into ODBC linked table

which way is rather faster?

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Linked ODBC Tables

Nov 12, 2007

My problem is best explained by example;

In Access Database A, I have some linked ODBC tables (to an SQL Server database) and some local tables.

In Access Database B, I have a front end which links to all the tables in Access Database A.

The problem is, when I try to link the tables in B, I cannot see the ODBC tables linked in A. Is there any reason why not? 'Why not link Access Database B to the SQL Server tables directly?', you may ask. Well, there is an answer to that but it is quite difficult to explain. I assure you there is one. :p

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Jul 22, 2015

I have linked tables from SQL Server using ODBC connection that their location never changes. I have used certain fields of those tables to create queries and make table queries to derive to the information I needed.

On these tables on SQL Server, there is new data added daily. Every day, midnight, there's new data records added of whatever transactions took place in that working day. how often do I need to refresh linked tables in this case to get the latest data added. I mean, once I am linked, the make table query using those defined fields, would it get the latest data added by default when the query is executed, or I must refresh linked tables using Linked Table Manager and then run make table query.

Also, if I want the access to automatically refresh linked tables, can I use the following code? I have added this code, and executing it through a button, but I don't see anything happen, the database becomes inactive for couple seconds (I guess while it is updating) but I don't know is it updating the tables for sure or not, though I am not receiving any error when executing the code through the button.

Function RefreshLinkedTables()
Dim tdf As TableDef
For Each tdf In CurrentDb.TableDefs
If Len(tdf.Connect) > 0 Then
tdf.RefreshLink
End If
Next td
End Function

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Apr 30, 2015

How to Update ODBC linked tables on ms access?

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May 18, 2005

Hi!

I'll cut right down to it: I have an ODBC connection to a (SQL Server) test database on my development machine that is identical to the live database to which a (different) ODBC connection exists on the PC where this Access application is to be deployed. The problem is that when I deploy, there are some tables that have to be updates, because they still point to my test database. The other tables look like they use the default database for that user.

I used to be able to just copy the Access application and it would work without having to update any linked tables.

To clarify, the tables that work without a problem look like this in the Linked Table Manager:

t_mytable (DSN=odbc;)

And the problem tables have this:

t_mytable2 (DSN=odbc;DATABASE=my_test_db)

I don't seem to be able to clear that DATABASE= thing up. Can anybody tell me how this works?

If this question is overly trivial, I apologize.

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Jan 17, 2006

My tables are sybase linked tables to my Access front end. I get this error whenever i click away from my mainform while my not-null fields (textboxes) have not been entered. So, i would like to put an error message "somewhere" that tells the user to fill in the necessary fields and highlight the necessary textboxes in red, instead of this scary ODBC message
http://img82.imageshack.us/img82/6829/error0el.png :eek: :eek:

When i put my error handling in the afterUpdate or afterInsert Event. I still get the above error msg instead of my msgbox.
Where do i put this message? or should be question be, "what the proper way to handle this intimidating error? :)

Here's my error handling:

On Error GoTo Err_Form_AfterInsert

'do something


Exit_Form_AfterInsert:
Exit Sub

Err_Form_AfterInsert:
MsgBox Err.Description, vbExclamation, "Please enter the Project Name, Project Leader Initials, Main User and Status Code" & Err.Number
Me!Combo67.BackColor = "red"
Me!Combo65.BackColor = "red"
Me![Project Name].BackColor = "red"
Me![Project Leader Initials Combo].BackColor = "red"
Resume Exit_Form_AfterInsert


Thanks in advance for your help :D

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Our master database has linked tables with ODBC to our SQL database and linked tables to another access database. On the computer i'm running this from a System DSN data source has been created to connect to our SQL database.

The problem I'm having is when I run Macros to kick off Queries, there seems to be some kind of timeout issue and its not consistant. Sometimes in Access after a hour or two, the ODBC links somehow just fails. I have to go up to the menu and go to 'Get External Data' and then 'Link Tables' and relink the ODBC DSN connection. I make sure to hit save password and the end but that doesn't seem to do much. This also happens sometimes when I close and reopen the database.

But it seems erratic, sometimes it can stay up for hours but sometimes just a few mins. Sometimes I can close the Access database and reopen without losing connection. Being so erratic, this makes it very hard for me to run batch files nightly to kick off Macros. Is there some kind of inactivty timer for DSNs? Or maybe with the SQL database itself? Or is the way i'm restablishing the ODBC connection wrong ?

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Using access 2007 (and tried 2003) I have a linked ODBC table which is using an ORACLE driver. If I query the table directly through ORACLE/SQL for a particular 'job number' I get the following results:

18598979 3 06-DEC-13 10:10
18598979 0 03-DEC-13 10:34
18598979 1 03-DEC-13 10:34
18598979 2 06-DEC-13 08:20

However when I link the table through access and view the same job number within the table (not even using a query) it displays the following:

18598979 3 06/12/2013 10:10:00
18598979 3 06/12/2013 10:10:00
18598979 3 06/12/2013 10:10:00
18598979 3 06/12/2013 10:10:00

As you can see it only displays the MAX date/time and associated data from the 4 available records, duplicating the record. I've checked the field formats and they all look fine. It does the same if I pull through the table on it's own or with other linked tables.

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Sep 15, 2006

Hello,

The scenario. Two PC's, one older than the other, both running Windows 2000 (SP4) and Office 2000 (SP3). I use Access as a front end to a MySQL database, connections are made using ODBC.
I recently altered the structure of a table and attempted to re-link the table in access using the Linked Table Manager on the new PC. All that happened was the hourglass came on and never went away. I tried to do this on the old PC and it worked fine first time.

Any ideas why I can't get it to work on my new PC? It's quite important as I won't have the old PC with me much longer :-(

Regards,

Matt.

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Sep 6, 2006

Hi All,

I hope somebody can help me on this.

I still use Access 97.

I have 4 tables that contain a vehicle registration number field as their primary key and have one-to-one referential integrity applied.

I want to add a new registration to all 4 tables from one query. How?

I've tried many permutations with no success, such as putting the registration on a new table and trying to apply this to the 4 RI tables. I keep getting ref intergrity violations. Obviously I could disable the ref integrity rules, update the tables and then reapply the rules, but this is not possible if I am going to make the database available to a user group. A new registration needs to be added seamlessly. By not having ref integrity could leave the DB in an inconsistent state.

Help! If what I want is not directly possible, then any work-round would be appreciated.

Thanks in anticipation

Richard

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Sep 6, 2006

Hi All,

I hope somebody can help me on this.

I still use Access 97.

I have 4 tables that contain a vehicle registration number field as their primary key and have one-to-one referential integrity applied.

I want to add a new registration to all 4 tables from one query. How?

I've tried many permutations with no success, such as putting the registration on a new table and trying to apply this to the 4 RI tables. I keep getting ref intergrity violations. Obviously I could disable the ref integrity rules, update the tables and then reapply the rules, but this is not possible if I am going to make the database available to a user group. A new registration needs to be added seamlessly. By not having ref integrity could leave the DB in an inconsistent state.

Help! If what I want is not directly possible, then any work-round would be appreciated.

Thanks in anticipation

Richard

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I have two tables tbl1 and tbl2
tbl1 has 10 fields named tbl1.id tbl1.field2 tbl1.field3 tbl1.field4
tbl2 has only three fields tbl2.field1 tbl2.field2 tbl2.field3


Now i need to insert values into tbl1::
tbl1.field1 tbl1.field2 tbl1.field3
from
tbl2.field1 tbl2.field2 tbl2.field3
respectively, but i need to make sure if tbl2.field3 value is already there in tbl1.field3 then we don't need import those records. so we only need records if value of tbl2.field3 is not already there in tbl1.field3.

Please let me know What statement do I need to write so i can import all data from tbl2 into tbl1 by comparing as above.

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Jan 29, 2008

Hi all,
I've got one question again.
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Then I want to make another daily record form that is to find records from all categories which is created at the current date.
Is this possible to search records from various tables and combine them to show in one form or report?
Can anyone help me in this case?
thanks in advance.

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Mar 17, 2005

Hi,

I have built a form without a record source as i need to mess around with the fields before i save.

On save, i would like the form to save to an ODBC linked table in my database.

I save the record through a save button which has the following code attached to its on_Click event.

' NOTE: DAO 3.6 code
Dim db As Database
Dim rs As DAO.Recordset

Set db = CurrentDb
Set rs = db.OpenRecordset("tblODBCLinked", dbOpenTable)
With rs
.AddNew
.Fields("Country") = Me.txtCountry
.Fields("ID") = Me.ID
.Fields("Creation Date") = Now()
.Update
End With
rs.Close
Set rs = Nothing

I have no problem saving to a non-linked table with the above coding but always seems to fall over if as soon as i try to open the linked table. Ive debugged and the problem seems to be with opeing the table.

Set rs = db.OpenRecordset("tblODBCLinked", dbOpenTable)

Thanks in Advance for any suggestions

Access 97 / Windows NT / Full Read Write access. Not a permissions issue

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I can open the Link Table Manager to update previously created links.

Any ideas?

I'm using MSAccess 2003 on a brand new machine.

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I Need help,

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A few strange rhings happen. It only involves customers with over (approx.) 140 work orders (there is a one to many with customer to work order). All other customers seem to be immune to this.

Also, if you go to the tables directly from a access database window, you can still add/edit or delete records, but in the form view, it gives you an error.

I have tried several things including changing code (the orgional code was set dbs= currentDB and dbs.execute("INSERT.......)

I have found similiar posting but no real direct causes. does anyone have any ideas on how to resolve this?

Thanks

Frank

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Jun 8, 2007

Hi All,

Although familiar with CR, SQL and other such things. I have never had cause to use Access all that much.... Until Now!

My problem is easiest explained by my requirements....

I have a db table called Source. The data for this Table is populated by a form called Technical. Technical containes a series of fields (SO No, SO Line No, WO No etc etc). Some of these fields are lookup fields linked directly to the SO_Header Table in our main ERP software via and ODBC connection. The result is the SO No field is populated with a list of Sales Order No's as they exist within the ERP software. Within the Technical Form I have also the Customer Name.

This is where the problems begin. Within the ERP software we have two tables which I need to use: SO_Header and Customer. The SO_Header contains all the Sales Order info and the Customer table contains all the customer info. What I need to do is populate the customer name field in by db with the relevant customer based on the SO No chossen. However the Customer Name does not exist in the SO_Header table. Instead both the SO_Header table and the Customer tables contain a field called Cust_Code.

Now if I wanted to link these in Crystal Reports I would link from the SO_Header table to the Customer table using the Cust_code field. This would give me the corresponding Customer name based on the Sales Order No.

How can I get the correct Customer Name to appear automatically in my Access form based on a SO No chossen by the user?

I would realy appreciate any help on this! If you need me to clarify anything please ask.

Thanks in advance!

RobV

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I am currently using Microsoft Access 2010 32bit, and have one database acting as parent, with a second linked database as a client for people to work with, and the parent database has tables imported from Sage V21 via ODBC. I have used the following code as specified in other examples as follows:

Code:
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However, recently we have moved all our databases to a new location.

K:databasedb1.mdb is now residing in O:masterdatabase
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Oct 5, 2007

Hello, this is my first post (anywhere ever)!:eek:

While I have lots of Access programming experience over the years I have broken new ground this week and am in unchartered territory and need help please!

In the organization I am working for (as Procurement Manger), we use AMMS (by Microwest) for work order generation and inventory management, etc. I have been able to import into Access the tables of interest from this SQL-based package. The problem is that I need to share the tables (via nice front end forms/queries) with about 20-30 people in the field.

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2) the ODBC tables are rather large - one is over 38,000 records and it takes several minutes to run the delete/append queries.:mad:

3) When I created the Master db it was some 83MB. After running the delete/append queries it is some 179MB and appears to increase in size every time I run the delete/append code. When I run "compact db" it stops running after a short time. Does nothing but create a new file (db1.mdb) of the same huge size as the Master.:confused:

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