Converting ODBC Tables To Access Tables
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.
I don't know much about ODBC but the administrator of AMMS was kind enough to give me access to the AMMS database tables via ODBC and I, personally have access to read the table data but none of the other people in the field can access these tables due to security rights.
So, what I have done is I created MS Access tables for each of the 4 AMMS tables of interest and I run code that runs delete and append queries on each table. I then have a separate public db that the field people access with all the queries and forms but only links to the Master db containing the 4 Access tables derived from the ODBC tables. This works ok but there are issues:
1) if any field people are on the Public db, the code to import the ODBC table data loops and does not complete the delete/append cycle on one or more of the tables. I can only refresh the table data when nobody is connected to the db - impractical.:(
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:
I suspect the most graceful solution would be to give each user rights to the ODBC tables from AMMS in Access. In this case, I wouldn't have to run delete/append queries and the data would always be in relative real time subject to the refresh timer. Unfortunately, due to AMMS licensing restrictions, this is not doable.
I have tried to search the internet for guidance but no luck. This forum appears to be an excellent opportunity to get expert advice on this particular issue. I thank you for your thoughts and guidance.
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Apr 30, 2015
How to Update ODBC linked tables on ms access?
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Nov 28, 2006
Hi,
I want to import into an MDB table a csv file.
I'm trying to use the bulk copy table.
my function is:
SQL = "SELECT * INTO [my_table] FROM [ODBC;Driver=Micrsoft text driver (*.txt; *csv) ;Dbq=c:\;Extensions=asc,csv,tab,txt;].table.csv"
db.OpenEx( "Driver=Microsoft Access Driver .mdb);DBQ=c:\access.mdb;", CDatabase::noOdbcDialog );
db.ExecuteSQL( SQL );
when i run this function i get an error : "You cannot use ODBC to import from, export to, or link an external Microsoft Jet or ISAM database table to your database"
when i try to import in the same way a dbf file (insted the csv file) with VFP it's working well.
what seems to be the problem? how can i fix it? or if some one know how can i import a large csv file into access DB in an efficient diffrent way?
thanks ishay
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Feb 27, 2007
I am trying to import certain data from a massive excel workbook into different Access tables but some of the worksheets contain simple formulas such as multiplication and division. I was wondering if it is possible to create these same formulas within Access? If it is possible then what are the necessary steps to create them? Thanks!
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Dec 18, 2012
I have been tasked with converting a spreadsheet to an access database. I work for a growing firm of Tree-Surgeons (no pun intended), who service a sizeable chunk of the power grid in the UK. At any time, we have up to 150 operatives in the field, cutting vegetation around power lines. Because of the obvious danger, the power company need advance warning of where any teams will be cutting on any given day.
Various team leaders call in each day and give their intended locations for the following day to an individual who's responsibility it is to log the info onto a central spreadsheet, an Excel workbook. Each workbook contains a worksheet for each day (Mon-Fri). Each worksheet contains the following fields:
1. Number (Unique Numerical Sequence for the individual)
2. Name
3. Phone Number
4. Working/Not Working
5. Type of Line (132kv, Extra High Voltage (EHV), High Voltage (HV), Low Voltage (LV))
6. Area (in this case a lookup of 8 geographical areas)
7. SubStn Number (a name of exact location followed by nn/nnn) (LV Only)
8. Circuit and Pole Numbers (a location followed by nn) (HV Only)
9. Locality (nearest village/town)
10. Grid Reference (nn/nnn/nnn)
11. Time On-Site
12. Time Off-Site
So far I have created a table (Called Contact) for the individuals:
ContactID (Key)
ContactTeamNumber
ContactFirstName
ContactSurname
ContactMobileNumber
ContactTitle
ContactStatus
[code]....
Team Members can move between teams, but Team Leaders remain largely static.I guess I should create a separate table for Team Leaders and Team Members, with a one-to-many relationship between them? All of the others could be around the network but would not be attached to a Team Leader, so I guess they can be in the same table as Team Leaders for the purposes of tracking their location.
Also, what is the alternative to using a look-up for some of the fields, for example the Area field? I was concerned about breaking one of the commandments, and cant see a reason why, but I await enlightenment!
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May 13, 2015
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:
DoCmd.TransferDatabase acImport, "ODBC Database", "ODBC;DSN=MyDNSMachineName;UID=MyUID;PWD=MyPassword;LANGUAGE=us_english;" & "DATABASE=pubs", acTable, "INVOICE", "INVOICE"
one of the tables has 10k records in it, it only transfers 77 records. After manually attempting an import via the ODBC wizard it finally lets me access all 10k records.I wish to have a single button click delete and import fresh tables without worrying if all the data is coming across.Also, when manually adding a table, I am usually asked by the wizard to specify an index, but with the code above, I am not offered that option and the tables come across with no index. I am led to believe that having tables that link to each other without an index is bad, so how do I ensure an index is created?
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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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Jan 7, 2008
I wonder if anyone had any suggestions regarding how to link 4 ODBC tables so the info in each of the 4 ODBC tables are in one table. The 4 ODBC tables are linked in from a mapping system. Each table has 80% the same fields with some minor differences. i dont know if a union query would be the best answer in this case as the field in each of the ODBC's tables do not exactly match. Some have 12 fields, some have 14 fields. Any help would be appreciated?
also this would be using Access 2003 if you would like to know. thanks
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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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Jan 17, 2006
Hello.
When linking a table via ODBC I usually get asked to pick a field that contains unique values.
This is all very well but I have hundreds of tables to link to across a slow network and would like to leave it running for a few hours.
With the current set up, this is not possible and I have to keep clicking on ok every few seconds/minutes.
Is there anyway to avoid this message so I can just leave it running until it finishes.
Regards.
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May 28, 2015
I have big problem with connection between ODBC and Access 2007. Everything is linked correctly but I have problem with separator in decimal field. In my country this separator is "," not ".". I found information about connection in MSysObjects.connect table that
Code:
...;BTD=F;BNF=F;BAM=IfAllSuccessful;NUM=NLS;DPM=F;MTS=T;...
I found somewhere that I need to change NUM value from NLS (default) to MS. Do you know how to edit this value? For example Access 2007 see value "123.8" (so it is in my country "123,8" ) like "1238"
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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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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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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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Aug 8, 2013
I Created a form and linked it to a ODBC table with no data. Set the Allow Additions property to Yes. It shows fine if there is data in the table but not when there is no data.
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Aug 3, 2007
Hi,
I have 2 linked tables, I would like to join these tables in access, however the first table's field is a memo and the second table is a number. I have tried to cint() the field in a query but I get an error message "Explicit conversion from datatype text to smallint is not allowed"
Any ideas how to get around this problem?
Thanks
Michael
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Jan 26, 2007
Hi Folks.
I'm having a problem with ODBC in Access.
For some unknown reason, when I click Get External Data > Link Tables
the ODBC Dialog box doesn't appear.
I have reinstalled Access and ODBC from the MDAC.
Still the ODBC dialog will not appear.
The funny thing is that existing links to my SQL Server database open fine and display the data.
Has anyone experienced this issue and what was the fix.
Thanks.
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Jul 14, 2015
I am working on an MSACCESS database that reads data from SQL Server through ODBC Connection.
I have multiple tables that I have linked in and created Queries that read the data and created Make Table query.
However, I am asking if there's a way to bring the data through a query that doesn't need the linked tables. Is there a way to bring different fields from different tables into one query without needing to import all the tables, since the tables have many fields that I don't need.
For example in MS Excel, I am able to do that, a query that will bring external data from SQL Server from different tables and only brings the fields that I need for my report.
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Jun 13, 2012
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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Sep 12, 2013
I have Linked a few ODBC Databases to my database in the Tables objects. How do I make them usable for queries or as record source for my form? I tried to create a query but the ODBC databases do not show up in the Table options.
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Jan 22, 2014
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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Jun 17, 2014
I am building a database using data imported from Excel workbooks. The dates in the workbooks are formatted as text in the YYYYMMDD format. Is there a way to convert this into date format during the import or after? I am pulling in a lot of different workbooks and trying to avoid having to reformat each individual workbook prior to importing them.
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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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Apr 24, 2013
I have a form that I need to turn into a table. The table will be updated each day with new information but I dont know what to do to keep the previous days info. I have attached the form ....
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Sep 3, 2014
how data is best structured in Access.I have a table of values (for instance: weight) and I need to be able to look up a weight based on the column header (age) and row header (height).How is this sort of data best structured and accessed in Access?
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Oct 9, 2012
We have an Access 2000 backend database resides in a network server drive while users connect to the backend tables with a mde file on their computers. All users have Access 2010 and the mde file was converted from the 2000 frontend with Access 2010.
The database have been running for a few weeks but recently users have been complaining about record lost on the backend table.We have also experienced one incident of data corruption where the main table could not be opened. After Compact & Repair, the table could be opened but a few records were showing xxxxx on all the fields and we have to delete and re-enter these records.Would they relate to using 2010 mde converted from 2000 frontend when the backend is still in 2000? I am a little nervous about converting both the frontend and backend to 2010 since I have heard various issues on the new version.
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