Do Links To External Tables Ever Get Dropped?
May 22, 2007
Once external tables have been linked to a database can the links ever get dropped accidentally.
ie should I test for missing links and recreate them programatically or assume that it will never happen?
It is easy enough to identify links which are present but any code which loops through the tabledefs will only identify links which are present.
I think the best approach, if this is necessary, would be to count the number of external links, compare the answer to what it should be, and refresh all the links if theree is a difference.
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Sep 19, 2013
I have a PATIENT TABLE with PAT_ID Autonumber / Primary Key.I want to set up an Invoice and a Receipt. I know the fields I need. how many tables I should create and how they should be linked PROPERLY.
INVOICE TABLE would contain (field names and data type):
Invoice_ID Autonumber / Primary Key
PAT_ID Number (as the link to the Patient Table)
Invoice_Date Date/Time
Invoice_ Contact Text
Invoice_SentDate Date/Time
Invoice_Paid Date/Time
Invoice_Comments Memo (not to be printed on invoice just info for me)
[code]...
Note: The rest of the fields needed on the receipt are in the Patient table (i.e. services rendered to). For the receipt, the description of the service(s) will be limited to a standard text that will be set in a label on the report.
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Jun 19, 2015
I created a table which primary key is unique number (6 in total), however if I enter for example 000005, it drops the zeros in front.
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Mar 5, 2008
I have recently learned how to link photos to a database using a form and a table listing the path to each photo. Is there anyway to format the records in the table so that when you click on the path the photo shows up?
I have browsed around past threads and have not found and answer.
Thanks
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Feb 20, 2008
I have a query where I am trying to set the where criteria expression using an unlinked table. The unlinked table name is INV DATES. The criteria field is [THE_DATE]. I cannot really link the fields for the two tables since I am using an expression. This design works, but it goes really slow.
Any ideas?
SELECT DISTINCT DSSAPP_FULL_WIP_PROD_STATS.LOT_NUMBER, DSSAPP_FULL_WIP_PROD_STATS.OPERATION, DSSAPP_FULL_WIP_PROD_STATS.OPERATION_START_TIME, DSSAPP_FULL_WIP_PROD_STATS.OPERATION_END_TIME, DSSAPP_FULL_WIP_PROD_STATS.CURRENT_QUANTITY AS QUANTITY, DSSAPP_FULL_WIP_PROD_STATS.CURRENT_QUANTITY_TIME AS [DATE], DSSAPP_FULL_WIP_PROD_STATS.LOT_HOLD_FLAG, DSSAPP_FULL_WIP_PROD_STATS.ACTIVE_FLAG, [INV DATES].THE_DATE, [INV DATES].WEEK_NUMBER_IN_YEAR, [INV DATES].MONTH_NUMBER_IN_YEAR INTO ROXES
FROM DSSAPP_FULL_WIP_PROD_STATS, [INV DATES]
WHERE (((DSSAPP_FULL_WIP_PROD_STATS.LOT_NUMBER) Like "R1*" Or (DSSAPP_FULL_WIP_PROD_STATS.LOT_NUMBER) Like "R2*" Or (DSSAPP_FULL_WIP_PROD_STATS.LOT_NUMBER) Like "R4*" Or (DSSAPP_FULL_WIP_PROD_STATS.LOT_NUMBER) Like "R5*" Or (DSSAPP_FULL_WIP_PROD_STATS.LOT_NUMBER) Like "RR" Or (DSSAPP_FULL_WIP_PROD_STATS.LOT_NUMBER) Like "B0*" Or (DSSAPP_FULL_WIP_PROD_STATS.LOT_NUMBER) Like "B1*" Or (DSSAPP_FULL_WIP_PROD_STATS.LOT_NUMBER) Like "B2*" Or (DSSAPP_FULL_WIP_PROD_STATS.LOT_NUMBER) Like "B5*" Or (DSSAPP_FULL_WIP_PROD_STATS.LOT_NUMBER) Like "B4*") AND ((DSSAPP_FULL_WIP_PROD_STATS.OPERATION_START_TIME)<=[INV DATES]![THE_DATE]) AND ((DSSAPP_FULL_WIP_PROD_STATS.OPERATION_END_TIME)>[INV DATES]![THE_DATE] Or (DSSAPP_FULL_WIP_PROD_STATS.OPERATION_END_TIME) Is Null) AND ((DSSAPP_FULL_WIP_PROD_STATS.CURRENT_QUANTITY_TIME )>=Now()-600) AND ((DSSAPP_FULL_WIP_PROD_STATS.FACILITY)="STPPRD" Or (DSSAPP_FULL_WIP_PROD_STATS.FACILITY)="EPIPRD"))
ORDER BY DSSAPP_FULL_WIP_PROD_STATS.OPERATION;
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Dec 2, 2004
Hi all.
As i'm still what can be called a "newbie" in MS Access, maybe one of you wizards
can help me out with this.
I'm having a product table in ms access, containing a few columns. The regular stuff (type, ID, ..).
It also contains a column i want to store the links to their documentation to, called "download'.
The fields of that table are loaded into a data access page.
Now the data access page is loaded into the frame of an HTML page. Everything works well, but when it
comes to the download-field, i get no link, but a piece of code instead.
Now these links are relative links (not absolute ones). What i'm searching for (for quiete some time now), is a way to make the links show as normal links.
Is there anyone who could give me a hint or who can help me out with this?
Thank you very much in advance,
Kind regards
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May 20, 2005
I was recently doing a little Spring Cleaning in my database and deleting old tables and queries that were no longer used or had been for experimental purposes. Unfortunately, I unknowingly deleted a query that was being used by a report I still needed and it took me several hours to find and correct the problem.
Not wanting to repeat this mistake, I began searching for a way to display my reports, queries, and tables and all the objects each is linked to. I thought it would be nice, for instance, to have a hard copy list of all my queries that showed where they are derived from and what other objects reference them. Is there a way to do this?
I've tried using the "Relationships" button and working with the Documenter, but I haven't found what I'm looking for. I have also tried a Google search, but, admittedly, I may not be using the proper terminology to get good results.
Thanks for your time.
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Jan 6, 2006
Hi,
I'm buliding an access system in which the forms and tables stored in seperate databases as such:
forms: \serverdirmyDatabase.mdb
tables: \serverdirdatamyTables.mdb
myDatabase has a load of linked tables from myTables. Problem; my network drives are mapped differently from the users, so the links do not work for me.
So - does anyone know how I can set up a relative link, so myDatabase looks for datamyTables? i.e. it looks from the source directory rather than checking the whole path back to the root?
Hope this is making sense . . .
Dave
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Mar 14, 2008
I have heaps of Linked Tables and the main data bases are in My Documents.
My Documents is also the shared name but I need to change it to MyDocuments as the space fouls up some other stuff.
I have a feeling I will need to delete all the linked tables and do it again.:D
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Sep 24, 2004
I have an application in MS Access that contains some forms and reports. I want to be able to show pictures on the forms. So I am saving images on file system and storing links to those images in MS Access tables so that they can be retrieved and be shown on the forms. Can someone throw light on the effects of this approach on performance of the application (especially vis-a-vis the approach of storing images in the Access tables as OLE objects)?
Would appreciate if responses can be directed to my email-id Satya_Nadiminti@infosys.com
Thanks,
Satya
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Feb 13, 2015
I have a club member registration application consisting of a program database and a data database. They reside in the same directory. There is an autoexec macro which runs at the beginning. This macro has to find the DATAdb and make sure that the required tables are linked (Not all tables). If it cannot find the DATAdb and then has to make a call to the user to use a different procedure.
Now to find the DATAdb I have used the following code that works. The function GetPathAndName parses the string db.name and outputs the path and name of the PROGdb. Up to here no problems.
Code:
GetPathAndName db.Name, FrontPath, dName
Then I use the following code to get the fullpath of the last database used and thereby find the path and name of the last DATAdb. The path of PROGdb is used in place of the existing path of DATAdb to check whether the file exists.
Code:
Dim rs As Recordset, cPath As String, cName As String
Set rs = CurrentDb.OpenRecordset("SELECT Database, Type " & _
"FROM MSysObjects " & _
"WHERE ((MsysObjects.Type) = 6) AND ((MsysObjects.Name) = 'MembersTbl') " & _
"ORDER BY MsysObjects.DateUpdate DESC;")
[Code] .....
As the final step I use the table definitions to refresh links that already exist and connect tables that are not linked The code is below. But I can not get it to work. It links 7 tables instead of 16 and when tested in different folder says invalid operation and so on. There is fundamental error some place but I could not figure it out.
Code:
On Error GoTo Error_Linking
Debug.Print "TableDefs.Count="; db.TableDefs.Count
For I = 0 To db.TableDefs.Count - 1
Debug.Print "TableDefs("; I; ").Connect="; db.TableDefs(I).Connect
Debug.Print "TableDefs("; I; ").Name="; db.TableDefs(I).Name
[Code] .....
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Oct 13, 2006
I searched and couldn't find anything on this specific issue.
I'm on the verge of designing a pretty big database and I've run into what may become a bit of a problem. There will probably be several backends in different locations. Should another backend ever be created or if the location for one changes, the user can use a form to refresh the links to the tables on that specific database.
The way I've done this so far is by having a piece of code that checks the tables for a connection string. If the table has a connection string, its a linked table, so the link gets deleted and replaced with the new link. Well this will no long work since there will be several backends and only 1 of them may need its tables relinked and using that code will delete all the table links, including the good ones.
Is there a way to make 'DoCmd.TransferDatabase' overwrite table names instead of giving the duplicate tables a number suffix? I think that doing this would be easier than retrieving the table names from the new backend and comparing them with the linked table names in the frontend so the old links could then be deleted.
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Oct 29, 2012
I found 2 examples of code to refresh my attached table link to sharepoint lists.
I have a scheduled task open my Access 2010 db and an autoexec macro runs and closes the db.
My problem is my tables disconnect from sharepoint 2010 and the update fails.
I added the code I found to a module and added a line in my macro to run the code. Now I cannot get the code to work.
Am I at least on the right track? I just want to know before I spend many hours getting this code to work.
These are the two locations of code I found.
[URL]
I think part of my problem is that I have a regular table that I add a txt file to that is not linked to sharepoint so I need to exclude it from the code.
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Aug 25, 2006
Is there a way to just select like through a find dialog box, the location of a databases backend location and just automatically create all the links for the link tables...
The reason Im asking, is my boss wants the database to be on his laptop in the event that the network is down, and also so that he can work away from the company's location but I was showing him the implications of having it installed locally on his machine should his laptop go down....
So now I'm wondering if i could
1. do some automation that allows him to just choose the location of the databases backend that he would be working from, be it on the network or on his machine
and
2. using both backends to update or overwrite each other depending on which he was working from or did updates to..
Really would love all the help and input I can get on this... Im willing to work on developing a sample for this if nothing is exactly already out there so that it can be reposted cause i think this would be very useful to everyone's database applications.
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Sep 7, 2012
I have a client who needs a Database created in Access for him. he would like to regularly auto-populate this Access DB from an Excel file - like twice a week.In addition, he wants me to create Forms, Queries, reports and Macros for him in the Access, which will have 2 Tables from Excel files and about 3 Tables created in Access.I figured that I could do that if I gave him a link to the Tables he needed from the Excel file(s). But how do I work remotely for him- the path to those files is on his computer. I can load them to mine, but then he can't open the files.How can I create Forms etc. in an Access DB which uses links from source files as its Tables?
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Sep 10, 2007
Dear Forum,
please let me ask a second question. I have two tables tbX and tbY, which both contain a column called "LastName". What I am looking for is a query or macro, which compares the columns "LastName" of tbX and tbY and then tells me, which items are contained in tbX but not in tbY.
To make it more complicated I have two cases. In the first case both tables are located in the same database. However, in the second case one of the two tables is not part of my database but located in a different Access-file in a different directory.
I would be happy for any suggestions.
Thank you.
Diana
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Jul 7, 2005
Can you import from a .txt file on Notepad into an Access table or will it have to go via an excel spreadsheet to begin with?
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Dec 24, 2012
I have an Access db in a 3 person multi-user environment on a Windows network.
There is a "PRODUCTION" db and a "DEVELOPMENT" db.
Let's call them PROD and DEV.
PROD has the most current data, shipping records, item master, customer data, sales, etc. - but not the most current structure.
DEV has the most current struture - all the front end stuff - forms, functions, modules, etc. - but not the most current data.
The way I've handled this in the past (it seemed to work) was to take the PROD db and rename it to PRODX. Then take the DEV db and rename it PROD. Then open DEV (now called PROD) using the usual shortcut to PROD.
So now that opens fine, and I have to update all the tables from PRODX - and I mean ALL of them - since I don't really know what data has changed since the last update.If I try to delete records I get blocked by access because of all the related records (I don't have cascade delete set on every relationship). So I delete the whole table - ALL of them (this requires me to also delete the relationships). Then I IMPORT all the tables from PRODX (these have the current data). But now the relationships are all gone. It seemed at first that the relationships were back and intact - but when I last looked they were gone. So this is my problem.
HOW do I COMPLETELY empty ALL of the tables - or even delete them - and then restore them or repopulate them from an exact copy of the db but with current table data - and WITHOUT affecting the relationships?
Obviously any back end structural changes have to be handled differently. Usually by manually making the same change on the PROD db that I had in the DEV db - because deleting the table will cause the structural changes to be lost.
One last thing - I've been working this way on an un-split db, and now I'm in the process of splitting it - which SHOULD make updates much easier.
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Apr 23, 2013
Using access 2010. Trying to set up an import table from an external database.
Code:
DoCmd.TransferDatabase acImport, "Microsoft Access", "Y:DevTestFolder2013 01 Some Data Name", acTable, "tblName", "tblName"
I get an error 3024 could not find the file Y"DevTestFolder2013....
The database I am importing from is a 2003 .mdb. I tried the brackets because the file has spaces in it but still get the same error.
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Mar 16, 2015
I was wondering if it was possible to link random external tables to the Active Database through VBA. I would like to run the code that would open up a dialog box that would let the user select the database as well as the tables within that database that the user can select to link to. I am able to select the database and but not able to select the actual tables. The tables will be random so I can't make a constant statement for a specific database.
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Oct 7, 2013
Running Office 365 (Access 2013). Recent problem occurrence. When I do an 'External Data' command, either from another Access database or an Excel file, the import completes, but I don't see the new table immediately in the navigator section. If I import from another Access database, the new imported tables appear as '~TMPCLP....' tables. If it's from an Excel workbook, the new table doesn't appear at all. It's only after I exit the database and reopen it do I see the new tables correctly named.
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Sep 15, 2014
I'm currently using the following VBA to export all tables within my DB to Excel on separate tabs:
Dim td As DAO.TableDef, db As DAO.Database
Dim out_file As String
out_file = CurrentProject.Path & "" & "Backup.xls"
Set db = CurrentDb()
For Each td In db.TableDefs
If Left(td.Name, 4) = "MSys" Then
'We do not need MSys tables in excel file
Else
DoCmd.TransferSpreadsheet acExport, acSpreadsheetTypeExcel9, _
td.Name, out_file, True, Replace(td.Name, "dbo_", "") 'We do not need dbo prefix in sheetnames
End If
Next
But upon exporting I get the following error:
"Run-time error 3274' External table is not in expected format"
It then hightlights the following line:
DoCmd.TransferSpreadsheet acExport, acSpreadsheetTypeExcel9, _
td.Name, out_file, True, Replace(td.Name, "dbo_", "")
If i navigate to the directory i can see that it has exported it to excel(attempted), but half of the tables(tabs) are missing.
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Mar 18, 2008
sorry if thi9s is the wrong place but I thought I would try somewhere.
I would like to create links to table trough an odbc link.
whta I have is an estimation programme that creates 4 tables in a directory/folder each time you create a new estimate I have an odbc link that points to the given folder where the tables are being created. What I would like to do is to search this folder and link specific tables to my database which is a contract control programme. the tabels are given unique name for each estimate example names are: 0001_assembly, 0001_data, 0001_increment, 0001_system
so to sum up is it possible to create a lnk to these tables on the fly. any one got any ideas and possible codes samples for doing this.
Thanks
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Aug 22, 2006
Hi all,
I've got two vast tables of data which I need to link, however the field unique to each was, at it's source, a typed field, and as such both have errors, typos, formatting problems, known deviations etc.
An example would be something like this:
Table1: SFOC0912JB3
Table2: F0CO9I2JB3
(These are harware serial numbers for what it's worth). I could do with creating a link between the two tables which would return a true based on a number of possibilities, such as:
Match if:
- String matches with prepended 'S', 'C' and/or
- String matches with substituted 'I' and '1' in any or all positions and/or
- String matches with substituted 'O' and '0' and/or
etc.
I think Levenshtein had the right answer from what I've been reading, but I haven't yet found an implementation for access (freely) available.
Any ideas?
Thanks,
Alex
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Feb 21, 2005
i have constructed a switchboard/main menu and have set up buttons which link to forms. i have also made a 'return to main menu' button which does as it says, the only problem is that after going back to the main menu both forms are now open...any ideas on how to stop this problem
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Dec 20, 2005
Hi,
I would like to set up a form in Access that accepts the input of an Excel spreadsheet file (browse for file) and then creates a pivot table on one of the sheets, and appends that data to an Access database table..
can you give me some ideas on how i should approach the problem?
Many thanks :)
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