Access Database Migration To Oracle
May 10, 2005
Hi, I have a question regarding improving the performance of an Access front-end linking to Oracle tables.
Basically what I have done so far is migrate around 35 or so tables into an Oracle 9i database. After linking the tables in Access and prototyping some of the existing forms/reports/queries in Access, I noticed that the speed performance of everything was noticeably slower. Any suggestions as to how I can resolve this issue? For read online queries and reports, I understand that I can use a pass-through query to speed things up. However, all the forms need to allow for data entry and based on my understanding, the pass-through query solution would NOT work for this.
Any suggestions? Any help would be appreciated.
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Oct 26, 2013
i'm running a module from an access db. how do i import a table from oracle into a closed access db, not the one where the code is running from?
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Jan 21, 2008
I have a database in MYSQL and the client wants to move it back to MS-Access. I need a tool that can lift the entire structure and DATA and migrate it.
Does anyone know of a good tool to do this ?
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Mar 5, 2008
hi all,
I'm trying to convert access 97 database running on XP to access 2000 running on Vista..
Can anyone guide me to some suitable website where I can learn of the problems that will arise together with their the solutions.
Regards
Eddie
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May 27, 2013
I need to create Access tables for migration.
One user can have multiple laptops.
Is this the best way to create the tables as shown below. (PK - primary key & FK - foreign key)
Table 1: User ID(PK), User name, Email, Contact, Comments
Table 2: Laptop ID (PK), User ID (FK), Location, Desk, Make, Migration Date, Migration Status
Can I create a query to join these two tables together so I can use the table view to enter the details ?
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Nov 23, 2006
Microsoft is offering a tool that "Automates database migration from Access to SQL Server 2005."
The tool is downloadable from here (http://www.microsoft.com/downloads/details.aspx?familyid=d842f8b4-c914-4ac7-b2f3-d25fff4e24fb&displaylang=en).
If this is what it sounds like, then it can be a very valuable tool. Has anyone used it? If so, what has your experience been like?
SHADOW
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Nov 2, 2007
Good day dear experts,
I have a global question about the access migration to MSSQL serv , a lot of solution in google, but no clear anwers...
well just want to see your proposions: i'm now splitting between two ways,
to use ODBC linked table connection and MDB file as front. or use ADP file as a frontend and DAO as a SQL technology.
I have a new access database system without any data at the moment for real estate bussiness, about 15 tables, 4 forms, biggest one is abot 30 fields.
So it not seems to be a very big overload on queries. The problem is i allready developed the system on the access, and it seems to work fine, but when I tryed to move it on SQL throught ADP project, You know, i was kind of confused. :eek: and the idea of rewriting all the code i've made dissapoint me deeply ...
So, can't wait for your proposes, about this issue...
Is it ODBC or is it DAO ???
If it will be DAO afterall, may be you can give a link to the clear tutorial...
"How to modify code for ADP files."
beacaose i realy dont have much time to read a lot of prologs about the technologies and so on, i need to deal with this issue till next week !!! :(
Thnks a lot in advance...
Mike
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Sep 29, 2005
In the company whe are migrating from NT4 with Access 97 to a XP And office 2003 enviroment.
This couses some serrius Isues.
one of them richt no is a Multi usser DB. 2 systems of XP and only one of them is able to run the DB. both instalations are the same. ... the DB is tested on more XP systems. but so als it seems only one person is able to run the DB at a time..
But a few can't run the DB at al.
the Software on all systems is the Same Image so there is no diference between OS and Office.
Who already migrated from 97 to 2003 and had isues with migrating..
like these.
.. on the department whe have 15 + diferent DB's in 97. and the Main developers of these DB's ore the IT department is not going to fix this.
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Jun 12, 2006
First post, so I hope I'm following the post-etiquette!
Anyway, I've just been employed by a company who still uses access 2.0 and lotus smartsuite.
Basically I'm gonna have to migrate a few of their backbone databases to access 2000+
I've managed to find the old Microsoft access 2.0 book in the company amazingly, which is a help.
I was just wondering if anyone knows any good sites for migration, or any particular problems that may be encountered. I'm just doing some background work at the moment, this won't be happening for a few weeks (hopefully!)
Any help would be greatly appreciated.
I'll just take this opportunity to say that I've found the site very useful in the last few weeks and hope I can contribute in the future when I break out of newbie status!
-Spud.
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Jan 10, 2013
we have Oracle 11g as main database and for viewing purpose, we have created an mdb (Access 2007) using Link tables via ODBC connection (system DSN).While querying, count queries are working fine with accurate record counts but, all select queries are not working fine. It filters and displays with wrong records. There is no issue in query building.how to get correct records through odbc connection to Oracle database.
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Jun 9, 2006
I donot have much information at this time, but siiting in an Oracle fusion meeting, the Oracle reps mentioned they have a product to compete with MSAccess. Of course it runs on Oracle instead. They said Oracle had to come with a competing product because to many Access databases turn into Sql Server databases.
That is about all the info. I have right now on this. Thought it an interesting subject however.
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Apr 20, 2006
Hi guys,
I'm just looking for some general views and opinions here and would love to know what people think; advantages/ disadvantages etc.
We have a system of spreadsheets traking various ongoing projects in our organisation which are sitting on 6 different regional servers. This poses a number of problems as you can imagine - no way of collating the data or generating reports centrally. Updates/bug fixes cannot be carried out because it would require chaning each workbook individually and so on and so on.
I am trying to make an argument to create a new Oracle based database or similar which will be held on a central server and accessed through the company's intranet.
What I'm trying to do is compile a list of the possible reasons to do this or not as the case may be. Opinions or arguments for and against would be most welcome.
Thanks
Liam
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Jun 20, 2006
Hello Guy,
We use an Oracle base software called Trapeze and Microsoft Access sometime used as a front end to access the Trapeze oracle tables.
Due to the possible dangers of allowing the users Access, Is there a way to block the users from changing the oracle tables and only be able in MS Access to create reports and queries? Trapeze's security is antiquated and uses Oracle to validate accessibility. Since a user has to be created in Oracle, with update, delete, read, write, append rights, for Trapeze to work correctly, a user can connect directly to the Db through Access and make changes directly to the data, unless the ability to prevent them from modifying the tables and only create reports and queries that they can save.
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Jul 13, 2005
Dear All,
I'm trying to link to Oracle through ODBC...everyhting is set up, and I can connect and I can also see the tables..The problem is...there are just toooo many tables in the link window!!!....
Does anybody know how to find the right table you want faster??? Or how to limit the tables that are retrieved from Oracle to just the ones I desire?
I even set up the correct Schemas to just view the tables I want...but It won't work when linking it through ODBC!..All the tables appear over and over again... And the list is just tooo long.
PLEASE HELP! I'm getting crazyyyyy :confused:
Zurvy
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Jun 21, 2007
hi...
i have created a database link between oracle and msaccess....i am trying to access the msaccess table from sql(oracle)..
when i do a
select * from msacees_table@database_link
i am getting the desired result
but when i try to acces a specific column with in the msaccess table like
select msaccess_col1 from msacees_table@database_link
its says invalid column name....
any idea why its behaving like this ???
thanks...
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Jun 28, 2004
I was hired to write some reports in Access 2000 for a small company (max of 6 users at a time). The database was created by someone else and he decided that moving to Oracle was the answer to some of their issues (losing data due to record locking). The guy did not know Access at all so that DB is screwed up (another issue all together). I had no problem creating the reports and they ran fine on my home and work computer. When I imported the reports into the Access DB at this company they ran fine (but VERY slow). I then got a call 3 days later from them saying the reports wouldn’t run. The owner decided to upgrade to Access 2003 to see if that would help but that created another set of new error messages. When I try to run the report it gives two messages: "can not perform action/make changes in record primary key" and "record not found". These reports are based on simple select queries. Trying to run the reports freezes the application. I even tried to open the tables and it either freezes the app or takes about 15 minutes to open. These tables are linked to Oracle 8i. The newest OBDC drivers have been installed and the newest Oracle 8I edition has been installed. Since I can run the reports in Access I assume the issue is the link with Oracle. I have very little Oracle knowledge. From what I can tell the data is stored in Oracle and Access pulls the data via the links. Has anyone experienced this? Does anyone know how to fix the issue? Your help is very much appreciated!
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May 26, 2005
Hi,
I'd like to transfer access-queries to Oracle. If I export access-queries, Oracle recognize these as tables and not as dynamic queries? Any idea how to solve this or does anybody know a tool to create queris in Oracle?
Thank!
Tom
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Mar 22, 2007
I'm using the following tools/systems:
* Oracle 9i Enterprise Edition Release 9.2.0.5.0
* Microsoft Access 2002
* Access is running on a XP Professional desktop
What I'm doing at the moment is:
* Linking the Oracle tables in Access via ODBC
* Using Access to run develop & run queries against the linked Oracle tables
What I'm trying to figure out:
* What is the easiest way to export the query results to a local (on my machine) Access table?
Some of the queries return < 65000 rows, so I can export to excel & import the excel file back into access. Unfortunately this doesn't work for the bigger queries.
Suggestions?
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Apr 23, 2013
I have written a few solutions in Access (using access 2007). Now I going to create a few new ones for my company. We use Oracle for our main database and was wondering what would be the advantages and disadvantages of using Oracle as my backend while Access is my front end?
Also, should I create the queries in Access or in Oracle?
finally, is there anything I need to do differently?
[URL]
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Mar 10, 2014
I have linked ms access to orcale to run a query, the date in orcale is in this format 20140101, i have tried to convert the date in the query like that but it's not working. format(mydate,"yyyy/mm/dd".
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Nov 30, 2006
Is it possible in access to link to both oracle AND access tables in the same
access application?
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Dec 15, 2004
Hello to everybody,
I want to access Oracle 8.0 Data (meaning Oracle tables) with Access 2002. My problem is that I do not want to enter the username and password every time I connect to the Access db, as I want to create some queries in Access which I will export to Excel.
I do not think that this is something difficult but I can't seem to find any solution. Is there any proposal?
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Mar 24, 2006
Hello,
I'm making a MS Access frontend for some tables on the Oracle 8 database at work. The tables are linked ofcourse.
One table has an AUTONUMBER field on the Oracle and it seems to give me trouble to insert new records.
When I try to insert a new record (leave the autonumber field blank) I get the following error: "ODBC — insert on a linked table <table> failed. (Error 3155)" followed by the error "[Microsoft][ODBC Driver for Oracle][Oracle]ORA-01722: invalid number (#1722)".
When I look at the Oracle documentation I got this:
ORA-01722 invalid number
Cause: The attempted conversion of a character string to a number failed
because the character string was not a valid numeric literal. Only numeric fields or character fields containing numeric data may be used in arithmetic functions or expressions. Only numeric fields may be added to or subtracted from dates.
Action: Check the character strings in the function or expression. Check that
they contain only numbers, a sign, a decimal point, and the character "E" or "e" and retry the operation.
I checked the INSERT statement: "INSERT INTO AFM_HV_PROP_VALUE (HV_INST_ID, HV_PROPERTY_ID, TABLE_NAME, HV_PROPERTY_VALUE) VALUES (4, 'V_TESTJE', 'hv_inst', '123465')" and everything seems to be allright. The value that's causing the error is the "4" that gets in the "HV_INST_ID"-field.
Using TOAD to execute the SQL Statement, there is no problem at all.
When I look at the table design in MS Access I see that the Autonumber field is of the type "Double". That doesn't seem right to me...
Anyone some suggestions? I'm running out of courage :s
Greetings,
Niels R.
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Jan 13, 2007
We have a user that wants to pull data from multiple oracle tables into one access table. She will probably want to run this process daily. The tables will join easy enough, but I wasn't sure what the best way to go about doing this was.
I haven't used access very much. Again, this is a member of the user community and she is wanting to do this thru access.
Ideally, if it could be automated some way, or set up in some way where the user would not have to do much more than start the process (and not have to redo any "select" statements each time). I would assume some kind of combination of links and import (maybe using a macro?), but again I know very little about access.
Any guidance will be appreciated!
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Jul 5, 2007
Hi,
Can anybody help me ?
I've a case where ms access displays oracle's numeric field as text where msaccess is linked to oracle.The possible reason could be when we don't specify precision in declaring the filed in oracle table, default precision is 38 which ms access cannot hold. So, it(driver) converts this to text field.But this is with MSORCL32.dll(microsoft driver for oracle).Is there any other possible reason that will result this behavior?
The following are the configuration details:
1.Oracle 9i on Unix server.
2.MSAccess on Windows XP.
MSAccess holds linked data of Oracle server.
Thanks Inadvance.
Ramesh
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Mar 21, 2008
I've developed a working query to grab some information from my Oracle 9i database using SQL Developer. I have a tool in MS Access 2003 that I'm developing for other users so they can input some options through the GUI and query the same data that I do.
I'm trying to translate the query I developed in Oracle and have it work in Access. I have my ODBC connection set up so that Access can get to the same tables.
Here is my Oracle Query:
[QUERY]...
The error I'm receiving is: Run-time error '3296'
Join expression not support.
I believe the error has something to do with the "LEFT JOIN CPCF ... " but I can't seem to figure out how to fix it. The query will run in Access if I change that to an "INNER JOIN CPCF ...." but the result set is not what I need it to be. Any thoughts on how to fix this?
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