Solved

how to query MSysObjects (using Java)

Posted on 2003-12-08
4
1,410 Views
Last Modified: 2007-12-19
I have a Java app which reads .mdb files like so:

       Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        // we are using the direct connection method rather than the DNS method
        String database = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=";
        database+= filename.trim() + ";DriverID=22;READONLY=true}"; // add on to the end
        Connection con = DriverManager.getConnection( database ,"","");
        ResultSet rs;
        DatabaseMetaData metaData = con.getMetaData();
        // find out what tables and queries are in the database, and display their names
        rs = metaData.getTables(null,null,"%",null);

... which works great, however

I want to query against the system tables in the .mdb, specifically MSysObjects and MSysQueries to get som more structural info, but I get error:

java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver] Records can not be read; no read permission on 'MSysObjects'.

from the line:
Statement s = con.createStatement();
ResultSet rs_test = s.executeQuery("SELECT * FROM MSysObjects");

I am sure I solved this problem befor by tweaking a setting in Access, but I can't  remember how I did it. I have enabled viewing of the hidden and system tables, but this did not solve it. any help would be great!
0
Comment
Question by:kengoudsward
  • 3
4 Comments
 
LVL 10

Expert Comment

by:jobrienct
ID: 9902312
this thread appears to describe your problem quite well, albeit from a coldfusion perspective, the issue is securty settings i believe, read down past the original answer.

hth

John
0
 
LVL 10

Accepted Solution

by:
jobrienct earned 400 total points
ID: 9902314
0
 

Author Comment

by:kengoudsward
ID: 9909451
John, Thanks for the help
the thread you pointed me to said to...

Open up the database in Access, go to Tools, Options, View and select Hidden
and System objects.  

... which I had already done and wasn't the problem, but it was close. After a bit more playing around (and some sleep, and a new day)

I went to Tools, Security, User and Group Permissions
where I gave read permissions to all users and groups on the tables of interest; now it works!
0
 
LVL 10

Expert Comment

by:jobrienct
ID: 9909790
sorry, you read me wrong - i told you to scroll down passed the accepted answer a bit to where they talked about the security settings.

ahh well, next time I'll be more specific :)

thanks for the question,

John
0

Featured Post

The Eight Noble Truths of Backup and Recovery

How can IT departments tackle the challenges of a Big Data world? This white paper provides a roadmap to success and helps companies ensure that all their data is safe and secure, no matter if it resides on-premise with physical or virtual machines or in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I originally created this report in Crystal Reports 2008 where there is an option to underlay sections. I initially came across the problem in Access Reports where I was unable to run my border lines down through the entire page as I was using the P…
A simple tool to export all objects of two Access files as text and compare it with Meld, a free diff tool.
In Microsoft Access, learn different ways of passing a string value within a string argument. Also learn what a “Type Mis-match” error is about.
With Microsoft Access, learn how to specify relationships between tables and set various options on the relationship. Add the tables: Create the relationship: Decide if you’re going to set referential integrity: Decide if you want cascade upda…

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question