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Thread: SQLServer Hell

  1. #1
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    Unhappy SQLServer Hell

    Hi, I'm new at java programming and wanted to do some first steps calling some data from a MS SQL server table (changing to mysql or any other db system is out of the question) and I'm using the jtds library, the connection is good, but can't get any data and I don't know why that is, please someone point me in the right direction

    Class.forName("net.sourceforge.jtds.jdbc.Driver");
    			Connection conn = DriverManager.getConnection("jdbc:jtds:sqlserver://192.168.0.1:1433/MyDB", "sa", "myPass");
    			Statement stt = conn.createStatement();
    			ResultSet rs = stt.executeQuery("select code from MyDB.dbo.table");
    			while (rs.next())
    			{
    				System.out.print(rs.getInt(0));
    			}
    			rs.close();
    			conn.close();

    I put a breakpoint in the while line but the rs seems to be empty, and it never goes inside the loop, the connection seems to be fine, i can connect from my macbook to the server and make queries, no problem there, I just can't explain what happens, I was wondering where can I see the error, I'm using Eclipse Helios.

    Thanks.


  2. #2
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    Default Re: SQLServer Hell

    You touched on this a bit, but I'll suggest you should verify the syntax in the SQL query (I presume you can copy and paste this query directly into some database interface and retrieve the appropriate information? - if the answer is yes I'd play with the syntax - for example remove the database name as this is redundant since you've already done so in your connection url). Also, make sure the username/password has the correct permission to the database.

  3. #3
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    Default Re: SQLServer Hell

    Hi, thanks for the tips, but I've done all that already, I have a program called RazorSQL which connects with the same driver, and I pasted this code from a query I already did on that program. As I stated, the connection works ok so user and password are ok too.

    Any tips on how can I see a trace of the error if any? maybe that could point me on what is wrong

  4. #4
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    Default Re: SQLServer Hell

    Hi, it seems I had problems with datatypes, I enclosed the code inside a try .. catch and caught the exception.

    Thank you.

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