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Heng Xing Tian Tai Lab of Xi'an City (abbr, HXTT)

HXTT DBF
Select For Update Problem
Nick Holcombe
2006-11-24 07:08:17.0
Hi,

I'm trying to perform a SELECT .. FOR UPDATE and get an SQLException saying my connection is in readonly mode - please can you tell me what I am doing wrong?

I've included the testcase code and Exception below.

Thanks
Nick.

My example testcase:
public class TestSelectForUpdate {

public static void main(String[] args) throws Exception {
Class.forName("com.hxtt.sql.dbf.DBFDriver");
String url = "jdbc:dbf:/c:\\data\\SHSUB";
Properties info = new Properties();
Connection conn = DriverManager.getConnection(url, info);

Statement stmt=conn.createStatement();
stmt.executeQuery("select * from demo where id = 4700 for update");


conn.close();
}
}

When I run the above code, I get the following Exception:
java.sql.SQLException: FOR UPDATE has been used but your connection is in readonly mode.
Re:Select For Update Problem
HXTT Support
2006-11-24 07:14:15.0
>Statement stmt=conn.createStatement();
According to JDBC API, the defaulte value is ResultSet.CONCUR_READ_ONLY, you should use:
conn.createStatementResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);


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