Oracle DB Query Generating Invalid Column Index error

Question

Dear All,
Apologies for a question on this rather basic error but I don't understand why i'm experiencing the behaviour described.
The piece of code below connects to a database, runs a query, then attempts to display the contents of the resultset. I understand from other posts on the topic that the query I am executing (INSERT INTO table VALUES (...)) as in the comments below needs to have autocommit disabled to allow me to access the resultset without the transaction closing.
  public void runQuery(String query) throws Exception {   Class.forName("oracle.jdbc.driver.OracleDriver"); Connection con = DriverManager.getConnection(database, username, password); con.setAutoCommit(false); Statement st = con.createStatement();         ResultSet rs = st.executeQuery (query);         // "select * from user_tables"         // "INSERT INTO BH VALUES ('','2.25','Dark Red','Samsonite','4987638762')"         while (rs.next()) {         System.out.print (rs.getString(1)); // Exception thrown here     }         con.commit(); st.close();   con.close();   }
I have removed try {} catch {} error handling for clarity.
I am receiving the invalid column index error from the indicated line, which clearly suggest column 1 doesn't exist, however if i run the same query in another tool, something like the following is returned:
Rows Affected
1
The query is being received by the database as the row ends up in the table intact, so I am clearly missing something about how to access the resultset correctly.
I am guessing that I am either misusing/misunderstanding the autocommit option or that the resultset is different to what I am expecting...
Can someone please shed a little light?
Many thanks!
George

Answer 1

Ok, I've done a little more digging, and i've come to the conclusion that an INSERT query doesn't return a resultset (or returns an empty one)
Could someone with a little more knowledge confirm this as I've had little luck finding an explicit yes or no from the web!
Many Thanks in advance...