ORA-00955

Question

Dear friends,
After creating a table in oracle 9i Data Base through Java (Eclipse). The Oracle refused to add records to the table. I tryed several time to delete tables directly by using SQL but the problem remained the same.
This is the code:
import java.sql.*;
public class DDL_QUERIES_2 {
     public static void main(String[] args)throws Exception {
          Statement stmt=null;
          Connection conn=null;
          String url="jdbc:oracle:thin:@SS-EC55E45BC763:1521:faiz";
          String driver="oracle.jdbc.driver.OracleDriver";
          String user="HR";
          String pwd="HR";
          Class.forName(driver);
          conn=DriverManager.getConnection(url,user,pwd);
          stmt=conn.createStatement();
          stmt.executeUpdate("INSERT INTO COFFEES" + "VALUES('French_Roast',49,8.99,0,0)");
          stmt.executeUpdate("INSERT INTO COFFEES" + "VALUES ('Espresso', 150, 9.99, 0, 0)");
          stmt.executeUpdate("INSERT INTO COFFEES" + "VALUES ('Colombian_Decaf', 101, 8.99, 0, 0)");
          stmt.executeUpdate("INSERT INTO COFFEES" + "VALUES ('French_Roast_Decaf', 49, 9.99, 0, 0)");
          stmt.close();
          conn.close();
and the exceptions:
xception in thread "main" java.sql.SQLException: ORA-00955: name is already used by an existing object
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:180)
     at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:208)
     at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:543)
     at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1451)
     at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol.java:862)
     at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:1839)
     at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:1764)
     at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2354)
     at oracle.jdbc.driver.OracleStatement.executeUpdate(OracleStatement.java:858)
     at DDL_QUERIES.main(DDL_QUERIES.java:28)

Answer 1

The COFFEES table leads me to believe that you're going through the Sun JDBC tutorial using Oracle. Very good.
Your SQL is bad.
I have no idea why you arbitrarily turn one String into two like this:
"INSERT INTO COFFEES" + "VALUES('French_Roast',49,8.99,0,0)"But if you look at it, you'll see that there's no space between COFFEES and VALUES, so this isn't valid SQL. You want it to end up like this:
"INSERT INTO COFFEES VALUES('French_Roast',49,8.99,0,0)"I'm assuming that COFFEES has exactly five columns, and that you're providing values for each of them in the proper order.
Some words to the wise: skip ahead and read about PreparedStatement.
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