JAVA-JDBC Connecting the Oracle Database

 Packagecom.zse.oracle;ImportOracle.jdbc.*;ImportJava.sql.*;Importjavax.swing.text.html.HTMLDocument.HTMLReader.PreAction; Public classTest { Public Static voidMain (string[] args) {//Load Driver        Try{class.forname ("Oracle.jdbc.OracleDriver"); String URL= "Jdbc:oracle:thin:@127.0.0.1:1521:xe"; String User= "Root"; String Pass= "111"; //Obtaining an Oracle database connection through the drive managerConnection conn=drivermanager.getconnection (URL, user, pass); //Add a recordStatement st=conn.createstatement (); //Add Statement//String sql= "insert into student values (3, ' CCC ', ' 444 ')";//Design Execution Statements//Modifying statements//String sql= "update student set pass= ' 999 ' where sid=1"; //DELETE statement//String sql= "Delete from student where sid=1"; //st.execute (SQL);//EXECUTE Statement//Read all records//String sql= "select * from student where name= ' aaa ' and pass= ' 111 ' ORDER by Sid"; //returns a result from a query//Fuzzy Query//String sql= "SELECT COUNT (*) as num from student where name is like '%a% '"; //ResultSet rs = st.executequery (SQL); //Traverse result output record//While (Rs.next ())//determine if the next record exists, and if so, the cursor moves backward one cell//            {//                //System.out.println (rs.getstring ("Sid") + ";" +rs.getstring ("name") + ";" +rs.getstring ("pass"));//System.out.println (rs.getstring ("num"));//            }                        //precompilation: Record insertion//String sql= "insert into student values (?,?,?)";//preparedstatement ps=conn.preparestatement (SQL);//            //Input Parameters//ps.setint (1,5);//ps.setstring (2, "Eee");//ps.setstring (3, "888");//            //Ps.execute (); //precompilation: Modifying Records//String sql= "update student set pass=? where Name=?";//preparedstatement ps=conn.preparestatement (SQL); //ps.setstring (1, "666"); //ps.setstring (2, "AAA"); //Ps.execute (); //precompilation: Deleting Records//String sql= "Delete from student where sid=?";//preparedstatement ps=conn.preparestatement (SQL);//Ps.setint (1, 1);//Ps.execute (); //precompilation: FindingString sql= "SELECT * from student where name is like?"; PreparedStatement PS=conn.preparestatement (SQL); Ps.setstring (1, "%a%"); ResultSet RS=Ps.executequery (); //Output Results             while(Rs.next ()) {System.out.println (rs.getstring ("Sid") + ";" +rs.getstring ("name") + ";" +rs.getstring ("Pass")); } System.out.println ("Record added successfully"); //System.out.println ("database connection succeeded"); //System.out.println ("record added successfully");}Catch(Exception e) {//e.printstacktrace ();SYSTEM.OUT.PRINTLN ("database connection failed =" +e.getmessage ()); }    }}

JAVA-JDBC Connecting the Oracle Database