Topic :: JDBC





JDBC Interview Questions
Questions Answers Views Company eMail

What are the measures to connect to the db using jdbc?

456

What are the basic exceptions in jdbc?

516

What are the advantages of using jdbc datasource?

486

What do you understand by jdbc driver and explain its types?

488

What is the full form of jdbc and what is its purpose?

532

What is a lock in jdbc?

537

Explain different types of locks in jdbc?

504

Why is orm preferred over jdbc?

154

What are the important steps for testing jdbc request?

308

What is jdbc template and how to use it in spring?

151

What is the difference between jdbc and hibernate?

165

What is transaction processing in jdbc?

567

What is savepoint in jdbc?

507

Which package is used for jdbc application?

506

Explain the difference between resultset and rowset in jdbc

527




Related Topics


Un-Answered Questions { JDBC }

The new features of the JDBC 2.0 API, will be supported for JDBC-ODBC Bridge?

1657


Does the JDBC-ODBC Bridge work with Microsoft J++?

1863


How MS-Access DB can be accessed over a network, using JDBC API?

2012


What are the common JDBC problems that you got and how do you solved them?

1952


How we can use the database checkpoint on a java web based application in which the database connectivity is done using JDBC->Pure Java type (in this type there is no need to create a DSN). At present in QTP we can fetch database values using checkpoint only through DSN. Is there any programming for this if we don't have DSN (ODBC)

1838






to update a batch in a table in jdbc which method of statement object is used

1655


What is JDBC Driver interface?How can you retrieve data from the ResultSet

1501


Which of the following is not an isolation level in the JDBC

1604


What is the difference between JDBC 1.0 and JDBC 2.0?

2693


What is the use of update query in jdbc adapter?

1776


Why did u use the flag field in jdbc table?

4243


What is the receiver str jdbc?

1581


What is the jdbc configurations ?

1577


Wt is the receiver str jdbc?

1510


plzzzzzzzzz xplain this code import java.awt.*; import java.util.Date; import java.awt.event.*; import java.awt.MenuItem.*; import java.sql.*; import sun.jdbc.odbc.*; import java.io.*; public class NewConnection extends Frame implements ActionListener { Label l1,l2,l3,l4,l5,l6,l7,l8,l9,l10,l11,l12,l13; Button exit,save,bnext,top,prev,botm,ad,edit; TextField txtSvNo,txtConsNo,txtSvDt,txtConsName,txtAddr1,txtPhNo,txtCy lQty,txtCylDep,txtRegDep,txtRegQty,adr2,adr3,tot,stnry,rmrk; Date date=new Date(); String ConsName; String Addr1; public static void main(String sr[]) { new NewConnection().setVisible(true); } public NewConnection() { super("New Connection"); Statement stmt; ResultSet rs; //PreparedStatement pst; Connection con; try { Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver"); con=DriverManager.getConnection("jdbc:odbc:Agency"); if (con!=null); System.out.println ("connected"); stmt =con.createStatement (); } catch(Exception e1) { System.out.println (e1); } setSize(1280,800); setBackground(Color.lightGray); setLayout(null); l1=new Label("SV NO"); l1.setBounds(260,60,90,30); l1.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l1.setAlignment(Label.CENTER); add(l1); l2=new Label("CONSMR NO"); l2.setBounds(30,60,90,30); l2.setFont(new Font("TimesRoman",Font.PLAIN,15)); l2.setAlignment(Label.CENTER); add(l2); l3=new Label("SV DATE"); l3.setBounds(520,60,90,30); l3.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l3.setAlignment(Label.CENTER); add(l3); l4=new Label("NAME"); l4.setBounds(30,150,45,30); l4.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l4.setAlignment(Label.CENTER); add(l4); l5=new Label("ADRS"); l5.setBounds(30,220,45,30); l5.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l5.setAlignment(Label.CENTER); add(l5); l6=new Label("PH NO"); l6.setBounds(500,150,45,30); l6.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l6.setAlignment(Label.CENTER); add(l6); l7=new Label("CYLDR"); l7.setBounds(30,390,55,30); l7.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l7.setAlignment(Label.CENTER); add(l7); l8=new Label("DEPOSIT"); l8.setBounds(320,390,65,30); l8.setFont(new Font("TimesRoman",Font.PLAIN,15)); l8.setAlignment(Label.CENTER); add(l8); l9=new Label("DEPOSIT"); l9.setBounds(320,440,65,30); l9.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l9.setAlignment(Label.CENTER); add(l9); l10=new Label("RGLTR"); l10.setBounds(30,440,55,30); l10.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l10.setAlignment(Label.CENTER); add(l10); l11=new Label("TOTAL"); l11.setBounds(320,480,55,30); l11.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l11.setAlignment(Label.CENTER); add(l11); l12=new Label("Cur.Statn.NO."); l12.setBounds(290,550,85,30); l12.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l12.setAlignment(Label.CENTER); add(l12); l13=new Label("REMARKS"); l13.setBounds (30,630,85,30); l13.setFont(new Font ("TimesRoman",Font.PLAIN,15)); l13.setAlignment (Label.CENTER); add(l13); txtSvNo=new TextField(); txtSvNo.setBounds(375,60,80,30); txtSvNo.setBackground(Color.white); add(txtSvNo); txtConsNo=new TextField(); txtConsNo.setBounds(130,60,80,30); txtConsNo.setBackground(Color.white); add(txtConsNo); txtSvDt=new TextField(); txtSvDt.setBounds(635,60,80,30); txtSvDt.setBackground(Color.white); add(txtSvDt); txtConsName=new TextField(); txtConsName.setBounds(100,150,200,30); txtConsName.setBackground(Color.white); add(txtConsName); txtAddr1=new TextField(); txtAddr1.setBounds(100,220,350,30); txtAddr1.setBackground(Color.white); add(txtAddr1); adr2=new TextField(); adr2.setBounds(100,250,350,30); adr2.setBackground(Color.white); add(adr2); adr3=new TextField(); adr3.setBounds(100,280,350,30); adr3.setBackground(Color.white); add(adr3); txtPhNo=new TextField(); txtPhNo.setBounds(570,150,150,30); txtPhNo.setBackground(Color.white); add(txtPhNo); txtCylQty=new TextField(); txtCylQty.setBounds(100,390,60,30); txtCylQty.setBackground(Color.white); add(txtCylQty); txtCylDep=new TextField(); txtCylDep.setBounds(410,390,60,30); txtCylDep.setBackground(Color.white); add(txtCylDep); txtRegDep=new TextField(); txtRegDep.setBounds(410,440,60,30); txtRegDep.setBackground(Color.white); add(txtRegDep); txtRegQty=new TextField(); txtRegQty.setBounds(100,440,60,30); txtRegQty.setBackground(Color.white); add(txtRegQty); tot=new TextField(); tot.setBounds(410,490,60,30); tot.setBackground(Color.white); add(tot); stnry=new TextField(); stnry.setBounds(410,550,60,30); stnry.setBackground(Color.white); add(stnry); rmrk=new TextField(); rmrk.setBounds(140,630,600,30); rmrk.setBackground(Color.white); add(rmrk); exit=new Button("EXIT"); exit.setBackground(Color.orange); exit.setBounds(760,700,40,40); exit.addActionListener(this); add(exit); save=new Button("SAVE"); save.setBackground(Color.orange); save.setBounds(715,700,40,40); save.addActionListener(this); add(save); bnext=new Button("NEXT"); bnext.setBackground(Color.orange); bnext.setBounds(90,700,40,40); bnext.addActionListener(this); add(bnext); top=new Button("TOP"); top.setBackground(Color.orange); top.setBounds(0,700,40,40); top.addActionListener(this); add(top); prev=new Button("PREV"); prev.setBackground(Color.orange); prev.setBounds(45,700,40,40); prev.addActionListener(this); add(prev); botm=new Button("BOTM"); botm.setBackground (Color.orange); botm.setBounds (135,700,40,40); botm.addActionListener (this); add(botm); ad=new Button("ADD"); ad.setBackground (Color.orange); ad.setBounds (300,700,40,40); ad.addActionListener (this); add(ad); edit=new Button("EDIT"); edit.setBackground (Color.orange); edit.setBounds (345,700,40,40); edit.addActionListener (this); add(edit); } public void actionPerformed(ActionEvent e) { if(e.getSource()==exit) { this.dispose(); System.exit(0); } if(e.getSource()==save) { try { Connection con=DriverManager.getConnection("jdbc:odbc:Agency"); PreparedStatement pst=con.prepareStatement("INSERT INTO NewCon values (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)"); pst.setInt (1,Integer.parseInt(txtConsNo.getText())); pst.setInt (2,Integer.parseInt(txtSvNo.getText())); pst.setString (3,txtSvDt.getText()); pst.setString (4,txtConsName.getText()); pst.setInt(5,Integer.parseInt (txtPhNo.getText())); pst.setString(6,txtAddr1.getText()); pst.setString(7,adr2.getText()); pst.setString(8,adr3.getText()); pst.setInt(9,Integer.parseInt (txtCylQty.getText())); pst.setInt(10,Integer.parseInt (txtCylDep.getText())); pst.setInt(11,Integer.parseInt (txtRegQty.getText())); pst.setInt(12,Integer.parseInt (txtRegDep.getText())); pst.setInt(13,Integer.parseInt (tot.getText())); pst.setInt(14,Integer.parseInt (stnry.getText())); pst.setString(15,rmrk.getText()); pst.executeUpdate (); con.close(); } catch(Exception e2) {System.out.println(e2);} } if(e.getSource()==ad) { int newcono=60000,newsvno=10000; System.out.println("entered if body"); try { System.out.println("entered the try:"); Connection con1=DriverManager.getConnection("jdbc:odbc:Agency"); Statement stmt1=con1.createStatement(); ResultSet rs1=stmt1.executeQuery("SELECT Cons_No,Sv_No FROM NewCon "); while(rs1.next()) { //System.out.println(rs1.getInt("Cons_No")); txtConsNo.setText(""+rs1.getInt(1)); txtSvNo.setText(""+rs1.getInt(2)); //newcono=rs1.getInt("Cons_No"); } //rs1.last(); newcono=Integer.parseInt(txtConsNo.getText ()); newsvno=Integer.parseInt(txtSvNo.getText ()); //newcono=rs1.getInt("Cons_No"); System.out.println(newcono); newcono=newcono+1; newsvno=newsvno+1; txtConsNo.setText (""+newcono); txtSvNo.setText(""+newsvno); txtSvDt.setText(""+ date); txtConsName.setText(""); txtAddr1.setText(""); txtPhNo.setText(""); txtCylQty.setText(""); txtCylDep.setText(""); txtRegDep.setText(""); txtRegQty.setText(""); adr2.setText(""); adr3.setText(""); tot.setText(""); stnry.setText(""); rmrk.setText(""); con1.close(); } catch(Exception e4){System.out.println (e4);} } if(e.getSource()==bnext) { try{ Connection con2=DriverManager.getConnection ("jdbc:odbc:Agency"); Statement stmt2=con2.createStatement (); ResultSet rs2=stmt2.executeQuery("SELECT * FROM NewCon "); rs2.next(); { txtConsNo.setText(rs2.getInt(1)+""); txtSvNo.setText (rs2.getInt(2)+""); txtSvDt.setText (rs2.getString(3)+""); txtConsName.setText (rs2.getString(4)+""); txtPhNo.setText (rs2.getInt(5)+""); txtAddr1.setText(rs2.getString(6)+""); adr2.setText (rs2.getString("Address2")+""); adr3.setText (rs2.getString("Address3")+""); txtCylQty.setText (rs2.getInt(9)+""); txtCylDep.setText (rs2.getInt(10)+""); txtRegDep.setText (rs2.getInt(11)+""); txtRegQty.setText (rs2.getInt(12)+""); tot.setText(rs2.getInt (13)+""); stnry.setText(rs2.getInt(14) +""); rmrk.setText(rs2.getString (15)+""); } } catch(Exception e5){} } } }

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