Cursor Demo App
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This document contains code for a Java application that uses a cursor to retrieve employee data from an Oracle database based on a user-input initial character search string. The application connects to the database, calls a stored procedure that accepts the search string and returns a cursor of matching records, iterates through the cursor to retrieve each matching record, and displays the employee details.
![Cursor Demo App
package com.peeyush;
importjava.sql.CallableStatement;
importjava.sql.Connection;
importjava.sql.DriverManager;
importjava.sql.ResultSet;
importjava.util.Scanner;
importoracle.jdbc.*;
publicclassCursorDemo {
publicstaticvoidmain(String[] durga)throwsException{
//inputfromthe user
Scannersc=newScanner(System.in);
System.out.println("Entercharacters(firstlettersof empname):");
Stringinitchars=sc.next();
initchars=initchars+"%";
//registerthe driverandcreate connection
Class.forName("oracle.jdbc.driver.OracleDriver");
Connectioncon=
DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE","system","password");
//create CallableStatementobject
CallableStatementcs=con.prepareCall("{call fetch_all_EmpDetails(?,?)}");
//registeroutparameterswithjdbctypes(Oraclecorpsuppliedjdbctypes)
cs.registerOutParameter(2,OracleTypes.CURSOR);
//setvalue toIN params
cs.setString(1,initchars);](https://image.slidesharecdn.com/f50f7619-e4d2-4331-9d87-ef49587639bc-151228143745/85/Cursor-Demo-App-1-320.jpg)
Cursor Demo App
- 1. Cursor Demo App package com.peeyush; importjava.sql.CallableStatement; importjava.sql.Connection; importjava.sql.DriverManager; importjava.sql.ResultSet; importjava.util.Scanner; importoracle.jdbc.*; publicclassCursorDemo { publicstaticvoidmain(String[] durga)throwsException{ //inputfromthe user Scannersc=newScanner(System.in); System.out.println("Entercharacters(firstlettersof empname):"); Stringinitchars=sc.next(); initchars=initchars+"%"; //registerthe driverandcreate connection Class.forName("oracle.jdbc.driver.OracleDriver"); Connectioncon= DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE","system","password"); //create CallableStatementobject CallableStatementcs=con.prepareCall("{call fetch_all_EmpDetails(?,?)}"); //registeroutparameterswithjdbctypes(Oraclecorpsuppliedjdbctypes) cs.registerOutParameter(2,OracleTypes.CURSOR); //setvalue toIN params cs.setString(1,initchars);
- 2. //execute pl/sql procedure cs.execute(); //gatherresultsfromoutparams ResultSetrs=(ResultSet)cs.getObject(2); //displaythe result while(rs.next()){ System.out.println(rs.getInt(1)+" "+rs.getString(2)+" "+rs.getInt(3)+" "+rs.getInt(4)); } //close jdbcobj connection rs.close(); cs.close(); con.close(); } }