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How to move the result set pointer to required position?
The absolute() method of the ResultSet interface accepts an integer value representing the index of a row and moves the ResultSet pointer of the current ResultSet object to the specified position.
Assume we have a table named cricketers_data with 6 records as shown below:
+------------+------------+---------------+----------------+-------------+ | First_Name | Last_Name | Date_Of_Birth | Place_Of_Birth | Country | +------------+------------+---------------+----------------+-------------+ | Shikhar | Dhawan | 1981-12-05 | Delhi | India | | Jonathan | Trott | 1981-04-22 | CapeTown | SouthAfrica | | Lumara | Sangakkara | 1977-10-27 | Matale | Srilanka | | Virat | Kohli | 1987-04-30 | Delhi | India | | Rohit | Sharma | 1987-04-30 | Nagpur | India | | Ravindra | Jamnagar | 1988-12-06 | NULL | India | +------------+------------+---------------+----------------+-------------+
Following JDBC program establishes a connection with the database, retrieves the contents of the cricketers_data table into a ResultSet object and, moves the pointer to 3rd row and prints its contents:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class ResultSet_DeletingRow {
public static void main(String args[])throws Exception {
//Registering the Driver
DriverManager.registerDriver(new com.mysql.jdbc.Driver());
//Getting the connection
String mysqlUrl = "jdbc:mysql://localhost/mydatabase";
Connection con = DriverManager.getConnection(mysqlUrl, "root", "password");
System.out.println("Connection established......");
//Creating a Statement object
Statement stmt = con.createStatement();
//Query to retrieve the contents of the employee_data table
String query = "select * from cricketers_data";
//Executing the query
ResultSet rs = stmt.executeQuery(query);
//Moving ResultSet object to the required position
rs.absolute(3);
//Contents of the current row
System.out.println("First name: "+rs.getString(1));
System.out.println("Last name: "+rs.getString(2));
System.out.println("Date of birth: "+rs.getDate(3));
System.out.println("Place of birth: "+rs.getString(4));
System.out.println("Country: "+rs.getString(5));
}
}
Output
Connection established...... First name: Lumara Last name: Sangakkara Date of birth: 1977-10-27 Place of birth: Matale Country: Srilanka
Updated on: 2019-07-30T22:30:25+05:30
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