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How can we retrieve time from a table in JDBC?
The ResultSet interface provides a method named getTime() this method accepts an integer parameter representing the index of the column, (or, a String parameter representing the name of the column) from which you need to retrieve the time value. To retrieve time value from a table −
Register the driver class using the registerDriver() method of the DriverManager class. Pass the driver class name to it, as parameter.
Connect to the database using the getConnection() method of the DriverManager class. Passing URL (String), username (String), password (String) as parameters to it.
Create a Statement object using the createStatement() method of the Connection interface.
Execute the query using the executeQuery() method. Pass the select query to retrieve data (String) as a parameter to it.
From the obtained ResultSet object get the time value (along with other values) using the getTime() method of the ResultSet interface. Pass the name of the column (String) as a parameter to this method.
Example
Assume we have a table named dispatches in the database with the following details −
+--------------+------------------+------------------+----------------+ | Product_Name | Date_Of_Dispatch | Time_Of_Dispatch | Location | +--------------+------------------+------------------+----------------+ | KeyBoard | 2019-09-01 | 05:30:00 | Hyderabad | | Earphones | 2019-05-01 | 05:30:00 | Vishakhapatnam | | Mouse | 2019-03-01 | 05:29:59 | Vijayawada | +--------------+------------------+------------------+----------------+
Following is a JDBC example which retrieves the Date and String values from a table using getDate() and getString() methods of the ResultSet interface.
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class RetrievingTime {
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/sampleDB";
Connection con = DriverManager.getConnection(mysqlUrl, "root", "password");
System.out.println("Connection established......");
//Creating Statement object
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery("select * from Dispatches");
//Retrieving values
while(rs.next()) {
System.out.println("Product Name: "+rs.getString("Product_Name"));
System.out.println("Date Of Dispatch: "+rs.getDate("Date_Of_Dispatch"));
System.out.println("Date Of Dispatch: "+rs.getTime("Time_Of_Dispatch"));
System.out.println("Location: "+rs.getString("Location"));
System.out.println();
}
}
}Output
Connection established...... Product Name: KeyBoard Date Of Dispatch: 2019-09-01 Date Of Dispatch: 05:30:00 Location: Hyderabad Product Name: Earphones Date Of Dispatch: 2019-05-01 Date Of Dispatch: 05:30:00 Location: Vishakhapatnam Product Name: Mouse Date Of Dispatch: 2019-03-01 Date Of Dispatch: 05:29:59 Location: Vijayawada
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