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How to select or, shift to another database in MySQL using a JDBC API?
In general, You can change the current database in MySQL using the USE query.
Syntax
Use DatabaseName;
To change the current database using JDBC API you need to:
Register the driver: Register the driver class using the registerDriver() method of the DriverManager class. Pass the driver class name to it, as parameter.
Establish a connection: Connect ot the database using the getConnection() method of the DriverManager class. Passing URL (String), username (String), password (String) as parameters to it.
Create Statement: Create a Statement object using the createStatement() method of the Connection interface.
Execute the Query: Execute the query using the execute() method of the Statement interface.
Example
Following JDBC program establishes connection with MySQL and selects the database named mydatabase -
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
public class ChangeDatabaseExample {
public static void main(String args[]) throws SQLException {
//Registering the Driver
DriverManager.registerDriver(new com.mysql.jdbc.Driver());
//Getting the connection
String mysqlUrl = "jdbc:mysql://localhost/";
Connection con = DriverManager.getConnection(mysqlUrl, "root", "password");
System.out.println("Connection established......");
//Creating the Statement
Statement stmt = con.createStatement();
//Create table Query
String query = "USE mydatabase";
//Executing the query
stmt.execute(query);
System.out.println("Database changed......");
}
}Output
Connection established...... Database changed......
In addition to this, you can also select/switch to required database in MySQL by passing its name at the end of the URL as shown below -
//Getting the connection String url = "jdbc:mysql://localhost/mydatabase"; Connection con = DriverManager.getConnection(url, "root", "password");
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