How to Get Available Sql Types in a Database

package example.jdbc.databasetypevsjavatype;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
 
public class Main1 {
 
    public static void main(String[] args) throws Exception {
	Connection conn = getMySqlConnection();
	System.out.println("Got Connection.");
	Statement st = conn.createStatement();
	st.executeUpdate("drop table survey;");
	st.executeUpdate("create table survey (id int,name varchar(30));");
	st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");
 
	ResultSet rs = null;
	DatabaseMetaData meta = conn.getMetaData();
	rs = meta.getTypeInfo();
	while (rs.next()) {
	    // Get the database-specific type name
	    String typeName = rs.getString("TYPE_NAME");
 
	    // Get the java.sql.Types type to which this
	    // database-specific type is mapped
	    short dataType = rs.getShort("DATA_TYPE");
 
	    // Get the name of the java.sql.Types value.
	    System.out.println("type name=" + typeName);
	    System.out.println("dataType=" + dataType);
	    System.out.println("jdbcType=" + dataType);
	}
	st.close();
	conn.close();
    }
 
    private static Connection getHSQLConnection() throws Exception {
	Class.forName("org.hsqldb.jdbcDriver");
	System.out.println("Driver Loaded.");
	String url = "jdbc:hsqldb:data/tutorial";
	return DriverManager.getConnection(url, "sa", "");
    }
 
    public static Connection getMySqlConnection() throws Exception {
	String driver = "org.gjt.mm.mysql.Driver";
	String url = "jdbc:mysql://localhost/demo2s";
	String username = "oost";
	String password = "oost";
 
	Class.forName(driver);
	Connection conn = DriverManager.getConnection(url, username, password);
	return conn;
    }
 
    public static Connection getOracleConnection() throws Exception {
	String driver = "oracle.jdbc.driver.OracleDriver";
	String url = "jdbc:oracle:thin:@localhost:1521:caspian";
	String username = "mp";
	String password = "mp2";
 
	Class.forName(driver); // load Oracle driver
	Connection conn = DriverManager.getConnection(url, username, password);
	return conn;
    }
 
}