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How to check whether database exists?
1 Answer(s)      6 years and 5 months ago
Posted in : JDBC


I have to create a database in mysql. I am able to create that successfully from using JDBC. But before to creating the database, i want to check whether database exists or not? How can i do this check. can any one help me on this.

Please find thesample code

`public class CreateDatabase {  public static void main(String[] args) {
Connection connection = null;
Statement statement = null;
try {
  String url = "jdbc:mysql://localhost/mysql";
  connection = DriverManager.getConnection(url, "username", "password");

  statement = connection.createStatement();
  String hrappSQL = "CREATE DATABASE hrapp";
} catch (Exception e) {
} finally {
  if (statement != null) {
    try {
    } catch (SQLException e) {
    } // nothing we can do
  if (connection != null) {
    try {
    } catch (SQLException e) {
    } // nothing we can do


} `

Thanks, Narayan


View Answers

November 13, 2010 at 5:30 PM

Hi Friend,

You can use the following code:

import java.sql.*;
import java.util.*;
class CheckDatabase{
    public static void main(String[] args) throws Exception{
        ArrayList<String> list=new ArrayList<String>();
        Scanner input=new Scanner(;
        System.out.println("Enter Database name:");
        String database = input.nextLine();
        Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306","root","root");
        Statement st = con.createStatement();
        DatabaseMetaData meta = con.getMetaData();
        ResultSet rs = meta.getCatalogs();
        while ( {
            String listofDatabases=rs.getString("TABLE_CAT");
        System.out.println("Database already exists");
            st.executeUpdate("CREATE DATABASE "+database);
            System.out.println("Database is created");



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