JDBC - Create A Table

JDBC Statement Example – Create A Table

Here’s an example to show you how to create a table in database via JDBC statement. To issue a create statement, calls the Statement.execute() method like this :

Statement statement = dbConnection.createStatement();
// execute create SQL stetement
statement.execute(createTableSQL);

Full example…

package com.mkyong.jdbc;
 
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
 
public class JDBCStatementCreateExample {
 
 private static final String DB_DRIVER = "oracle.jdbc.driver.OracleDriver";
 private static final String DB_CONNECTION = "jdbc:oracle:thin:@localhost:1521:MKYONG";
 private static final String DB_USER = "user";
 private static final String DB_PASSWORD = "password";
 
 public static void main(String[] argv) {
 
  try {
 
   createDbUserTable();
 
  } catch (SQLException e) {
 
   System.out.println(e.getMessage());
 
  }
 
 }
 
 private static void createDbUserTable() throws SQLException {
 
  Connection dbConnection = null;
  Statement statement = null;
 
  String createTableSQL = "CREATE TABLE DBUSER("
    + "USER_ID NUMBER(5) NOT NULL, "
    + "USERNAME VARCHAR(20) NOT NULL, "
    + "CREATED_BY VARCHAR(20) NOT NULL, "
    + "CREATED_DATE DATE NOT NULL, " + "PRIMARY KEY (USER_ID) "
    + ")";
 
  try {
   dbConnection = getDBConnection();
   statement = dbConnection.createStatement();
 
   System.out.println(createTableSQL);
                        // execute the SQL stetement
   statement.execute(createTableSQL);
 
   System.out.println("Table \"dbuser\" is created!");
 
  } catch (SQLException e) {
 
   System.out.println(e.getMessage());
 
  } finally {
 
   if (statement != null) {
    statement.close();
   }
 
   if (dbConnection != null) {
    dbConnection.close();
   }
 
  }
 
 }
 
 private static Connection getDBConnection() {
 
  Connection dbConnection = null;
 
  try {
 
   Class.forName(DB_DRIVER);
 
  } catch (ClassNotFoundException e) {
 
   System.out.println(e.getMessage());
 
  }
 
  try {
 
   dbConnection = DriverManager.getConnection(
     DB_CONNECTION, DB_USER,DB_PASSWORD);
   return dbConnection;
 
  } catch (SQLException e) {
 
   System.out.println(e.getMessage());
 
  }
 
  return dbConnection;
 
 }
 
}

Result

Here’s the result.

CREATE TABLE DBUSER(
  USER_ID NUMBER(5) NOT NULL, 
  USERNAME VARCHAR(20) NOT NULL, 
  CREATED_BY VARCHAR(20) NOT NULL, 
  CREATED_DATE DATE NOT NULL, 
  PRIMARY KEY (USER_ID) 
)
TABLE "user" IS created!