package org.oliot.tutorials;
import java.sql.DriverManager;
import java.sql.ResultSet;
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:@143.248.57.21:1521:orcl";
private static final String DB_USER = "c##yale";
private static final String DB_PASSWORD = "yale";
public static void main(String[] argv) {
try {
System.out.println("Start!");
//createDbUserTable();
selectfromDbUserTable();
} catch (SQLException e) {
System.out.println(e.getMessage());
}
}
private static void selectfromDbUserTable()throws SQLException{
Connection dbConnection = null;
Statement statement = null;
String createTableSQL = "select * from DBUSER ";
try {
dbConnection = getDBConnection();
statement = dbConnection.createStatement();
System.out.println(createTableSQL);
// execute the SQL stetement
ResultSet rs=statement.executeQuery(createTableSQL);
while(rs.next()){
String userid=rs.getString("USER_ID");
System.out.println("USER_ID :"+userid);
}
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();
}
}
}
@SuppressWarnings("unused")
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;
}
}