Java tutorial
import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.SQLException; import java.sql.Statement; public class GetColumnNamesFromResultSet_MySQL { public static Connection getConnection() throws Exception { String driver = "org.gjt.mm.mysql.Driver"; String url = "jdbc:mysql://localhost/databaseName"; String username = "root"; String password = "root"; Class.forName(driver); Connection conn = DriverManager.getConnection(url, username, password); return conn; } public static void getColumnNames(ResultSet rs) throws SQLException { if (rs == null) { return; } ResultSetMetaData rsMetaData = rs.getMetaData(); int numberOfColumns = rsMetaData.getColumnCount(); // get the column names; column indexes start from 1 for (int i = 1; i < numberOfColumns + 1; i++) { String columnName = rsMetaData.getColumnName(i); // Get the name of the column's table name String tableName = rsMetaData.getTableName(i); System.out.println("column name=" + columnName + " table=" + tableName + ""); } } public static void main(String[] args) { Connection conn = null; Statement stmt = null; ResultSet rs = null; try { conn = getConnection(); // prepare query String query = "select id, name, age from employees"; // create a statement stmt = conn.createStatement(); // execute query and return result as a ResultSet rs = stmt.executeQuery(query); // get the column names from the ResultSet getColumnNames(rs); } catch (Exception e) { e.printStackTrace(); System.exit(1); } finally { // release database resources try { rs.close(); stmt.close(); conn.close(); } catch (SQLException e) { e.printStackTrace(); } } } }