64 lines
1.7 KiB
Java
64 lines
1.7 KiB
Java
import org.mariadb.jdbc.*;
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import java.sql.*;
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public class Q2BestPays{
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public static String[] bestPays() {
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try{
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int idPays = -1;
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String nomPays = null;
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String bestPays = null;
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int score = 0;
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int bestScore = 0;
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Connection cnx = DriverManager.getConnection(
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"jdbc:mariadb://dwarves.iut-fbleau.fr/wamster",
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"wamster","32201909");
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try {
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Class.forName("org.mariadb.jdbc.Driver");
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}
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catch(ClassNotFoundException e){
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cnx.close();
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return null;
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}
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try {
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PreparedStatement pstCompetiteur = cnx.prepareStatement(
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"SELECT * FROM DEV31TP01Q1_ListePays");
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ResultSet rsCompetiteur = pstCompetiteur.executeQuery();
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while (rsCompetiteur.next()){
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idPays = rsCompetiteur.getInt("idPays");
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nomPays = rsCompetiteur.getString("NomPays");
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score = 0;
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PreparedStatement pstScore = cnx.prepareStatement(
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"SELECT score FROM DEV31TP01Q1_score WHERE idCompetiteurs=?");
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pstScore.setInt(1, idPays);
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ResultSet rsScore = pstScore.executeQuery();
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pstScore.close();
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while (rsScore.next()){
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score += rsScore.getInt("score");
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}
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rsScore.close();
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if (score > bestScore){
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bestScore = score;
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bestPays = nomPays;
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}
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}
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rsCompetiteur.close();
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pstCompetiteur.close();
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if (idPays == -1){
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cnx.close();
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return null;
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}
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cnx.close();
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return new String[] {bestPays, Integer.toString(bestScore)};
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}
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catch(SQLException e){
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cnx.close();
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return null;
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}
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}
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catch(SQLException e){
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return null;
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}
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}
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} |