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A2

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Jan 28th, 2019
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  1.  
  2. import java.io.BufferedWriter;
  3. import java.io.FileWriter;
  4. import java.io.IOException;
  5. import java.sql.*;
  6.  
  7. public class A2 {
  8.  
  9. public static void main(String[] args) {
  10.  
  11.  
  12. Connection con = null;
  13. try {
  14. String url =
  15. "jdbc:postgresql://db.intern.mi.hs-rm.de:5432/database";
  16. con = DriverManager.getConnection(url, args[0], args[1]);
  17. Statement stmt = con.createStatement();
  18. String query = "SELECT * FROM event";
  19. ResultSet result = stmt.executeQuery(query);
  20. try (BufferedWriter writer = new BufferedWriter(new FileWriter("aktEvents.csv"))) {
  21. writer.write("aktuelle Events: \n \n");
  22. while(result.next()){
  23. writer.write("ID: " + result.getString("eventID" +
  24. " Bezeichnung: " + result.getString("bezeichnung") +
  25. " Konzept: " + result.getString("verName") +
  26. " Datum: " + result.getString("datum") +
  27. " Uhrzeit: " + result.getString("uhrzeit") +
  28. " Preis: " + result.getString("preis")) );
  29. }
  30.  
  31. } catch (IOException e) {
  32. e.printStackTrace();
  33. }
  34. }catch(
  35. SQLException e)
  36.  
  37. {
  38. System.out.println("Couldn't connect - aborting");
  39. System.exit(-1);
  40. }
  41.  
  42. }
  43.  
  44. }
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