how to execute 2 queries together?

Question

I am working on a project and I want to insert into 2 different tables, so I wrote those 2 queries (query1, query2), when i run the program with just one query i don't get any exceptions but when executing together i have a bunch of exceptions, i used preparedStatement execute() and didn't work note : im not very experienced please explain easily

private void loadBusesToDB() throws SQLException{
            Connection connection = connect();

            String query = "INSERT INTO Bus (nomLigne, Marque, Matricule, Capacite)"
                    + "VALUES (?, ?, ?, ?)";

            String query2 = "INSERT INTO Lignes (nomLigne, Sntv Depart, SNTV Arrive, prix)"
                    + "VALUES (?, ?, ?, ?)";

            PreparedStatement ps = null;
            PreparedStatement ps2 = null;
        try {

            ps = connection.prepareStatement(query);
            ps2 = connection.prepareStatement(query2);

            for(Bus bus : Bus.buses){
                ps.setString(1, bus.getNomLigne());
                ps.setString(2, bus.getMarque());
                ps.setString(3, bus.getMatricule());
                ps.setInt(4, bus.getCapacite());
                ps.addBatch();   // THE INSERT HAPPENS HERE
            }
            ps.executeBatch();


            for(Lignes ligne : Lignes.lignes){
                ps2.setString(1, ligne.getNomLigne());
                ps2.setString(2, ligne.getDepart());
                ps2.setString(3, ligne.getArrive());
                ps2.setFloat(4, ligne.getPrix());
                ps2.addBatch();   // THE INSERT HAPPENS HERE
            }
            ps2.executeBatch();

        } catch (SQLException ex) {
            ex.printStackTrace();
            System.out.println("ERROR HERE");
            throw ex;
        }finally{
            ps.close();
            ps2.close();
            connection.close();
        }
        }

Error:

net.ucanaccess.jdbc.UcanaccessSQLException: UCAExc:::3.0.2 user lacks privilege or object not found: SNTV at net.ucanaccess.jdbc.UcanaccessConnection.prepareStatement(UcanaccessConnection.java:509) at sntv.MainMenuController.loadBusesToDB(MainMenuController.java:135) at sntv.MainMenuController.initialize(MainMenuController.java:277) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)

Answer 1

As @uaraven points out, you have a syntax error regarding column names in the second query. In SQL, any identifier (including table, column, stored procedures, functions, etc.) with spaces or special characters/symbols in their names or names match reserved words need to be escaped when referenced in any clause ( SELECT , FROM , JOIN , WHERE , GROUP BY , HAVING , ORDER BY ).

Now, different RDBMS's handle such escaping differently. Consider the following depending on your database. SQLite may be the only RDBMS that includes all.

Double Quotes (ANSI-SQL standard) ( Oracle, DB2, Postgres, RedShift, Teradata, SQLite, with added rules of capitalization for some; SQL Server/MySQL does support with mode changes)

String query2 = "INSERT INTO Lignes (nomLigne, \"SNTV DEPART\", \"SNTV ARRIVE\", prix)"
                    + " VALUES (?, ?, ?, ?)";

Square Brackets ( SQL Server, Sybase, SQLite, MS Access )

String query2 = "INSERT INTO Lignes (nomLigne, [Sntv Depart], [SNTV Arrive], prix)"
                    + " VALUES (?, ?, ?, ?)";

Backticks ( MySQL, MariaDB, Google BigQuery Standard SQL, SQLite, MS Access )

String query2 = "INSERT INTO Lignes (nomLigne, `Sntv Depart`, `SNTV Arrive`, prix)"
                    + " VALUES (?, ?, ?, ?)";