Question

can anyone tell me why this doesn’t work?

db = openOrCreateDatabase("database.db", SQLiteDatabase.CREATE_IF_NECESSARY, null);
                 db.setLocale(Locale.getDefault());
                 db.setLockingEnabled(true);
                 db.setVersion(1); 

                 String dropTableA = "DROP TABLE if exists databaseA";
                 String createTableA = "CREATE TABLE databaseA(" +
                 "_id INTEGER PRIMARY KEY AUTOINCREMENT, " +
                 "Nome TEXT, Telefone INTEGER)";

                 String dropTableB = "DROP TABLE if exists databaseB";
                 String createTableB = "CREATE TABLE databaseB(" +
                 "_id INTEGER PRIMARY KEY AUTOINCREMENT, " +
                 "Localidade TEXT, " +
                 "fk_dbA_id INTEGER NOT NULL CONSTRAINT dbA_id REFERENCES databaseA(_id) ON " +
                 "DELETE CASCADE)";

                 String nomeValue = nome.getText().toString();
                 String telValue = tel.getText().toString();
                 String localValue = local.getText().toString();
                 //PROBLEM MAY LIE HERE
                 String insertA = "insert into databaseA(_id, Nome, Telefone) values(1, "+nomeValue+", "+telValue+")"; 
                 //PROBLEM MAY LIE HERE
                 String insertB = "insert into databaseB(_id, Localidade, fk_dbA_id) values(1, "+localValue+", 1)"; 

                 db.execSQL(dropTableA);
                 db.execSQL(createTableA);
                 db.execSQL(dropTableB);
                 db.execSQL(createTableB);
                 db.execSQL(insertA);
                 db.execSQL(insertB);

Answer 1

 String insertA = "insert into databaseA(_id, Nome, Telefone) values(1, "+nomeValue+", "+telValue+")"; 
             //PROBLEM MAY LIE HERE
             String insertB = "insert into databaseB(_id, Localidade, fk_dbA_id) values(1, "+localValue+", 1)"; 

I Think you can write it like this:

 String insertA = "insert into databaseA(_id, Nome, Telefone) values(1, \""+nomeValue+"\", "+telValue+")"; 
             //PROBLEM MAY LIE HERE
             String insertB = "insert into databaseB(_id, Localidade, fk_dbA_id) values(1, \""+localValue+"\", 1)";