gwt html5 database SELECT WHERE AND - sql

Question

iam using http://code.google.com/p/gwt-mobile-webkit/downloads/list?q=label:API-Database
for my project.
there are two textboxes and the user can type in two words.
before these two words will be saved in html database i am looking if these two words are already in the the database saved.
the problem is i dont know how should look like the correct syntax for the
SELECT * FROM words WHERE word1=value1 AND word2=value2.
final String word1 = view.getWord1TextBox().getValue();
final String word2 = view.getWord2TextBox().getValue();
if(Database.isSupported()){
Database db = Database.openDatabase("Words", "1.0", "Word App", 10000);
db.transaction(new TransactionCallback() {
public void onTransactionStart(SQLTransaction tx) {
tx.executeSql("SELECT * FROM words WHERE word1=(?) AND word2=(?)", new Object[]{word1, word2}, new StatementCallback<JavaScriptObject>() {
public void onSuccess(SQLTransaction transaction, SQLResultSet<JavaScriptObject> resultSet) {
System.out.println(" count of rows : "+ resultSet.getRowsAffected());
}
public boolean onFailure(SQLTransaction transaction,SQLError error) {
return false;
}
});
}
public void onTransactionSuccess() {
}
public void onTransactionFailure(SQLError error) {
//setTextMessageLabel("Could not open database", label );
}
});
}
the resultSet.getRowsAffected() is everytime = 0
how should look like the correkt query?
or is there another problem?
please help

Answer 1

How do you know your insert worked?
Does "SELECT * FROM words" return anything?
I use http://code.google.com/p/gwt-mobile-webkit/wiki/DataServiceUserGuide so my syntax is a little different but using the developer tools in chrome you can find the database and run sqlite command in it.
Doing that, this gives me an error
SELECT * from lesson where desc = (summer)
while using quotes works
SELECT * from lesson where desc = ("summer")
SELECT * from lesson where desc = "summer"
You may need to escape it in your code...
"SELECT * FROM words WHERE word1=(\"?\") AND word2=(\"?\")"