Question

To update a value in my SQLite database (android) I use following method. The table is calles objects, the field I want to update is showinfo1, of a specific item with a certain id and level.

public void insertString(int id, int level, String field, String value){

        myDataBase.execSQL("UPDATE OBJECTS SET " + field + "=" + value + " WHERE _ID=" + id + " AND LEVEL =" + level);

    }

I have an error which I think is strange. It says there is ‘nosuchcolumn’ while there actually is one..:

android.database.sqlite.SQLiteException: no such column: true: UPDATE OBJECTS set showinfo1=true WHERE _ID=6 AND LEVEL =1

Any ideas how to solve this? Maybe my query is wrong?

Answer 1

your query should be like this

public void insertString(int id, int level, String field, String value){

    myDataBase.execSQL("UPDATE OBJECTS SET " + field + "='" + value + "' WHERE _ID=" + id + " AND LEVEL =" + level);

}

your string is translating to UPDATE OBJECTS SET URFIELD = true ... and it is searching for the column named true, so it should be URFIELD = 'true' (same goes for ID and LEVEL if they were text)