sqlite cursor returning wrong value for a column

Question

why I am getting from the database null from column url ?

I am adding data in sqlite like this

  void addObjects(Objects o         


        

Answer 1

In your Objects geturl(String name) method , change

Cursor cursor = db.query(TABLE_OBJECTS, new String[] {OBJECT_URL,
                OBJECT_NAME , OBJECT_CATEGORY, OBJECT_TYPE }, OBJECT_NAME + "=?",
                new String[] { String.valueOf(name) }, null, null, null, null);

to

Cursor cursor = db.query(TABLE_OBJECTS, new String[] {OBJECT_ID,
                OBJECT_NAME , OBJECT_URL, OBJECT_TYPE }, OBJECT_NAME + "=?",
                new String[] { String.valueOf(name) }, null, null, null, null);

Supposing that your Objects class has the following structure:

public class Objects {
    private String id;
    private String name;
    private String url;
    private String type;

    // methods
}

the tableColumns argument (new String[] {OBJECT_ID,OBJECT_NAME , OBJECT_URL, OBJECT_TYPE }) that you pass to the db.query() method has to respect the same order as in your Objects class (first the id, 2nd name, 3rd url, 4th type)