Check if values exits in database
<p>I want to check if a couple of values exists in the database. If they do, the method should return TRUE or FALSE if the cursor is null. But the problem is that it returns TRUE all the time despite the values are not in the database! What have I missed? </p>

<pre><code>    // This method check if the combination image path and contact name already exists in database
public boolean checkContentDatabase(String imageFilePath, String contactName) {

    String query = "Select * from " + DB_TABLE+ " where " + TABLE_IMAGE_PATH + "='" + imageFilePath + "' and " + TABLE_CONTACT_NAME + "='" + contactName +"' ;";

    Cursor c = db.rawQuery(query, null);

    if(c != null) // Exists in database
     {
     return true;
     }
     else
     {
         return false;
     }
}
</code></pre>
