Android SimpleCursorAdapter No such column Id

Question

I have a Listview that I want to populate with information from my SQLite database with and this seemed like the most practical solution. In my debugger it says it\'s caused

Answer 1

It means either column name "name" or "data" does not exist in your database table. Can you publish the table schema? Are these column names available?

Answer 2

SimpleCursorAdapter always need a _id field .

Your database contains table without id column or id with other column name . so uninstall app . and edit CREATE statement as :

  "CREATE TABLE IF NOT EXISTS contact_data( _id INTEGER PRIMARY KEY AUTOINCREMENT,  something ,............ )

Answer 3

Actually declaring the _id as suggested above will work "_id INTEGER PRIMARY KEY AUTOINCREMENT", but if you don't need _id to be unique over the life of the table, you can omit the AUTOINCREMENT keyword, as the "PRIMARY KEY" will also autoincrement, but is logically equivalently to (max(_id)+1), which guarantees uniqueness which is really what you want when using the CursorAdapter.

Answer 4

You are not including _id in your column list for the query you do in getSpinnerData().

FYI,

You must be extending CursorAdapter which demand _id column.

_id is used only in CursorAdapter to determine which column is id. You can override this behavior in CursorAdapter or add alias in query to id.