IllegalArgumentException: column '_id' does not exist when call to SimpleCursorAdaptor

Question

I have a table named \"master\" with columns id, name, surname, gender, and designation

When I fire

Answer 1

This is happening because CursorAdapter must have an _id column in the table it is using.

With the Database(SQLite) in Android applications, it is better to add a column named _id" to all tables in order to be able to use CursorAdapter.

Alternatively, you can write an sql statement like

select member_id as _id from member _table where ....." 

in order to get a Cursor which may be used with CursorAdapter.

This is specified in CursorAdaptor's documentation:

Adapter that exposes data from a Cursor to a ListView widget. The Cursor must include a column named "_id" or this class will not work."

Answer 2

Simple and Salty

To overcome this problem, you have to rename the primary key field name as _id.

Answer 3

Your namemaster tables needs to have a column _ID defined to be used by SimpleCursorAdaptor. Make sure your table schema includes _ID and not an id as the later is wrong.

Answer 4

I believe the SimpleCursorAdapter assumes that there is a column '_id'. You need to create it so it would probably be easier for you to use "_id" instead of your own "id". Read the 2nd post on this page