How to retrieve data from sqlite

I read the documentation and was excited that FF could intergrate with SQLite.

But when I tried to intergare with SQLite, I still couldn't query data from SQLite to the screen. Can you tell me where I'm wrong?

My scenario as below:

1. Config SQLite

   

2. Add read Queries as below

   

3. I alredy checked this query is corrent and have data by DB Browser

   

4. On screen, I add Grid View and call this query

   

5. I add Text to display the values

   

6. But the retrun value on FF is NULL, I don't know where I'm wrong