Android Sqlite Database: it couldn't recognize the new column or new table I added in an exsiting database 
<p>I had a working database. I just added one more column in a table. It keeps saying no that column. So I changed the table name. Now it says that no that table name. Then I changed the database name. it still gave error. it works fine after I changed back the table name and remove the extra column I added. Could you please help me figure out what's wrong? 
How do I run my code on a clean emulator? How do I verify that the code that creates the table is getting executed? How do I get the sqlite db off the emualtor and look at it using a sqlite database browser to check that the table does actually exist?</p>

<p>Many thanks!
Tong</p>
