Android :: Class SQLiteQueryBuilder - BUGS?

I wrote a code snippet like this:

CODE:............

Then i got the sql statement:

SELECT name FROM sqlite_master WHERE (type='table'name='qq_rms_ver')

There is no word between two conditions.

Q1: Method appendWhere can only append ONE query condition? why it named "append"?

Then i tried to edit the code.

CODE:.........

Q2: Why a bracket ')' is append to the end of the sql statement when execute the query?

Are they bugs? or i didn't understande the usage of the methods?