[sqlite] ABOUT ROWID

[王庆刚]

Hi , Everyone,
    When I use methodone : select * from table_name where rowid = somenumber ?
    When I use methodtwo : select * from table_name where ordinaryid = 
somenumber ?   (ordinary is not index)
    The table_name have at least two columns.
    I have some questions, as follows:
   1.The methodone is faster than the methodtwo?
   2.is rowid the default index?

    best wishes!