MySQL transaction rollback, error points record

Actually measured mysql establish / Statements that delete a table or change the table structure take effect immediately .
It didn't work out to transaction.Commit(); The table is generated .

Rollback transaction cannot delete the created table , It seems that you can only delete the created table while rolling back ;

Once the statement creating the table is executed, it will take effect immediately , I will commit, Can't roll back ; In the and update When used alternately update Also commit, the update Can't roll back , Separate the creation and update transactions