a second time

[kat2006]

in this sentence:you can call "SaveChanges" a second time without first calling "AcceptAllChanges".does "a second time" means twice? is it a proper expression?

 

[Anglika]

in this sentence: you can call "SaveChanges" a second time without first calling "AcceptAllChanges", does "a second time" mean twice? is it a proper expression?

A second time = you have done something once, now you do it again. When you have done it a second time, you have done it twice [two times].

It is fine as a phrase.