Re: [Cppcms-users] cppdb::statement.affected() usage?

[Artyom <art...@ya...>]

> Hello!
> 
> The following SELECT gets one tuple:
> 
> cppdb::statement  st=session << "SELECT 1 FROM t1";
> cppdb::result r=st.row();
> 
> Now,  r.empty() returns false, which is correct, but st.affected() returns  
> 0.
> 
> cppdb::statement.affected() is supposed to return the selected  number of  
> tuples, which is 1 in this case, not 0.
> 
> Do I  misunderstand its usage?
> 


Yes, number of affected rows is number of rows affected by 
statements like DELETE or UPDATE, the behavior of  affected()
when using queries (like SELECT) is undefined and may cause 
exceptions.

Artyom




 
____________________________________________________________________________________
Need Mail bonding?
Go to the Yahoo! Mail Q&A for great tips from Yahoo! Answers users.
http://answers.yahoo.com/dir/?link=list&sid=396546091