Re: How to check if result of request to DB is empty?

[drug via Digitalmars-d-learn]

12.12.2015 13:28, Suliman пишет:
it's seems that next block is execute even if is rs.next() is false:
writeln("rs.next()-->", rs.next());
if(!rs.next()) //if user do not in DB
{
// is execute even if rs.next() is false
writeln("Executed, but rs.nst was set to false");
}

The output:
rs.next()-->false
Executed, but rs.nst was set to false

Why?



That's right, because you have `if(!rs.next())`. If you change this to 
`if(rs.next())` this code block won't be executed.