When hiring...

When you're hiring, do you think a person would be qualified if they can answer most of your questions in pseudo code, or write out approximately what the code would look like on a white board? Is this good enough for getting a hacker, or do you think people should be expected to write everything without any outside help?

Here's a sample question.. "what if you were asked to write two relational tables in a database and link B to the parent A"

Response given verbally "You would want to create a foreign key for table B, which would be equal to the primary key ID of table A..." and so on, they could explain the whole process, but they weren't able to write the exact SQL and PHP code from memory (or they described it from a different framework). Is this typically ok?