Mike Mascari wrote:
>
> I would avoid using the INTERSECT/EXCEPT code since the query rewriter
> rewrites these to IN clauses which cannot use indexes. As soon as the tables
> grow beyond more than a couple hundred rows, the statment becomes unusable.
> Instead, I would use a correlated subquery
Hello,
is null = null true or also null ?
more precisely I have this kind of situation in a mission critical
project and I'm,sadly, not an expert in SQL.
But until now I used null values with a specific meaning in my database,
and I didn't knew that
I would come in this situation:
=>create tabl
