FreeTDS Development Group

["Lowden, James K" <LowdenJK AT bernstein.com>]

> From: Pickett, David
> Sent: Friday, December 02, 2005 11:41 AM
> 
> 1. The subquery could, and maybe should for speed and one time
> compile resource savings, be embedded in a stored procedure.
> 
> 2. Many client side subqueries should be embedded in the parent
> select or, best of all, be joins or outer joins.  I recommend the
> ANSI join syntax, which is both more explicit and often supports
> different outer behavior when you move predicates between the where
> and in clauses.
...
> A properly executed join will *far* outperform client side nested
> subqueries, and you will have a *lot* less code in a higher language.

Right, right, right, right, right, right! 

I think what you want is something like:

        SELECT    e.employeeid, e.firstname, e.hiredate, e.salary, e.dsc
                , t.firstname 
        FROM    employees as e
        LEFT 
         JOIN   table2 as t 
        ON      e.firstname = t.firstname

That returns all rows from employees and any matching firstnames in
table2, using 13 year old ANSI SQL-92 syntax.  

Better queries, less work.  Go home early.  

HTH.  

--jkl

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