Hi Matt,

For the query style you would replace "ON" with "WHERE".  You won't use "ON" 
unless you use "JOIN"; they come together.

SELECT u.*, a.city FROM users u, addresses a WHERE u.id=a.user_id

Marc F.

""Matt Monaco"" <[EMAIL PROTECTED]> wrote in message 
news:[EMAIL PROTECTED]
> When using JOINS by the simply supplying a comma separated list of tables 
> in the FROM clause, is the ON argument normally associated with a join 
> intended to be addressed in the WHERE clause, or should ON still be used?
>
> // Comma separated join
> SELECT u.*, a.city FROM users u, addresses a WHERE u.id=a.user_id;
>
> // Actual JOIN clause
> SELECT u.*, a.city FROM users u INNER JOIN addresses a ON u.id=a.user_id;
>
>
> // Query style in question
> SELECT u.*, a.city FROM users u, addresses a ON u.id=a.user_id;
>
> If not ON, is there at least another viable argument?  The reason I'm 
> interested is for a query involving 5 or 6 tables and WHERE arguments 
> which do not deal with the relationships.  I would like to assure the 
> efficiency of this query.
>
>
> Thanks in advance,
> Matt 

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