[nycphp-talk] MySQL Syntax questions
Susan Shemin
susan_shemin at yahoo.com
Wed May 28 19:02:02 EDT 2008
For #1, if you had parentheses around what you want together, MySQL will understand what to return. For example (no logic here, just example):
SELECT * FROM table WHERE ( this=this ) AND ( ( that=that OR
thing=thing ) OR ( ( blah=blah OR foo=foo ) AND ( bar=bar OR etc=etc ) ) )
----- Original Message ----
From: Kristina Anderson <ka at kacomputerconsulting.com>
To: talk at lists.nyphp.org
Sent: Wednesday, May 28, 2008 3:42:44 PM
Subject: [nycphp-talk] MySQL Syntax questions
I have two questions regarding syntax for MySQL queries.
1. I have complex queries where there are lots of conditional
statements, i.e. SELECT * FROM table WHERE this=this AND that=that OR
thing=thing OR blah=blah OR foo=foo AND bar=bar OR etc=etc OR
thing2=thing2...
They are not erroring out but they aren't narrowing the resultset
sufficiently...do I need parentheses or is there something else I need?
2. How can I select the last row inserted from a table WHERE
field1=somethingineed and field2 is NULL?
Thanks in advance...full of questions today I am!
--- Kristina
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