You could have your program check to see if the lastname form field was
empty, and send different queries to the database depending on what they
entered.
I'm a perl person, not php, so my php syntax might not be perfect, but
you'll get the idea:
if ($lastname =="") {
$query="SELECT foo, baz, bar FROM public.table WHERE ssn='$ssn'";
} elsif (($lastname != "") and ($ssn != "")) {
$query="SELECT foo, baz, bar FROM public.table WHERE lastname ~*
'$lastname' OR ssn='$ssn'";
}
then execute the query
or, get fancy, and build the where clause:
if ($lastname !="") {
$where.=" lastname ~* '$lastname'";
}
if ($ssn != "") {
if ($where != "") {
$where.=" OR ";
}
$where.=" ssn='$ssn'";
}
$query="SELECT foo, baz, bar FROM public.table WHERE $where";
Then, run the query.
Just a couple of ideas.
Susan Cassidy
"Mike Poe" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
01/10/2007 05:38 PM
To
pgsql-general@postgresql.org
cc
Subject
[GENERAL] Question - Query based on WHERE OR
I'm a rank newbie to Postgres & am having a hard time getting my arms
around this.
I'm trying to construct a query to be run in a PHP script. I have an
HTML form were someone can enter either a last name or a social
security number & then query the database based on what they entered.
My query looks like this:
SELECT foo, baz, bar FROM public.table WHERE lastname ~* '$lastname' OR
ssn='$ssn'"
I need to leave the last name a wildcard in case someone enters a
partial name, lower case / upper case, etc.
I want the SSN to match exactly if they search by that.
The way it's written, if I enter nothing for the last name, it returns
all rows, regardless of what I enter for the ssn.
I understand why it happens, but what can I do to return the desired
results?
Thank you.
Mike
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