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SELECT Count(xxx) AS Xxx Does Not Return Integer


i'm using the latest downloaded version of MySQL and am currently producing an app that is compatible with MySQL, MS Access and SQL 2000/2005, i've not really come across any problems making the app run across the 3 platforms (except for Access's wierd date syntax and MySQL's lack of a boolean field) but the followin is doing my head in:

If i run a count query such as

SELECT Count(CategoryID) AS CountCats FROM MyDownloads etc etc
CountCat = (Downloads.Fields.Item("CountCats").Value)

And then run an IF statement in my page code such as:

<% If CountCat = 0 Then .... %>

This works fine in Access and SQL as the Count value is seen as an integer, but in MySQL this chucks an error unless the code reads

<% If CountCat = "0" Then .... %>

Why is the count value not returned as an integer????? I cant understand that at all, what else could it be? I've seen another post on the forum along the same lines but with no answer to it.

This is grim as every page that uses a count needs to have an additional IF statement put on it to change the second IF statement if the database is detected as MySQL.




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is this according to the SQL standard or is this just a coincidence? in
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say my column values are thus:

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1 | 3
1 | 4
2 | 1
2 | 2
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3 | 1
3 | 2

my select is like this:

my $sth = $dbh->prepare("SELECT session_id, col2
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");
$sth->execute;

while ( my @fields = $sth->fetchrow_array) {
print qq( $fields[0] );
}

I want to be able to show that there are three individual values (in col1) and that there are 9 values in col 2. I also need to show that (based on the number of values in col2 [relative to col 1]), that the average number is 3

Should I use select using UNIQUE (or some other value), or, should I select as shown but put it in a perl hash - or soemthing else?

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