Hi
Most databases don't return the number of rows in the results of a select
statement to odbc_num_rows. See:
http://www.php.net/manual/en/function.odbc-num-rows.php
Usually the way to determine the number of rows a select returns is to
either fetch them all and count them or do an additional aggregate query.
It depends on your requirements.
I presume that this behaviour is because in most cases the database engine
does not make the number of rows in a result set available to the driver.
The only way the php interface could calculate the number of rows would be
to fetch them all which may be inefficient - say if you were only
interested in the first row out of a possible 100. [anybody else care to
comment?]
Note, after an insert, update and delete statements odbc_num_rows does
return the number of rows affected.
cheers Simon
On Tuesday 09 November 2004 08:09, Petrus Ali Saputra wrote:
Here is my code:
$conn = odbc_connect(Ta Fara,,);
$query = SELECT * FROM Config;
$result = odbc_exec($conn, $query);
echo odbc_num_rows($result);
This code never give me a 0 result even there is some data. How can I
solve it? Thank you.
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