note 66351 added to function.db2-exec
| From: | shawn at frozen-o dot com | Date: | Fri, 19 May 2006 17:34:36 +0000 |
| Subject: | note 66351 added to function.db2-exec | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-111699@lists.php.net to get a copy of this message | ||
If you need to "emulate" offset/limit (as PEAR::DB puts it) for db2 queries, you will
definitely need to add array('cursor' => DB2_SCROLLABLE) to your db2_exec() call.
Otherwise, you will get nothing useful from db2_fetch_{whatever}() when you try to (see following
hack for example):
$limit = 10;
$offset = 20;
for ($i = 0; $i < $limit && $row = db2_fetch_array($result, $offset + $i); $i++) {
// stuff goes here
}
You can accomplish the same time of thing using sub-selects, "with" statements and other
things new to me in the world of DB2, but the more dynamically generated the queries, the more
difficult it gets to implement limit/offset behavior on the fly.
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Manual Page -- http://www.php.net/manual/en/function.db2-exec.php
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