note 72216 added to function.pdostatement-execute
| From: | narcis at narcisradu dot com | Date: | Mon, 08 Jan 2007 09:16:00 +0000 |
| Subject: | note 72216 added to function.pdostatement-execute | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-121415@lists.php.net to get a copy of this message | ||
For a query like this:
SELECT
t1.user_id, t1.user_name,
t2.*
FROM table1 t1
LEFT JOIN table2 t2 ON t2.user_id = t1.user_id
WHERE t1.user_id = 2
If I don't have an entry in table2 for user_id=2, the user_id in result will be empty.
SELECT
t1.user_id, t1.user_name,
t2.user_pet, t2.user_color, t2.user_sign
FROM table1 t1
LEFT JOIN table2 t2 ON t2.user_id = t1.user_id
WHERE t1.user_id = 2
This query will return nonempty user_id.
So please be careful with wildcard select.
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Probable Submitter: 82.77.232.138
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Manual Page -- http://www.php.net/manual/en/function.pdostatement-execute.php
Edit -- https://master.php.net/note/edit/72216
Del: integrated -- https://master.php.net/note/delete/72216/integrated
Del: useless -- https://master.php.net/note/delete/72216/useless
Del: bad code -- https://master.php.net/note/delete/72216/bad+code
Del: spam -- https://master.php.net/note/delete/72216/spam
Del: non-english -- https://master.php.net/note/delete/72216/non-english
Del: in docs -- https://master.php.net/note/delete/72216/in+docs
Del: other reasons-- https://master.php.net/note/delete/72216
Reject -- https://master.php.net/note/reject/72216
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