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Showing results for tags 'id'.
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SELECT user_id FROM users WHERE active = :active ORDER BY RAND() LIMIT 1 The above query works. But what if the users table is filled with thousands of users? Will this query break or be very slow? If so, what's the alternative solution to this? -
Say I have the following. record_id | record_name ----------------------------------- 1 one 2 two 3 three 3 three 3 three 4 four 5 five 5 five I want to search through through the table and find all the records. If there are multiple records with same id, I want to combine them into 1 variable and use that. So in the above example, I have 3 threes and 2 fives. I want to combine them so that I only get 1 three and 1 five. How can that be done? A normal query looks like this. $get_records = $db->prepare("SELECT * FROM records"); $get_records->execute(); $result_records = $get_records->fetchAll(PDO::FETCH_ASSOC); if(count($result_records) > 0) { foreach($result_records as $row) { $record_id = $row['record_id']; $record_name = $row['record_name']; } }