This is the code I am working with <?php $link = mysql_connect(\'localhost\', \'root\', \'\') OR die(mysql_error());
i am working with a very large data set (786,432 rows to be precise). So, to prevent memory limits I want to loop over the data set in piles of 50,000 rows, so to test this out I thought I would try:
I have a form on a website that needs validating before entering the form data into the database. Its checking whether a username already exists by user the mysql_num_rows function. But i cannot see
How can I see how many rows the following query returns? mysql_select_db($database_aoldatabase, $aoldatabase);
I have a table, id / category / extra / another I would like to check a row in the table for duplicate entries.
The result is always 1: $sql = \'SELECT COUNT(Vote) FROM \' . $table; $res = mysql_query($sql, $conn); $vote_total = mysql_num_rows($res);
This questio开发者_开发知识库n already has answers here: Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result [duplicate]
We have been working for a few hours on a serious problem. We 开发者_如何学Gohave the following code:
How do I find mysql_num_rows for an object. This gives an error: $query开发者_JAVA技巧 = mysql_query($sql) or die(mysql_error());
I don\'t know if i am doing it right, this is what I got: while($row = mysqli_fetch_assoc($result)) { $items = mysqli_num_rows($row);
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