02-20-2019
Quote:
Originally Posted by
figaro
I have a big, ugly query which is quadratic in the input size and therefore want to display an approximate completion time prior to sending it off:
I don't see the link between what you want and the query and like you have said it's not correct. So, to analyze the query you have the explain command to get information about the plan that will be used and from there you can estimate quick query and slow query.
See the official web site for "EXPLAIN"
The other option is to do it on the application side.
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LEARN ABOUT PHP
mssql_next_result
MSSQL_NEXT_RESULT(3) MSSQL_NEXT_RESULT(3)
mssql_next_result - Move the internal result pointer to the next result
SYNOPSIS
bool mssql_next_result (resource $result_id)
DESCRIPTION
When sending more than one SQL statement to the server or executing a stored procedure with multiple results, it will cause the server to
return multiple result sets. This function will test for additional results available form the server. If an additional result set exists
it will free the existing result set and prepare to fetch the rows from the new result set.
PARAMETERS
o $result_id
- The result resource that is being evaluated. This result comes from a call to mssql_query(3).
RETURN VALUES
Returns TRUE if an additional result set was available or FALSE otherwise.
EXAMPLES
Example #1
mssql_next_result(3) example
<?php
// Connect to MSSQL and select the database
$link = mssql_connect('MANGOSQLEXPRESS', 'sa', 'phpfi');
mssql_select_db('php', $link);
// Send a query to MSSQL
$sql = 'SELECT [name], [age] FROM [php].[dbo].[persons]';
$query = mssql_query($sql, $link);
// Iterate through returned records
do {
while ($row = mssql_fetch_row($query)) {
// Handle record ...
}
} while (mssql_next_result($query));
// Clean up
mssql_free_result($query);
mssql_close($link);
?>
PHP Documentation Group MSSQL_NEXT_RESULT(3)