从'view'中选择导致PHP和SQL Server中的执行超时

Question

I have created a view called stats that selects the sum of records that adhere to a certain attribute

CREATE VIEW stats
AS
SELECT
    SUM(CASE WHEN attribute = '1' THEN 1 ELSE 0 END) AS attribute1,
    SUM(CASE WHEN attribute = '2' THEN 1 ELSE 0 END) AS attribute2
FROM table
GO

The view is created fine and when I say SELECT * FROM stats in SQL Server Management Studio the results show up fine.

The problem is when I use PHP to grab the data:

$GRAB_STATS_DATA = $DBH->query("SELECT * FROM stats");
while($row = $GRAB_STATS_DATA->fetch()){
    $attribute1 = $row['attribute1'];
    ... // and so on
}

I get an error saying [PHP Fatal error: Maximum execution time of 300 seconds exceeded in C:\ ... on line 17]

Why does the above timeout using PHP (or take longer than 300sec to execute) but display fine in SQL Server Management Studio?

Answer 1

Use:

foreach ($GRAB_STATS_DATA->fetchAll() as $row){
  $attribute1 = $row['attribute1'];
    ... // and so on
}