Tagged Questions
0
votes
0answers
41 views
How to improve the performance for SQL Server Count(distinct()) and Sum() functions? [closed]
The below one is my query. It's taking 12 seconds for the execution process. The count(distinct()) and SUM() functions are taking long time for execution. I tried it after create the non-cluster index ...
-8
votes
2answers
137 views
How can I check for SQL Server performance problems using T-SQL? [closed]
I know how to use the Profiler, Performance Monitor, and Activity Monitor. I want to find a way to troubleshoot performance using T-SQL. How can I check for Microsoft SQL Server performance problems ...
2
votes
1answer
189 views
exist (select * from my table)
My colleague suggests that Query 1 should run faster than Query 2. If it's true, please anyone explain me the reason. Thanks.
Query (1):
IF ( SELECT COUNT(UnitTrustCounterId)
FROM ...
1
vote
1answer
169 views
Using sys.dm_os_performance_counters and DIFF to display logins per second
PROBLEM
Running my script below i can see the number of logins as an accumulated number to my instance:
SELECT cntr_value AS [LoginsPerSec]
FROM sys.dm_os_performance_counters
WHERE
...
1
vote
1answer
206 views
What can cause an UPDATE statement to execute endless?
I have a stored-procedure which is executed at 7 o'clock in the morning that updates the database because new records were imported at night.
Today it started but never endet.
So i've tried to run ...
5
votes
2answers
624 views
The order of INNER JOIN's
I would like to know if there are any rules about the order of INNER JOIN's in T-SQL 2000.
I had 62x the performance on my query when my INNER JOIN that act like a filter is placed at first instead ...
1
vote
2answers
537 views
Solving high page load time using SQL Profiler
I'm looking into a performance of a login page taking 10-13 seconds to load. I'm using a DEMO database to test the performance and tweak to see any improvement. I'm using SQL Profiler to capture what ...
