Improve Query Performance when SQL Server Ignores Nonclustered Index
In this article, we look at why SQL Server may not use a non-clustered index over the clustered index and what you can do to improve performance.
2023-10-30
In this article, we look at why SQL Server may not use a non-clustered index over the clustered index and what you can do to improve performance.
2023-10-30
In this article, we look at execution plans and performance of a natively compiled stored procedure versus a traditional stored procedure.
2023-10-16
We need to monitor our servers, but individual metrics have more complexity than just setting simple limits for their readings.
2023-02-06 (first published: 2023-01-30)
312 reads
2022-08-05
451 reads
2020-11-13
121 reads
2020-11-12
514 reads
2020-06-23
851 reads
2020-06-22
492 reads
The SQL Server set statistics time statement displays the number of milliseconds to parse, compile, and execute a T-SQL query statement. This set statement is widely used to assess times to implement a query statement. The set statistics time statement reports the CPU time and elapsed time for performance tuning.
2020-05-08
Kendra Little talks about write ahead logging in SQL Server, one of the basic concepts that developers and DBAs should understand.
2024-06-12 (first published: 2020-01-20)
4,701 reads
By Steve Jones
Superheroes and saints never make art. Only imperfect beings can make art because art...
One feature that I have been waiting for years! The new announcement around optimize...
Following on from my last post about Getting Started With KubeVirt & SQL Server,...
Comments posted to this topic are about the item The AI Bubble and the...
Hi, in a simple oledb source->derived column->oledb destination data flow, 2 of my...
hi, i noticed the sqlhealth extended event is on by default , and it...
I am currently working with Sql Server 2022 and AdventureWorks database. First of all, let's set the "Read Committed Snapshot" to ON:
use master; go alter database AdventureWorks set read_committed_snapshot on with no_wait; goThen, from Session 1, I execute the following code:
--Session 1 use AdventureWorks; go create table ##t1 (id int, f1 varchar(10)); go insert into ##t1 values (1, 'A');From another session, called Session 2, I open a transaction and execute the following update:
--Session 2 use AdventureWorks; go begin tran; update ##t1 set f1 = 'B' where id = 1;Now, going back to Session 1, what happens if I execute this statement?
--Session 1 select f1 from ##t1 where id = 1;See possible answers