Sheldon Hull

https://github.com/sheldonhull

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SQL .NET Requirements

SQL Server Install Requirements

SQL Server Installation requirements indicate .NET 3.5, 4.0, or 4.6 depending on the version. This is not including SSMS. At this point you shouldn’t use SSMS...

2018-07-12

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Blog Post

SQL .NET Requirements

SQL Server Install Requirements
SQL Server Installation requirements indicate .NET 3.5, 4.0, or 4.6 depending on the version. This is not including SSMS. At this point you shouldn’t use SSMS...

2018-03-30

11 reads

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Question of the Day

The Read Committed Snapshot Isolation behaviour

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;
go
Then, 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;
 

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