The T-SQL DBCC, acronym for “Database Console Command”, is a command that performs several types of tasks. These tasks are mainly of the validation and maintenance type. Some of the...
2022-06-16
9,294 reads
When a database gets corrupted or failure occurs, before restoring the database from the backups you've created, it is recommended to create a tail-log backup of the records that...
2022-02-16 (first published: 2022-02-07)
878 reads
In the event of a disaster leading to database unavailability, restoring backups is the first step to ensure business continuity. However, situations may arise when attempts to restore the...
2021-12-06 (first published: 2021-11-25)
621 reads
The Recovery Point Objective (RPO) and Recovery Time Objective (RTO) are basic concepts related to the information to be recovered and the time that it will take to recover....
2021-10-06 (first published: 2021-09-24)
731 reads
The Recovery Point Objective (RPO) and Recovery Time Objective (RTO) are basic concepts related to the information to be recovered and the time that it will take to recover....
2021-09-24
13 reads
Running DBCC CHECKDB or DBCC CHECKTABLE on a database may report error 8961. Such a situation could occur while changing the data type of a table column from “ntext...
2021-07-19 (first published: 2021-07-08)
775 reads
Running DBCC CHECKDB or DBCC CHECKTABLE on a database may report error 8961. Such a situation could occur while changing the data type of a table column from “ntext...
2021-07-08
15 reads
As a SQL database administrator, it’s your responsibility to maintain and secure the databases. However, you may still experience database corruption. If not handled correctly and on time, you...
2021-05-24
5,692 reads
As a SQL database administrator, it’s your responsibility to maintain and secure the databases. However, you may still experience database corruption. If not handled correctly and on time, you...
2021-05-24
13 reads
As a SQL database administrator, I am responsible for maintaining our organization's SQL Server and databases. But despite implementing best database maintenance practices, including backups and performing DBCC CHECKDB...
2021-03-11 (first published: 2021-03-08)
802 reads
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,...
By DesertDBA
I haven’t posted in a while (well, not here at least since I’ve been...
Comments posted to this topic are about the item Refactoring SQL Code, which is...
Comments posted to this topic are about the item The Read Committed Snapshot Isolation...
Comments posted to this topic are about the item Working with JSON/JSONB Data in...
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