Carlos Robles

Carlos Robles is Microsoft Data Platform MVP also a very experienced multi platform DBA (MySQL, Oracle, SQL Server, SQL Azure) with over 10 years of experience in the database field.

He has worked in database support as a primary consultant and DBA manager for large national and international companies in the healthcare, finance and insurance, retail, food and energy industries.

International speaker, author, blogger, mentor, Guatemala SQL User group leader. If you don’t find him talking about geek stuff with his friends on twitter, it is very likely that he will be having a great time with his wife and daughter in the beautiful outdoors of Colorado.
  • Tagline: Just another witchcraft and wizardry site and DBA tips,
  • Interests: SQL Server, Linux, Databases
  • Blog: http://dbamastery.com

SQLServerCentral Article

Import flat files to SQL Server on Linux using Azure Data Studio

Have you ever wonder how to import flat files to SQL Server on Linux? In this article, I will share my experience loading data to a Linux SQL Server instance using the new Azure Data Studio data import extension from macOS.

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2021-01-22 (first published: )

3,982 reads

SQLServerCentral Article

Managing SQL Server containers using Docker SDK for Python - Part 2

There are multiple ways to interact with the Docker daemon, as command line client API or GUI based tools like Kitematic. Docker also provides a SDK for Go and Python,  this SDK can be used to create and manage Docker containers the same way it works with the Docker engine API.

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2019-09-16 (first published: )

1,884 reads

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Question of the Day

Changing the Schema

I set up a few users on my SQL Server 2022 instance.

CREATE LOGIN User1 WITH PASSWORD = 'Demo12#1'
CREATE USER User1 FOR LOGIN User1
GO
CREATE LOGIN User2 WITH PASSWORD = 'Demo12#2'
CREATE USER User2 FOR LOGIN User2
GO
CREATE LOGIN User3 WITH PASSWORD = 'Demo12#3'
CREATE USER User3 FOR LOGIN User3
GO
I then created a schema that one of them owned. Under this schema, I added a table with some data.
CREATE SCHEMA MySchema AUTHORIZATION User1
GO
CREATE TABLE Myschema.MyTable(myid INT)
GO
INSERT MySchema.MyTable
(
    myid
)
VALUES
(1), (2), (3)
GO
SELECT * FROM MySchema.MyTable
GO
I granted rights and verified that User2 could access this table.
GRANT SELECT ON Myschema.MyTable TO User2
GO
SETUSER 'USER2'
GO
SELECT * FROM MySchema.MyTable
GO
This worked. Now, I move this schema to a new user.
ALTER AUTHORIZATION ON SCHEMA::Myschema TO User3;
GO
What happens with this code?
SETUSER 'USER2'
GO
SELECT * FROM MySchema.MyTable
GO

See possible answers