Statistical calculations in SQL are often perfectly easy to do. SQL was designed to be a natural fit for calculating correlation, regression and variance on large quantities of data. It just isn't always immediately obvious how. In the second of a series of articles, Phil factor shows how calculating a non-parametric correlation via Kendall's Tau or Spearman's Rho can be stress-free.
2017-06-20
3,513 reads
SSIS Catalog Compare helps DBAs work with their SSIS project configurations and catalogs, deploying changes from environment to environment.
2017-06-19
1,169 reads
What is normal? More to the point, what is abnormal? We will look at using R to score outliers in a typical monitoring dataset.
2017-06-19
4,100 reads
2017-06-16
2,576 reads
Your SQL Server drives are running out of disk space and you want a way to quickly tell which sub-directories are taking the most space - here's how to do it with T-SQL.
2017-06-16
4,950 reads
Setting up R in SQL 2016 proved to be trickier than expected, but here is how to avoid the frustrations.
2017-06-15
2,285 reads
Of course we all like our colleagues to think that we know everything there is to know about SQL Server Collations. However, the truth is that it is a rather complicated topic to fully understand and the cost of getting collation wrong can be great. If only one could ask certain questions on forums or at conferences without blushing. Help is at hand, because Robert Sheldon once again makes the complicated seem simple by answering those questions that you were too shy to ask.
2017-06-15
3,969 reads
In this tip, Greg Larsen shows you how to set variables in your calling T-SQL code when using sp_execute sql.
2017-06-14
4,088 reads
How do you currently set alerting thresholds? What is normal? And more importantly, what is truly abnormal? We will explore these questions.
2017-06-13
1,814 reads
Paul White digs into row goals as he explains some interesting and inconsistent behavior with UNION ALL queries in SQL Server.
2017-06-13
5,896 reads
It is Friday, the queries are running, and nobody is watching the bill. That...
By Steve Jones
Annabel retired from Redgate Software this week. Across most of my career at Redgate,...
By Tim Radney
As a SQL Server DBA with years of experience tuning production environments, I’ve seen...
Comments posted to this topic are about the item What is the Cloud?
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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 GOI 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 GOThis worked. Now, I move this schema to a new user.
ALTER AUTHORIZATION ON SCHEMA::Myschema TO User3; GOWhat happens with this code?
SETUSER 'USER2' GO SELECT * FROM MySchema.MyTable GOSee possible answers