SQL Server supports a number of different logical operators. These operators can be used for testing Boolean conditions that return true, false and unknown in your T-SQL code. Logical operators are useful for defining constraints to limit the rows be processed when selecting or updating data. This chapter will provide an overview of the logical […]
2022-04-20 (first published: 2020-10-09)
3,690 reads
Learn about scalar user defined functions in this next level in the Stairway.
2020-10-21 (first published: 2020-10-08)
3,482 reads
Business Intelligence Architect, Analysis Services Maestro, and author Bill Pearson introduces the DAX ALLSELECTED() function, discussing its syntax, uses and operation. He then provides hands-on exposure to ALLSELECTED(), focusing largely upon its most popular use in supporting “visual totals” in Power BI.
2024-01-16 (first published: 2020-09-02)
3,538 reads
Learn how to remove TDE from a database and return it to a normal state.
2024-10-09 (first published: 2020-08-26)
9,752 reads
Business Intelligence Architect, Analysis Services Maestro, eight-year Microsoft Data Platform MVP and author Bill Pearson introduces the DAX CALCULATE() function, discussing its syntax, basic uses and operation. He then provides hands-on exposure to CALCULATE(), focusing largely upon its most basic uses in evaluating an expression in a context that is modified by specified filters.
2024-01-16 (first published: 2020-08-12)
7,687 reads
Throughout this series, we’ve consistently dealt with delimited text files; comma and tab, for instance. We’ve used the U-SQL built-in extractors to process these files. But what if we need to deal with different types of file, like JSON, XML or fixed width? That’s where custom extractors come in. U-SQL provides us with the ability […]
2020-07-01
1,533 reads
In this third level of the Stairway, we examine how to store your encryption certificate in the Azure Key Vault.
2024-06-26 (first published: 2020-06-24)
7,454 reads
In this level of the stairway, learn about multiple dates in fact table
2020-06-10
5,377 reads
In this level of the Stairway to Linux, learn how to use the TIG stack to monitor your SQL Server instance on Linux.
2020-05-27
1,910 reads
In the second level of the stairway to TDE, we examine how you can restore your databases on another instance after moving the encryption certificate.
2024-06-26 (first published: 2020-05-20)
44,157 reads
By Vinay Thakur
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I am currently upgrading a very old database running SQL Server 2008 to SQL...
Hi Team, I am planning to apply security updates for SQL Server 2016 on...
What is returned from this query?
SELECT
( SELECT COUNT (*) FROM Sales.SalesOrderHeader AS soh
WHERE soh.OrderDate > '01/01/2011' AND soh.OrderDate < '01/01/2012') AS OrdersIn2000
, ( SELECT COUNT (*) FROM Sales.SalesOrderHeader AS soh
WHERE soh.OrderDate > '01/01/2012' AND soh.OrderDate < '01/01/2013') AS OrdersIn2001
, ( SELECT COUNT (*) FROM Sales.SalesOrderHeader AS soh
WHERE soh.OrderDate > '01/01/2013' AND soh.OrderDate < '01/01/2014') AS OrdersIn2002; See possible answers