Stairway Series

Stairway to Advanced T-SQL

Stairway to Advanced T-SQL Level 11: Using Logical Operators

  • Stairway Step

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 […]

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2022-04-20 (first published: )

3,752 reads

Stairway to DAX and Power BI

Stairway to DAX and Power BI - Level 15: The DAX ALLSELECTED() Function

  • Stairway Step

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.

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2024-01-16 (first published: )

3,683 reads

Stairway to DAX and Power BI

Stairway to DAX and Power BI - Level 14: DAX CALCULATE() Function: The Basics

  • Stairway Step

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.

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2024-01-16 (first published: )

7,828 reads

Stairway to U-SQL icon

Stairway to U-SQL Level 22: Creating a Custom Extractor

  • Stairway Step

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 […]

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2020-07-01

1,570 reads

Stairway to TDE icon

Restore a Backup of a TDE Database to Another Server: Level 2 of the Stairway to TDE

  • Stairway Step

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.

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2024-06-26 (first published: )

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Comments posted to this topic are about the item The North Star for the...

Multiple Escape Characters

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Multiple Escape Characters

reaching ftp thru winscp but erroring in ssis ftp task connection

By stan

Hi, below i show various results trying to reach our ftp site (a globalscape...

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Question of the Day

Multiple Escape Characters

In SQL Server 2025, I run this code (in a database with the appropriate collation):

SELECT UNISTR('%*3041%*308A%*304C%*3068 and good night', '%*') AS 'A Classic';
What is returned?

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