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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: )

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External Article

On Comparing Tables in SQL Server

  • Article

How do you compare two SQL tables? Every SQL Developer or DBA knows the answer, which is 'it depends'. It is not just the size of the table or the type of data in it but what you want to achieve. Phil Factor sets about to cover the basics and point out some snags and advantages to the various techniques.

2014-06-10

5,867 reads

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Question of the Day

UNISTR Basics

What does this code return in SQL Server 2025+? (assume the database has an appropriate collation)

SELECT UNISTR('Hello 4E16754C') AS 'A Classic';
A:   B:  

See possible answers