Stairway to SQL Server Virtualization Level 4 - Building the Hyper-V VM
In this level of the Stairway to Server Virtualization, learn how to build a Hyper-V virtual machine for SQL Server.
Stairway to T-SQL DML Level 12: Using the MERGE Statement
The final level of this stairway looks at the MERGE statement in detail, focusing on how to perform insert, update and delete logic using the MERGE statement.
Stairway to T-SQL DML Level 3: Implementing a Relational Model in SQL Server
This level of the stairway details the creation of a relational database, as well as filling in some of the history of the relational database model.
Stairway to T-SQL: Beyond The Basics Level 1: The TOP Clause
The first topic in this stairway will be discussing the TOP clause. The TOP clause allows you to control the number of rows to be returned or affected by a query.
Stairway to T-SQL: Beyond The Basics Level 2: Writing Subqueries
In this level of the Beyond the T-SQL Basics stairway, we will be discussing the different aspects of a subquery.
Stairway to T-SQL: Beyond The Basics Level 4: Using Views to Simplify Your Query
This level discusses how to use a database VIEW to simplify your Transact-SQL(T-SQL) code. By understanding how to use a VIEW you will be able to better support writing T-SQL code to meet complex business requirements. In this article I will be discussing what a database VIEW is and then providing a number of examples to help you understand how you can use a VIEW to implement different coding scenarios.
Stairway to T-SQL: Beyond The Basics Level 5: Storing Data in Temporary Tables
There are times when retrieving data for complex business requirement requires you to temporarily store one or more results sets for a short period of time. Typically these temporary tables are stored in the scope of the current connection, but they may also need to be available across multiple connections.
Stairway to T-SQL: Beyond The Basics Level 6: Using the CASE Expression and IIF Function
There are times where you need to write a single T-SQL statement that is able to return different T-SQL expressions based on the evaluation of another expression. When you need this kind of functionality you can use the CASE expression or IIF function to meet this requirement. In this Stairway level Gregory Larsen reviews the CASE and IIF syntax and showing you examples of how the CASE expression and IIF function.
Stairway to T-SQL: Beyond The Basics Level 8: Coding Shortcuts using += and -= Operators
No one wants to use more keystrokes than they have to when they write a chunk of T-SQL code. To help with minimizing the number of characters a T-SQL developer needs to type the Microsoft team introduced three new shortcuts operators when they release SQL Server 2008. These shorts cuts are the String Concatenation, Add EQUALS, and the Subtract EQUALS operators.
Stairway to T-SQL: Beyond The Basics Level 9: Dynamic T-SQL Code
There times when you need to write T-SQL code that creates specific T-SQL Code and executes it. When you do this you are creating dynamic T-SQL code. When writing dynamic T-SQL you need to understand how dynamic code opens the possibilities for a SQL injection attack.
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Question of the Day
Detecting Characters
I have a SQL Server 2022 English default installation on a server. I want to detect if there are any upper case characters in rows and I have this code:
SELECT CustomerNameID,
CustomerName
FROM dbo.CustomerName
WHERE CustomerName = LOWER(CustomerName)
Here is the sample data I am testing with:
CustomerNameID CustomerName 1 John Smith 2 Sarah Johnson 3 MICHAEL WILLIAMS 4 JENNIFER BROWN 5 david jones 6 emily davis 7 Robert Miller 8 LISA WILSON 9 christopher moore 10 Amanda TaylorHow many rows are returned? See possible answers