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Troubleshooting Guide: Windows 11 Taskbar Not Showing - How to Fix It

  If your Windows 11 taskbar is not showing, you can try several troubleshooting steps to resolve the issue. Here are some potential solutions you can try:

Mastering Conditional Logic in SQL Server: The CASE Statement Demystified

 In SQL Server, you can use the CASE statement to perform conditional logic within a SELECT statement. The CASE statement allows you to define multiple conditions and their corresponding actions.

Here's the basic syntax for using the CASE statement in a SELECT statement:

sql
SELECT column1, column2, CASE WHEN condition1 THEN result1 WHEN condition2 THEN result2 ELSE result3 END AS column_alias FROM your_table

Let's break down the syntax:

  • column1, column2, etc.: These are the columns you want to retrieve in your SELECT statement.
  • CASE: Begins the CASE statement.
  • WHEN condition1 THEN result1: Specifies the first condition and its corresponding result. If the condition evaluates to true, the result1 value will be returned.
  • WHEN condition2 THEN result2: Specifies the second condition and its corresponding result. If the condition evaluates to true, the result2 value will be returned.
  • ELSE result3: Specifies the default result if none of the conditions evaluate to true.
  • END: Ends the CASE statement.
  • AS column_alias: Assigns an alias to the column generated by the CASE statement.

Here's an example that demonstrates the usage of the CASE statement in a SELECT statement:

sql
SELECT OrderID, OrderDate, CASE WHEN TotalAmount > 1000 THEN 'High' WHEN TotalAmount > 500 THEN 'Medium' ELSE 'Low' END AS OrderPriority FROM Orders

In this example, the SELECT statement retrieves the OrderID and OrderDate columns from the Orders table. The CASE statement checks the value of the TotalAmount column for each row and assigns the appropriate priority ('High', 'Medium', or 'Low') based on the conditions specified.

Remember to replace your_table with the actual name of your table and adjust the conditions and results in the CASE statement according to your requirements.

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