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AdventureWorks Database: Returns all rows and a subset of the columns

SQL Query - AdventureWorks: Exercise-3 with Solution

3. From the following table write a query in SQL to return all rows and a subset of the columns (FirstName, LastName, businessentityid) from the person table in the AdventureWorks database. The third column heading is renamed to Employee_id. Arranged the output in ascending order by lastname.

Sample table: person.person


Click to view Full table

Sample Solution:

SELECT firstname, lastname, businessentityid as Employee_id  
FROM person.person AS e  
ORDER BY lastname;

Sample Output:

firstname               |lastname              |employee_id|
------------------------+----------------------+-----------+
Syed                    |Abbas                 |        285|
Catherine               |Abel                  |        293|
Kim                     |Abercrombie           |         38|
Kim                     |Abercrombie           |        295|
Kim                     |Abercrombie           |       2170|
Sam                     |Abolrous              |       2357|
Hazem                   |Abolrous              |        211|
Humberto                |Acevedo               |        297|
Gustavo                 |Achong                |        291|
Pilar                   |Ackerman              |        299|
Pilar                   |Ackerman              |        121|
Luke                    |Adams                 |      16884|
Adam                    |Adams                 |      16901|
Natalie                 |Adams                 |      10262|
Isabella                |Adams                 |      10261|
Morgan                  |Adams                 |      10259|
Kaitlyn                 |Adams                 |      10258|
...

SQL AdventureWorks Editor:

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SQL: Tips of the Day

T-SQL Cast versus Convert?

CONVERT is SQL Server specific, CAST is ANSI.

CONVERT is more flexible in that you can format dates etc. Other than that, they are pretty much the same. If you don't care about the extended features, use CAST.

Ref : https://bit.ly/3VKT5M8