SQL | Derived tables and CTEs exercise | Recursion - carnival menu using CTEs

This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.

You can learn how to do this exercise if you attend one of more of the courses listed below!

Software ==> SQL  (198 exercises)
Version ==> Any version of SQL Server
Topic ==> Derived tables and CTEs  (13 exercises)
Level ==> Harder than average
Classroom ==> Introduction to SQL  /  Fast-track SQL  /  Advanced SQL
Online ==> Introduction to SQL  /  Fast-track SQL  /  Advanced SQL
Before you can do this exercise, you'll need to download and unzip this file (if you have any problems doing this, click here for help).

You need a minimum screen resolution of about 700 pixels width to see our exercises. This is because they contain diagrams and tables which would not be viewable easily on a mobile phone or small laptop. Please use a larger tablet, notebook or desktop computer, or change your screen resolution settings.

The Carnival database contains  a table called tblMenu.  This contains all of the menus for a website:

SQL exercise - Derived tables and CTEs (image 1)

Each menu has an id number, and also contains within its record the id of its parent

Use a recursive CTE based on this table to show all of the menus, with breadcrumbs:

SQL exercise - Derived tables and CTEs (image 2)

This is what the results should look like!

Save this as Recursion using CTEs, then close it down.

You can unzip this file to see the answers to this exercise, although please remember this is for your personal use only.
This page has 0 threads Add post