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Software ==>	Python (34 exercises)
Topic ==>	Linking to SQL Server (1 exercise)
Level ==>	Relatively easy
Subject ==>	Python training

List out long films which won more than 7 Oscars from a SQL Server database

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.

Before you can do this exercise, you'll need to download and unzip this file. If you want to download the SQL Server database that this yields:

Go into SQL Server Management Studio;
Open the SQL file you've just unzipped (you can press CTRL + O to do this); then
Execute this script.

This will generate the database that you'll need to use in order to do this exercise (remember to refresh your list of databases to see it!). Note that any files provided are only to be used for exercises published on this website, and may not be reused or distributed in any form without the prior written permission of Wise Owl.

Create a Python program called Listing films.py. Type in a variation of the following code to link to the SQL Server Movies database in the above folder:

# the main Python module to link to SQL Server

import pyodbc

# connect to the movies database (this uses Windows

# authentication and assumes your SQL Server instance

# is called sql2019 on your currnet computer)

movies_database_connnection = pyodbc.connect(

r"Driver=SQL Server;"

r"Server=.\sql2019;"

r"Database=Movies_01;"

r"Trusted_Connection=yes;"

)

# create an SQL command to show 100 longest films

sql_query = "SELECT Title, RunTimeMinutes, OscarWins FROM Film ORDER BY RunTimeMinutes DESC"

# create a cursor to get this data

movies_cursor = movies_database_connnection.cursor()

movies_cursor.execute(sql_query)

# for each of these 100 longest films, show ones winning more than 7 Oscars

films = movies_cursor.fetchmany(100)

You can copy and paste this code into any Python program which you write whenever you want to link to a SQL Server database.

Now extend the program so that - out of the 100 longest films - it lists out those which won more than 7 Oscars:

Correlation in this case IS causation: long films really do win more Oscars!

Remember that no Intellisense will help you to complete your commands when referencing fields from an ODBC connection - it's up to you to remember what the columns are called, and type in their names correctly.

Save your program and 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.

You can find other training resources for the subject of this exercise here:

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EXERCISE TOPIC

PYTHON EXERCISES

PYTHON EXERCISES

List out long films which won more than 7 Oscars from a SQL Server database

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