Dvd rental postgres example

Load the DVD rental database using psql tool. PostgreSQL will create a new database named dvdrental. First, unzip and copy the DVD rental database file to a folder e. We can see, numbers and strings all can be concatenated together as mentioned above.

Okoh Anita How I analyzed DVD rental data with SQL Introduction I recently completed some training in Data Foundation facilitated by Bertelsmann’s School of Data Science (in partnership with Udacity).

For a personal project, I decided to analyze the database for a DVD rental company we will call Rent A Film. First, download the file and put it somewhere on your drive. The DVDRental Postgres Sample DB.

This will create the sample DB. Here are few of the objects from DVD rental database: tables. Many database systems provide sample databases with the product.

PGExercises provides a series of questions and explanations built on a single, simple dataset. Let’s set up a sample table for the demonstration.

The aim of this video is to import our first dataset, the DVD rental database. Restore the DB using pgAdmin. Let’s take a look at the following ER diagram, which is a part of the DVD rental sample database.

Each row in the filmtable may have zero or many rows in the inventorytable. I assume that you have already downloaded Postgres and set it up. We will be using the DVD rental database, which you can download here.

Write a query to find the number of jobs available in the employees table. Finally, you will need to track rentals. When a customer rents a tape, you will store the customer I tape I and rental date. As long as you store the customer I you can always retrieve the customer name. It has more than years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness.

Using sample data from a fictional DVD Rental company, we’re able to modify inventory levels via a mobile app or within Postgres and see those changes sync in realtime. It’s a simple example of how Realm can dramatically simplify making Postgres realtime for your applications. To start, I’ll create a couple of tables with some data from a mock DVD Rental database found here using CREATE TABLE AS (check out this blog post I wrote on CREATE TABLE AS) syntax.

Intro to Postgres Full Text Search. Note that I am assuming that rent _date and return_date are of type date (as their name implies). If they are timestamps you could create two variables and EXTRACT() the date of rental and return into those.

How to Create a DVD Rental Agreement. Each rental in the film table has an associated rental _duration column which represents the number of days that a DVD can be rented by a customer before it is considered late. In this example , you will exclude films that have a NULL value for the return_date and also convert the rental _duration to an INTERVAL type.

Providing the best articles and solutions for different problems in the best manner through my blogs is my passion. Importing Sample Database Into Postgres. If you need data for your Postgres , you can download the DVD rental sample database and import it.

To import the sample database, create a database in Postgres by running the following command either in psql or pgAdmin. See how with a few simple examples in this post… Note: All data, names or naming found within the database presented in this post, are strictly used for practice, learning, instruction, and testing purposes. The SELECT statement is the basic starting block for queries that read information out of the database. I will demonstrate example with Postgres DB.

To understand the problem, let’s look at the UserActivity table after running the script above.