PostgreSQL in 100 Seconds

The video provides a concise overview of PostgreSQL, highlighting its history, features, and unique aspects like being an object-relational database. It covers PostgreSQL's extensibility, support for various languages, and its robust ecosystem of extensions. The tutorial guides viewers on setting up PostgreSQL, creating custom data types, and performing data manipulation. It also explains how to establish relationships between tables using primary and foreign keys.

What makes PostgreSQL different from other relational databases?

• It does not support transactions.

• It is an object-relational database with custom data types.

• It is not ACID compliant.

• It uses a different query language.

What is the purpose of multiversion concurrency control in PostgreSQL?

• To prevent any transaction from accessing the database.

• To ensure transactions are not ACID compliant.

• To provide each transaction a snapshot of the database.

• To allow only one transaction at a time.

Which of the following is NOT a language supported by PostgreSQL for stored procedures?

• C

• Java

• SQL

• Python

What is the first step in getting started with PostgreSQL?

• Creating a join query.

• Downloading and installing it locally or using a cloud database.

• Creating a custom data type.

• Writing a complex query.

How can you model unstructured data in PostgreSQL?

• Using arrays only.

• Using JSON data types and H store extensions.

• Using only tables and rows.

• Using only primary keys.