Learn about Apache Cassandra and its key scalable and reliable data management features.

cassandra.tar.gz

Apache Cassandra is an open-source, distributed NoSQL database recognized for its scalability, reliability, and continuous availability. The course explores the core concepts that drive these features, including distributed architecture, data modeling, CQL, table design, data types, tunable consistency, and the read/write path. 

Lessons combine theoretical insights with hands-on exercises, allowing you to execute CQL queries directly in your browser and view real-time results with no setup required. Additionally, each module concludes with a quiz to test your understanding of the material. 

By the end of this course, you’ll be equipped with the skills needed to use Cassandra for high-performance data management.

Introduction to Apache Cassandra

**(True or False)** The following table can be successfully created in Cassandra.

```
CREATE TABLE users_stats (
id int PRIMARY KEY,
name text,
views counter,
likes counter);
```

(True or False) The following table can be successfully created in Cassandra.
<pre><code>CREATE TABLE users_stats (
id int PRIMARY KEY,
name text,
views counter,
likes counter);
</code></pre>

**(Fill in the blank.)** Values of `counter` columns in Cassandra are _________.

(Fill in the blank.) Values of <code>counter</code> columns in Cassandra are _________.

What is the output of the following command given that `likes` is a `counter` column?
```
UPDATE instructor_stats SET likes = 17 WHERE instructor = ‘DataJek’;

What is the output of the following command given that <code>likes</code> is a <code>counter</code> column?
<pre><code>UPDATE instructor_stats SET likes = 17 WHERE instructor = ‘DataJek’;</code></pre>

**(Fill in the blank.)** ________ data type allows storing multiple values in a single column.

(Fill in the blank.) ________ data type allows storing multiple values in a single column.

**(Fill in the blank.)** Elements of a ________ collection may be updated or removed by specifying the index of the element to be updated/removed.


(Fill in the blank.) Elements of a ________ collection may be updated or removed by specifying the index of the element to be updated/removed.

Which collection data type incurs performance overhead?

Which collection data type incurs performance overhead?

**(Fill in the blank.)** In a `CREATE TYPE` statement, fields of a `UDT` are enclosed in ________.

(Fill in the blank.) In a <code>CREATE TYPE</code> statement, fields of a <code>UDT</code> are enclosed in ________.

**(Fill in the blank.)** In an `INSERT` statement, values of `UDT` fields are specified as field:value pairs enclosed in ________.

(Fill in the blank.) In an <code>INSERT</code> statement, values of <code>UDT</code> fields are specified as field:value pairs enclosed in ________.

**(Fill in the blank.)** Elements of a ________ data type are not named.

(Fill in the blank.) Elements of a ________ data type are not named.

**(True or False)** The value of a _single_ `tuple` element can be updated.


(True or False) The value of a single <code>tuple</code> element can be updated.

Assess your understanding of the various data types offered by Apache Cassandra.

Getting Started

Apache Cassandra Overview

Apache Cassandra Architecture

Apache Cassandra Data Modeling

Apache Cassandra Table

Apache Cassandra Data Types

Tunable Consistency

Apache Cassandra Read and Write Path

Wrap Up

Quiz: Apache Cassandra Data Types