By: Muhammad Bilal
July 15, 2020
"Intermediate SQL" Course Review
By: Muhammad Bilal
July 15, 2020
SQL – The language of databases
SQL stands for “Structured Query Language,” often pronounced as “Sequel,” and it was developed for the sole purpose of interfacing with databases and sharing a vision of well-structured data in the era of technology. This course has been designed to improve your basic understanding of the concepts of well-structured data and the purpose of developing SQL.
Android and iOS phones that we use in our daily lives use SQL, and most of us are unaware of it. We cannot neglect the fact that this language has become a part of our daily life, directly or indirectly.
The future of learning SQL is still bright as it unlocks Data Science and many more careers for you, as discussed in this article. It is easy to learn, easy to interface with scripting languages, and greatly improves the dataset's visibility and usage, but is quite hard to master.
The author has a focused plan, which includes interesting topics like Database Engines, CRUD, DBMS, SQL Syntax, Environment Setup, Keys, Indexing, and whatnot. We will be exploring these terms in a detailed manner.
Data Engine and CRUD Model
As we all know, a database is an organized stack of information. Data Engine is a software that specializes in the management of datasets in a database. It has been an important part of the DBMS, which provides controls through pragmatic interactivity. It is based on the CRUD paradigm that is a set of four actions; Create, Read, Update, and Delete. It has such effectiveness that even NoSQL databases import SQL functionality to increase the efficiency of the systems.
How is RDBMS different from DBMS
The relational database stores data in the form of tables consisting of rows and columns instead of a single text file. In this arrangement, it is faster to locate, compare, and extract data from the existing table to make a new one into existence.
SQL Syntax Explanations
The author has focused on all of the aspects used in developing a database from scratch. The main topics covered under the course sections are: JOIN Statements, Unions, Modelling, Environment Setups, Seeding, Indexing, Clustered Indexing, Keys, Functions, Aggregate Functions, Triggers, Events, Types, Acumatica DB, Procedures, and Challenges.
Are there any practical examples discussed in the course?
Yes, the author has developed a database from scratch. The author has dedicated two sections of the course to the development of the database and two for SQL programming. Development is very different from programming SQL. It’s like comparing apples to oranges.
Why are Database Devs different from typical programmers?
A Database advancement/administrator ordinarily utilizes strategies that require a profound comprehension of information design, SQL, redundant frameworks, and authoritative capacities and linguistic structure of the particular database.
Future of Database Experts
The average salary for a position that requires SQL knowledge is about $92,500 in the US.
- Back-end Developer: A back-end developer is someone who develops and programs databases for web applications and interfaces.
- Database Administrator (DBA): These DBAs are responsible for data integrity and maintenance. DBA is the most valuable asset of the database team as he manages users who retrieve desired combinations of datasets from the databases.
- Data Analyst and Data Scientist: this role analyzes data looking for trends in particular datasets, whereas data scientists are tasked with handling data in greater sizes along with faster processing.
Keep Learning with Cybrary
The tools provided by the instructor during the course have effective value and can be practiced as one finishes the course. Understanding the concepts at the core will enable one to better program a database from the beginning on his own. If this course interests you, enroll in the desired career path right away.