
Explore the fundamentals of databases, SQL basics, CRUD operations, relational design, keys, and normalization in a practical four-week course.
Understand databases as organized collections of data that store customers, transactions, and profiles, and learn the structure: tables, rows, columns, attributes, records, primary key, and data types.
Explore relational, non-relational, in-memory, cloud, graph, and time series databases with examples such as MySQL, MongoDB, Redis, Neo4j, InfluxDB, and practical use cases from banking to social networks and monitoring.
SQL, the structured query language, powers relational databases such as MySQL, PostgreSQL, Oracle, and Microsoft SQL Server. Learn data retrieval, data manipulation, data definition, and data control commands.
Explore sql data types, including char and varchar2, number (precision and scale), date, and large objects like clob and blob, and understand fixed vs variable memory allocation.
Learn how to create databases with the create database command and drop them with the drop database command, including syntax, naming rules, backups, and required permissions.
learn how to create a table with sql create table syntax, define columns and data types, and use insert statements with or without column names to add records.
Explore how the alter table statement changes an existing table by adding, deleting, or modifying columns, renaming tables or columns, and adjusting constraints and data types.
Learn update and delete data in sql: modify existing records with the update statement using single or multiple columns and a where clause, and remove rows with delete.
Apply SQL arithmetic operators to numerical data in tables using select queries. Use addition, subtraction, multiplication, division, and modulus in select and where clauses to compute salaries, allowances, and taxes.
Explore SQL comparison operators to filter records in the where clause: equality, inequality, greater than, greater than or equal to, less than, and less than or equal to.
Explore sql clauses, including where, order by, distinct, and having, to filter, sort, and retrieve data in invoices and employee tables.
Explore database schema concepts, including physical, logical, and view schemas. Understand how primary and foreign keys define table relationships and constraints.
Explore keys in SQL to uniquely identify records and link tables using primary keys, foreign keys, and candidate keys while understanding referential integrity.
Learn how database normalization reduces redundancy and anomalies by organizing data into 1NF, 2NF, and 3NF, using atomic values and primary and foreign keys.
Are you ready to unlock the power of data? In today’s world, databases are the backbone of every business, application, and technology. "Introduction to Databases" is your gateway to mastering the foundational concepts and skills you need to work with databases effectively, whether you're a student, aspiring data professional, or developer. It is designed to take you from the basics to practical proficiency, equipping you with essential skills to manage and analyze data efficiently.
In this course, you'll:
Demonstrate a working knowledge of the concepts and principles that shows how databases work.
Identify and explain the different types of core technology and management systems used in databases
Identify and interpret basic SQL statements and commands
Manipulate records in a database with the use of SQL statements and commands - Outline alternatives to SQL
plan and design a simple relational database system
This course is designed with beginners in mind, offering step-by-step guidance and interactive lessons to ensure you grasp every concept thoroughly. No prior experience with databases is required—just a willingness to learn and grow!
By the end of the course, you’ll have the knowledge and skills to design and manage databases, write efficient SQL queries, and understand how databases drive applications and decision-making.
Join now and take the first step toward becoming a database expert!