SQLite For Beginners - Learn SQL from Scratch

Explore the fundamentals of databases and relational database management systems, including data, entities, relationships, schemas, tables and primary keys, and learn indexing, views, sorting, security, and reporting.

Explore SQLite's zero-configuration, self-contained, portable relational database that runs inside applications across Windows, Linux, and Mac; learn its simple API and support for tables, views, and indexes.

Download the Windows pre-compiled SQLite binary from sqlite.org, extract it to a chosen folder, then use the command prompt to run sqlite3 and verify the installation (e.g., version 3.27.0).

Explore sqlite3 dot commands such as .databases and .tables to inspect databases and tables, connect to a database, and view results with select queries and output formatting.

Explore how SQLite assigns storage classes to values—null, text, numeric, floating point, and blob—guided by a column’s declared type and type affinity.

Create and manage SQLite databases, learn to attach and detach multiple databases, switch using the database option, and verify which databases are active.

Learn to create and drop tables in SQLite, and manage tables in a database. Practice inserting data, retrieving with select queries, and updating or deleting rows to maintain accurate records.

Learn to use the select statement in SQLite to fetch all data or specific columns from a table like media_types, and practice updating or deleting rows with where conditions.

Master arithmetic operators—addition, subtraction, multiplication, division, and remainder—and use where, group by, and order by clauses to query, group, and sort data while avoiding duplicates.

Learn SQLite comparison operators, including greater than, less than, not equal, and greater than or equal to, with examples filtering totals and excluding specific names like classical.

Explore SQLite logical operators, including between, in, not in, not between, like, glob, not exists, or, is, and the concatenation operator (||) to build precise SQL queries.

Explore bitwise operators in SQL, including the bitwise and operator, ones complement, left shift, and right shift, and see how they manipulate binary numbers and bits.

Learn to limit results with the limit clause, order by, group by and having, and remove duplicates using distinct, with examples from invoices items.

Learn how SQLite constraints enforce data integrity, including not null, unique, primary key, and check constraints. See how these constraints control data entry and schema during table creation and inserts.

Explore how to combine data from multiple tables in SQLite using cross join, inner join, and left outer join, with practical examples on employee, department, and country data.

Explore SQLite subqueries and use them with select, in, update, and delete statements. See practical examples filtering employees and copying data with insert into select.

Learn to use SQLite functions to analyze data, including count, max, min, average, sum, abs, upper, lower, length, and like for practical data processing.

Learn to create and manage triggers for insert, update, and delete events, log changes, and drop triggers; understand indexes, temporary aliases, and renaming tables to enhance SQLite data handling.

Learn how views provide restricted, readable data for reporting without altering underlying tables, and practice using view queries, date/time functions, and transactions with begin, commit, and rollback.