List of lectures for the course SQL, 11 quest level on JavaRush

Intro to Data Joining: JOIN
SQL SELF
11 level,0 lecture
Learn how to join data from multiple tables using SQL JOIN. We'll break down the main types of joins, how to use them in real life, and check out some practical examples. This lecture will help you get comfy working with relational databases and building complex analytical queries.
Open
Basics of INNER JOIN
SQL SELF
11 level,1 lecture
Learn how the INNER JOIN operator works in SQL: syntax, examples, common mistakes, and real-life scenarios for joining tables. This article will help you confidently use INNER JOIN for analyzing and integrating data in relational databases.
Open
Using LEFT JOIN: including all data from the left table
SQL SELF
11 level,2 lecture
Learn how to use SQL LEFT JOIN to get all rows from the left table, even if there are no matches in the right one. Examples with students, products, and tips for handling NULL values.
Open
`RIGHT JOIN` and How to Use It
SQL SELF
11 level,3 lecture
Learn how the SQL RIGHT JOIN operator works: syntax, examples, how it’s different from LEFT JOIN, practical tasks, and common mistakes. Master efficient table joining in SQL!
Open
Full Data Merge with FULL OUTER JOIN
SQL SELF
11 level,4 lecture
Learn how to use FULL OUTER JOIN to combine data from two tables so you can see all the rows, even if they don't have a match. Examples, syntax, hands-on tasks, and tips for handling NULLs — all in this lecture!
Open