List of lectures for the course SQL, 36 quest level on JavaRush

Arrays vs JSONB Comparison
SQL SELF
36 level,0 lecture
Find out how arrays and JSONB differ in PostgreSQL, when and what to use, and how to pick the best data structure for your needs. Examples, comparisons, best practices, and performance tips.
Open
Array Comparison and Filtering: =, @>, <@, &&
SQL SELF
36 level,1 lecture
Learn how to compare and filter arrays in PostgreSQL using the =, @>, <@, and && operators. Real-life examples, common mistakes, and tips for optimizing your queries when working with arrays.
Open
Array Indexing: Creating GIN and BTREE Indexes
SQL SELF
36 level,2 lecture
Learn how to efficiently index arrays in PostgreSQL using GIN and BTREE indexes. We'll break down when to use each type of index, show some SQL query examples, and talk about how indexes impact performance.
Open
Examples of Advanced Queries with Arrays: Aggregation, Filtering, Sorting
SQL SELF
36 level,3 lecture
Check out some hands-on techniques for working with arrays in SQL: grouping data, filtering by contents, and sorting elements right inside arrays. See how you can use these tricks for analytics, reports, and personalizing data with real-world examples.
Open
Common Mistakes When Working with Arrays and How to Avoid Them
SQL SELF
36 level,4 lecture
In this lecture, you'll learn about the most common mistakes when working with arrays in PostgreSQL, how to avoid them, and how to optimize working with massive data. Practical examples and tips will help you dodge typical traps and make your SQL queries more reliable and faster.
Open