List of lectures for the course SQL, 42 quest level on JavaRush

Query Optimization Based on Plan Analysis: EXPLAIN ANALYZE
SQL SELF
42 level,0 lecture
Learn how to analyze and speed up your SQL queries in PostgreSQL using EXPLAIN ANALYZE: common issues, optimization examples, working with indexes, and session settings. Practical tips to boost your database performance.
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Intro to pg_stat_statements: Installing and Setting Up the Extension
SQL SELF
42 level,1 lecture
The pg_stat_statements extension is a powerful tool for monitoring and analyzing query performance in PostgreSQL. In this lecture, you'll learn how to install and configure the extension, as well as how to use it to find slow and frequently executed queries to boost your database's efficiency.
Open
Tracking Slow Queries with pg_stat_statements
SQL SELF
42 level,2 lecture
Learn how to use the PostgreSQL extension pg_stat_statements to find and optimize slow SQL queries. This article gives you analysis examples, optimization tips, and practical advice to boost your database performance.
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Using pg_stat_statements to Analyze Index and Filter Usage
SQL SELF
42 level,3 lecture
Learn how to use the pg_stat_statements extension to analyze the efficiency of indexes and filters in PostgreSQL, spot unused or inefficient indexes, and optimize your queries to boost your database performance.
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Comparative Analysis of EXPLAIN ANALYZE and pg_stat_statements
SQL SELF
42 level,4 lecture
Find out what’s the difference between EXPLAIN ANALYZE and pg_stat_statements tools in PostgreSQL, when and how to use them to hunt down and optimize slow queries, and how to avoid common mistakes when analyzing database performance.
Open