Lesson 15: Performance Optimization
By the end of this lesson, you will be able to: Analyze query performance using EXPLAIN Optimize database indexes for better performance Write efficient SQL queries Understand query execution plans Implement database tun
阅读文章 →Lesson 16: SQLAlchemy ORM Basics
By the end of this lesson, you will be able to: Understand Object-Relational Mapping (ORM) concepts Create SQLAlchemy models and relationships Perform CRUD operations using the ORM Handle database sessions and transactio
阅读文章 →Lesson 17: Advanced SQLAlchemy
By the end of this lesson, you will be able to: Use advanced SQLAlchemy features and patterns Implement complex relationships and inheritance Work with hybrid properties and methods Use SQLAlchemy events and hooks Implem
阅读文章 →Lesson 18: Window Functions, CTEs and Transactions
By the end of this lesson, you will be able to: Use OVER (PARTITION BY … ORDER BY …) to compute rankings, running totals, moving averages and row-to-row differences without collapsing rows Choose between ROW_NUMBER, RANK
阅读文章 →Create New User
Example: create user nelson with password MyStrongPass!23
阅读文章 →Exercise Solutions
This directory contains complete solutions for all the exercises in the SQL learning course.
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