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1 maj 2023 · That’s all in this list of Free SQL books for beginners and experienced developers. You can download these books as free PDF or read them online as well.
Learning SQL eBook (PDF) Download this eBook for free. Chapters. Chapter 1: Getting started with SQL. Chapter 2: ALTER TABLE. Chapter 3: AND & OR Operators. Chapter 4: Cascading Delete. Chapter 5: CASE. Chapter 6: Clean Code in SQL. Chapter 7: Comments. Chapter 8: Common Table Expressions. Chapter 9: CREATE Database. Chapter 10: CREATE FUNCTION.
PostgreSQL with the popular JSON data interchange format. Learning SQL doesn’t have to be dry and complicated. Practical SQL delivers clear examples with an easy-to-follow approach to teach you the tools you need to build and manage your own databases.
Whether you are a DevOps/SysOps engineer, developer, or just a Linux enthusiast, this free intro to SQL will help you learn the basics and start using relational databases for your SysOps, DevOps, and Dev projects.
Let's Get Started Week 1 introduces SQL from a historical and theoretical perspective. The first statement you learn about is the SELECT statement, which enables you to retrieve data from the database based on various user-specified options. Also during Week 1 you study SQL functions, query joins, and SQL subqueries (a query within a query).
SQL Queries for Mere Mortals,Third Edition,provides a step-by-step,easy-to-read introduction to writing SQL queries. It includes hundreds of examples with detailed explanations. This book provides the tools you need to under-stand,modify,and create SQL queries.
1 cze 2021 · Fetch all names that start with any letter followed by 'atherine': SELECT name FROM names WHERE name LIKE '_atherine'; Fetch all names that end with 'a': SELECT name FROM names WHERE name LIKE '%a'; USEFUL FUNCTIONS. Get the count of characters in a string: SELECT LENGTH('LearnSQL.com');-- result: 12 Convert all letters to lowercase: SELECT ...
