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SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems. Start learning SQL now » Examples in Each Chapter.
1 maj 2023 · Here is my list of some of the best books to learn SQL, which is absolutely free. You can either download their PDF version for offline reading, or you can read them online. 1. SQL Indexing and...
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.
This is an open-source introduction to SQL guide that will help you to learn the basics of SQL and start using relational databases for your SysOps, DevOps, and Dev projects. No matter if you are a DevOps/SysOps engineer, developer, or just a Linux enthusiast, you will most likely have to use SQL at some point in your career.
This book starts with a theoretical background to T-SQL querying and programming in Chapter 1, laying the foundations for the rest of the book, and basic coverage of creating tables and defining data integrity.
5 wrz 2023 · SQL Functions. At the end of the day, SQL is a programming language, and it's one that supports functions. We can use functions and aliases to calculate new columns in a query. This is similar to how you might use formulas in Excel. IIF function. In SQLite, the IIF function works like a ternary. For example:
25 paź 2023 · The book begins by helping you set up an SQL practice environment in SQLite; it goes on to cover some basic and advanced functions in SQL. It covers all the fundamental SQL query concepts (like SELECT, JOINS, and functions) as well as slightly more advanced concepts like subqueries and views.
