SQL in 24 Hours,Sams Teach Yourself,7th Edition


SQL in 24 Hours,Sams Teach Yourself
Author: Ryan Stephens
Publisher finelybook 出版社: Sams Publishing; 7th edition (December 23,2021)
Language 语言: English
Print Length 页数: 624 pages
ISBN-10: 0137543123
ISBN-13: 9780137543120


Book Description
By finelybook

In just 24 lessons of one hour or less,Sams Teach Yourself SQL in 24 Hours helps you use SQL to build effective databases,efficiently retrieve data,and manage everything from performance to security.
This Seventh Edition is thoroughly revised and reorganized for faster learning and a deeper understanding of modern SQL development. Based on standardized SQL throughout,it teaches using new sample code based on the free,easy-to-use Oracle Database Express (XE). You’ll find more hands-on examples than ever,culminating in an all-new Bonus Exercises Workshop with even more real-world practice.
This guide’s straightforward,step-Author: -step approach shows you how to work with database structures,objects,queries,tables,and more. In just hours,you will be applying advanced techniques,from transactions and joins to complex data retrieval using views and subqueries.
Step-Author: -step instructions carefully walk you through the most common SQL tasks.
Practical,hands-on examples show you how to apply what you learn.
Quizzes and exercises help you test your knowledge and stretch your skills.
Notes and tips point out shortcuts and solutions.
Learn how to…
Master core relational database concepts,SQL concepts,and language components
Clearly understand your data
Set up databases and plan efficient database designs
Define entities and relationships,establish data structures,and create database objects
“Normalize” raw databases into logically organized tables
Edit relational data and tables and manage transactions
Write effective,well-performing queries
Categorize,summarize,sort,group,and restructure data
Work with dates and times
Join tables in queries,use subqueries,and combine multiple queries
Optimize performance with indexes and other techniques
Administer databases and manage users
Secure databases and data

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