Book (Practical) Computer The easiest SQL introduction class Database

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Computer
You will learn the basics and operations of databases and SQL with this one volume. There are two types of instructions in SQL : the "reading" reference system (SELECT) and the "writing" update system (INSERT, UPDATE, DELETE). "Using a database" means "making use of data in business and daily life." Therefore, it is most important to master how to use "SELECT" to search for data. Therefore, this book focuses on the use of the reference system. Of course, INSERT, UPDATE, and DELETE, which register, update, and delete data, are used to keep the contents of the database up-to-date and correct, and they are also important. This book explains the basic use of update SQL. The SQL to be mastered is explained in three steps : "SQL Syntax", "Samples (example sentences)", and "Practice questions". This book explains the basic use of update SQL. The SQL to be mastered is explained in three steps : "SQL Syntax", "Examples (example sentences)", and "Practice questions". It is ideal for beginners because you can learn in a step-by-step manner. In addition, the key points in the text are summarized with the "Important!" mark so you can understand the key points at a glance. In addition, the important points in learning SQL are summarized in columns. This book is ideal for beginners who want to start with a database from 0, engineers who want to learn SQL that can be used for work, sales and marketers who want to be able to write queries to retrieve data that can be used for presentations and customer proposals by yourself. It is ideal for people who want to start learning SQL. It is ideal for beginners who