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MySQL 8 Cookbook

You're reading from   MySQL 8 Cookbook Over 150 recipes for high-performance database querying and administration

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Product type Paperback
Published in Jan 2018
Publisher
ISBN-13 9781788395809
Length 446 pages
Edition 1st Edition
Tools
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Author (1):
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Karthik Appigatla Karthik Appigatla
Author Profile Icon Karthik Appigatla
Karthik Appigatla
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Toc

Table of Contents (15) Chapters Close

Preface 1. MySQL 8 - Installing and Upgrading 2. Using MySQL FREE CHAPTER 3. Using MySQL (Advanced) 4. Configuring MySQL 5. Transactions 6. Binary Logging 7. Backups 8. Restoring Data 9. Replication 10. Table Maintenance 11. Managing Tablespace 12. Managing Logs 13. Performance Tuning 14. Security

Selecting data


You have inserted and updated data in the tables. Now it is time to learn how to retrieve information from the database. In this section, we will discuss how to retrieve data from the sample employee database that we have created.

There are many things that you can do with SELECT. The most common use cases will be discussed in this section. For more details on syntax and other use cases, refer to https://dev.mysql.com/doc/refman/8.0/en/select.html.

How to do it...

Select all data from the departments table of the employee database. You can use an asterisk (*) to select all columns from a table. It is not recommended to use it, you should always select only the data you need:

mysql> SELECT * FROM departments;
+---------+--------------------+
| dept_no | dept_name          |
+---------+--------------------+
| d009    | Customer Service   |
| d005    | Development        |
| d002    | Finance            |
| d003    | Human Resources    |
| d001    | Marketing          |
| d004...
You have been reading a chapter from
MySQL 8 Cookbook
Published in: Jan 2018
Publisher:
ISBN-13: 9781788395809
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