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The SQL Workshop

You're reading from   The SQL Workshop Learn to create, manipulate and secure data and manage relational databases with SQL

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Product type Paperback
Published in Dec 2019
Publisher Packt
ISBN-13 9781838642358
Length 288 pages
Edition 1st Edition
Languages
Concepts
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Authors (3):
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Prashanth Jayaram Prashanth Jayaram
Author Profile Icon Prashanth Jayaram
Prashanth Jayaram
Frank Solomon Frank Solomon
Author Profile Icon Frank Solomon
Frank Solomon
Awni Al Saqqa Awni Al Saqqa
Author Profile Icon Awni Al Saqqa
Awni Al Saqqa
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Toc

Table of Contents (13) Chapters Close

Preface 1. SQL Basics FREE CHAPTER 2. Manipulating Data 3. Normalization 4. The SELECT Statement 5. Shaping Data with the WHERE Clause 6. JOINS 7. Subqueries, Cases, and Views 8. SQL Programming 9. Security 10. Aggregate Functions 11. Advanced SQL Appendix

Retrieving All Columns of a Table

Consider the following scenario: A store manager wants to retrieve information about all the categories of items available in PACKT_ONLINE_SHOP in order to see where a new product fits in best. To retrieve a list of all the product categories, along with their details, run the following query:

use PACKT_ONLINE_SHOP;
SELECT * FROM ProductCategories;

After executing the preceding query, you'll see the following output:

Figure 4.3: The ProductCategories table

As shown in the preceding screenshot, the query has selected and retrieved all the records from all the columns of the ProductCategories table, which was taken from PACKT_ONLINE_SHOP.

Note

There are some cases where you can use the SELECT statement without needing to use the FROM part. For instance, to call a function, you only need to use the SELECT statement:

SELECT GETDATE();

We will discuss functions in further detail in the upcoming chapters of...

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