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Introduction to SQL
Here you can access the books
table used in the course.
Take Notes
Add notes about the concepts you've learned and SQL cells with queries you want to keep.
Rows= Records Columns = Fields
VARCHART for long texts fields INT for long numbers up to 2B NUMERIC for long numbers with decimals up to 32 after the decimal
- brings all the data in the table Make lowercases the fields of data that follows the Coding Command
Aliasing: renames columns. Should have AS Distinct: to show no repeat values. Should have DISTINCT View: refers to a table that is the result of a saved SQL SELECT statement. The Query is stored. Should have CREATE VIEW
Add your notes here
DataFrameavailable as
books
variable
-- Add your own queries here
SELECT *
FROM books
Explore Datasets
Use the books
table to explore the data and practice your skills!
- Select only the
title
column. - Alias the
title
column asbook_title
. - Select the distinct author names from the
author
column. - Select all records from the table and limit your results to 10.