Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Exercise 1 : Find the number of unique dates included in the data. The name of the file for this exercise should be hw

Exercise 1:
Find the number of unique dates included in the data. The name of the file for this
exercise should be "hw01-01.sql" and it should be done in a single SQL SELECT query.
The answer should be 7,517.

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Intelligent Databases Technologies And Applications

Authors: Zongmin Ma

1st Edition

1599041219, 978-1599041216

More Books

Students also viewed these Databases questions

Question

Identify several examples of ethical investing and SRI.

Answered: 1 week ago

Question

Please help me evaluate this integral. 8 2 2 v - v

Answered: 1 week ago

Question

Describe the appropriate use of supplementary parts of a letter.

Answered: 1 week ago