Question
Write the following SQL statements to query the NDX table in the dbclass schema/database. Your SQL statement should display only the columns identified unless otherwise
Write the following SQL statements to query the NDX table in the dbclass schema/database. Your SQL statement should display only the columns identified unless otherwise specified. All statements require the GROUP BY clause.
1. Display the average PriorClose on Fridays grouped by TMonth and TYear. So this will be the average PriorClose on Fridays by month and year.
2. Display the average PriorClose grouped by TMonth and TYear.
3. Display the average Volume and average ChangeClose grouped by TYear and TMonth.
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PostgreSQL 14 Administration Cookbook Over 175 Proven Recipes For Database Administrators To Manage Enterprise Databases Effectively
Authors: Simon Riggs ,Gianni Ciolli
1st Edition
1803248971, 978-1803248974
