Labs - Octavio Lopez Bautista

module-1/lab-advanced-mysql/your-code/Adv-mysql-Alter_Sol.sql

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+select database() publications ;
+select titles.title_id as Title_ID, authors.au_id as AUTHOR_ID , 
+sum(ROUND(titles.price * sales.qty *titles.royalty/100 *titleauthor.royaltyper/100,3)) as Total_Royalty,
+titles.advance as Advance,
+sum(ROUND(titles.price * sales.qty *titles.royalty/100 *titleauthor.royaltyper/100,3)) + titles.advance as Profits
+FROM authors
+Join titleauthor on titleauthor.au_id = authors.au_id
+Join titles on titles.title_id = titleauthor.title_id
+Join sales on sales.title_id = titles.title_id
+group by authors.au_id

module-1/lab-advanced-mysql/your-code/Adv-mysql-Step 1.sql

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+select database() publications ;
+select titles.title_id as  'Title ID', authors.au_id as 'AUTHOR ID' , 
+sum(ROUND(titles.price * sales.qty * titles.royalty / 100 * titleauthor.royaltyper / 100,3)) as 'Royalty for each author'
+FROM authors
+Join titleauthor on titleauthor.au_id = authors.au_id
+Join titles on titles.title_id = titleauthor.title_id
+Join sales on sales.title_id = titles.title_id
+group by authors.au_id

module-1/lab-advanced-mysql/your-code/Adv-mysql-Step 2.sql

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+select database() publications ;
+select titles.title_id as  'Title ID', authors.au_id as 'AUTHOR ID' , 
+sum(ROUND(titles.price * sales.qty * titles.royalty / 100 * titleauthor.royaltyper / 100,3)) as 'Royalty for each author',
+titles.title as 'Aggregates royalties for each title for each author'
+FROM authors
+Join titleauthor on titleauthor.au_id = authors.au_id
+Join titles on titles.title_id = titleauthor.title_id
+Join sales on sales.title_id = titles.title_id
+group by titles.title_id

module-1/lab-advanced-mysql/your-code/Adv-mysql-Step3.sql

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+select database() publications ;
+create temporary table Authors_Profits_helper
+select titles.title_id as Title_ID, authors.au_id as AUTHOR_ID , 
+sum(ROUND(titles.price * sales.qty *titles.royalty/100 *titleauthor.royaltyper/100,3)) as Total_Royalty,
+titles.advance as Advance
+FROM authors
+Join titleauthor on titleauthor.au_id = authors.au_id
+Join titles on titles.title_id = titleauthor.title_id
+Join sales on sales.title_id = titles.title_id
+group by authors.au_id;
+select AUTHOR_ID, (Total_Royalty+Advance) as Profits from Authors_Profits_helper