Added answers from Ivy

module-1_labs/LABS_sql_selection.sql

@@ -0,0 +1,120 @@
+
+-- Challenge 1
+
+SELECT 
+	client_id
+FROM bank.client
+WHERE district_id =1
+LIMIT 5;
+
+
+-- Challenge 2
+
+SELECT 
+	client_id
+FROM bank.client
+WHERE district_id =72
+ORDER BY client_id DESC
+LIMIT 1;
+
+
+-- Challenge 3
+
+DESC loan;
+
+SELECT 
+	amount
+FROM bank.loan
+ORDER BY amount
+LIMIT 3;
+
+
+-- Challenge 4
+
+SELECT 
+	loan.status
+FROM bank.loan
+GROUP BY loan.status
+ORDER BY loan.status;
+
+-- Challenge 5
+DESC loan;
+
+-- highest payment
+SELECT 
+	loan_id,
+	payments
+FROM  bank.loan
+ORDER BY payments DESC
+LIMIT 10;	
+
+-- lowest payment
+SELECT 
+	loan_id,
+	payments
+FROM  bank.loan
+ORDER BY payments 
+LIMIT 1;	
+
+-- Challenge 6
+SELECT 
+	account_id,
+	amount
+FROM bank.loan
+ORDER BY account_id
+LIMIT 5;
+
+-- Challenge 7
+
+SELECT
+	account_id
+FROM bank.loan
+WHERE 	duration = 60
+ORDER BY amount
+LIMIT 5;
+
+-- Challenge 8
+
+SELECT 
+	k_symbol
+FROM bank.order
+GROUP BY  k_symbol
+ORDER BY k_symbol;
+
+-- Challenge 9
+
+SELECT
+	order_id
+FROM bank.order
+WHERE account_id = 34;
+
+-- Challenge 10
+
+SELECT 
+	account_id
+FROM bank.order
+WHERE 
+	order_id >= 29540
+	AND order_id <= 29560
+GROUP BY account_id
+ORDER BY account_id;
+
+-- Challenge 11
+
+SELECT 
+	amount
+FROM bank.order
+WHERE 
+	account_to = 30067122;
+
+-- Challenge 12 
+
+SELECT 
+	trans_id,
+	trans.date,
+	trans.type,
+	amount
+FROM bank.trans
+WHERE account_id = 793
+ORDER BY trans.date DESC
+LIMIT 10;

module-1_labs/lab-advanced-mysql/your-code/solutions.sql → module-1_labs/lab-advanced-mysql/your-code/solutions1.sql

@@ -1,4 +1,67 @@
 -- Challenge 1
+<<<<<<< HEAD
+CREATE TEMPORARY TABLE royalty_sales (
+SELECT
+    s.title_id                                      AS Title_ID,
+    ta.au_id                                        AS Author_ID,
+    t.advance                                       AS Advance,
+    ta.royaltyper                                   AS Royaltyper,
+    (t.advance*ta.royaltyper/100)                   AS Splited_advance,
+    SUM(t.price*s.qty*t.royalty/100*ta.royaltyper/100) AS Royalty_per_sale
+FROM titles t
+    JOIN sales s
+    ON s.title_id = t.title_id
+    JOIN titleauthor ta
+    ON ta.title_id = t.title_id
+GROUP BY 1,2
+ORDER BY 5 DESC);
+
+SELECT
+    rs.Author_ID,
+    a.au_lname,
+    a.au_fname,
+    ROUND(SUM(Splited_advance)+SUM(Royalty_per_sale),2) AS Profit
+FROM royalty_sales rs
+    JOIN authors a
+    ON a.au_id = rs.Author_ID
+GROUP BY 1
+ORDER BY 4 DESC;
+
+
+
+
+-- Challenge 3
+
+CREATE TABLE most_profiting_authors (
+    WITH royalty_sales AS (
+        SELECT
+        s.title_id                                      AS Title_ID,
+        ta.au_id                                        AS Author_ID,
+        t.advance                                       AS Advance,
+        ta.royaltyper                                   AS Royaltyper,
+        (t.advance*ta.royaltyper/100)                   AS Splited_advance,
+        SUM(t.price*s.qty*t.royalty/100*ta.royaltyper/100) AS Royalty_per_sale
+        FROM titles t
+            JOIN sales s
+            ON s.title_id = t.title_id
+            JOIN titleauthor ta
+            ON ta.title_id = t.title_id
+        GROUP BY 1,2
+        ORDER BY 5 DESC)
+    SELECT
+        rs.Author_ID  AS "Author ID",
+        ROUND(SUM(Splited_advance)+SUM(Royalty_per_sale),2) AS Profits
+    FROM royalty_sales rs
+        JOIN authors a
+        ON a.au_id = rs.Author_ID
+    GROUP BY 1
+    ORDER BY 2 DESC
+    LIMIT 3);
+
+
+SELECT*
+FROM most_profiting_authors;
+=======
 
 -- Step 1
 select t.title_id, t.price, t.advance, t.royalty, s.qty, a.au_id, au_lname, au_fname, ta.royaltyper, (t.price * s.qty * t.royalty * ta.royaltyper / 10000) as ROYALTIES
@@ -70,3 +133,4 @@ inner join authors a on a.au_id = tmp2.au_id
 group by tmp2.au_id
 order by PROFITS desc
 limit 3;
+>>>>>>> upstream/master