diff --git a/02_activities/assignments/assignment1.sql b/02_activities/assignments/assignment1.sql index 2e89fa7af..78208c6be 100644 --- a/02_activities/assignments/assignment1.sql +++ b/02_activities/assignments/assignment1.sql @@ -5,20 +5,28 @@ --SELECT /* 1. Write a query that returns everything in the customer table. */ - +select * +FROM customer ; /* 2. Write a query that displays all of the columns and 10 rows from the cus- tomer table, sorted by customer_last_name, then customer_first_ name. */ - +SELECT * +FROM customer +ORDER BY customer_last_name,customer_first_name +LIMIT 10; --WHERE /* 1. Write a query that returns all customer purchases of product IDs 4 and 9. */ -- option 1 - +SELECT * +FROM customer_purchases +WHERE product_id =4 OR product_id =9; -- option 2 - +SELECT * +FROM customer_purchases +WHERE product_id IN (4,9); /*2. Write a query that returns all customer purchases and a new calculated column 'price' (quantity * cost_to_customer_per_qty), @@ -27,10 +35,15 @@ filtered by vendor IDs between 8 and 10 (inclusive) using either: 2. one condition using BETWEEN */ -- option 1 - - +SELECT * +,quantity * cost_to_customer_per_qty as price +FROM customer_purchases +where vendor_id >=8 AND vendor_id <=10; -- option 2 - +SELECT * +,quantity * cost_to_customer_per_qty as price +FROM customer_purchases +where vendor_id BETWEEN 8 AND 10; --CASE @@ -38,19 +51,36 @@ filtered by vendor IDs between 8 and 10 (inclusive) using either: Using the product table, write a query that outputs the product_id and product_name columns and add a column called prod_qty_type_condensed that displays the word “unit” if the product_qty_type is “unit,” and otherwise displays the word “bulk.” */ - +SELECT product_id, product_name +,CASE WHEN product_qty_type = 'unit' THEN 'unit' +ELSE 'bulk' END AS product_qty_type_condensed +FROM product; /* 2. We want to flag all of the different types of pepper products that are sold at the market. add a column to the previous query called pepper_flag that outputs a 1 if the product_name contains the word “pepper” (regardless of capitalization), and otherwise outputs 0. */ +SELECT product_id, product_name + +,CASE WHEN product_qty_type = 'unit' THEN 'unit' +ELSE 'bulk' END AS product_qty_type_condensed, + +CASE WHEN product_name like '%pepper%' THEN 1 +ELSE 0 END AS pepper_flag + +FROM product; + --JOIN /* 1. Write a query that INNER JOINs the vendor table to the vendor_booth_assignments table on the vendor_id field they both have in common, and sorts the result by vendor_name, then market_date. */ - +SELECT * +FROM vendor as v +INNER JOIN vendor_booth_assignments as vba +ON v.vendor_id = vba.vendor_id +ORDER BY vendor_name, market_date; @@ -60,6 +90,11 @@ vendor_id field they both have in common, and sorts the result by vendor_name, t /* 1. Write a query that determines how many times each vendor has rented a booth at the farmer’s market by counting the vendor booth assignments per vendor_id. */ +SELECT vendor_id +,COUNT (booth_number) +FROM vendor_booth_assignments +GROUP BY booth_number; + /* 2. The Farmer’s Market Customer Appreciation Committee wants to give a bumper @@ -68,7 +103,12 @@ of customers for them to give stickers to, sorted by last name, then first name. HINT: This query requires you to join two tables, use an aggregate function, and use the HAVING keyword. */ - +SELECT c.customer_first_name, c.customer_last_name +,sum(cp.quantity*cp.cost_to_customer_per_qty) as spent +FROM customer as c +INNER JOIN customer_purchases as cp ON c.customer_id = cp.customer_id +GROUP BY c.customer_first_name, c.customer_last_name +HAVING spent > 2000; --Temp Table /* 1. Insert the original vendor table into a temp.new_vendor and then add a 10th vendor: @@ -81,7 +121,12 @@ When inserting the new vendor, you need to appropriately align the columns to be -> To insert the new row use VALUES, specifying the value you want for each column: VALUES(col1,col2,col3,col4,col5) */ +CREATE TABLE temp.new_vendor AS +SELECT * +FROM vendor; +INSERT INTO new_vendor +VALUES(10, 'Thomass Superfood Store', 'a Fresh Focused store', 'Thomas', 'Rosenthal'); -- Date diff --git a/02_activities/assignments/images/Product&CustomerPurchase&Customer Diagram.png b/02_activities/assignments/images/Product&CustomerPurchase&Customer Diagram.png new file mode 100644 index 000000000..bc486af89 Binary files /dev/null and b/02_activities/assignments/images/Product&CustomerPurchase&Customer Diagram.png differ diff --git a/02_activities/assignments/images/Product&CustomerPurchases&Customer Diagram.drawio b/02_activities/assignments/images/Product&CustomerPurchases&Customer Diagram.drawio new file mode 100644 index 000000000..8b9ddb6a8 --- /dev/null +++ b/02_activities/assignments/images/Product&CustomerPurchases&Customer Diagram.drawio @@ -0,0 +1,45 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/02_activities/assignments/images/farmersmarket.db b/02_activities/assignments/images/farmersmarket.db new file mode 100644 index 000000000..4720f2483 Binary files /dev/null and b/02_activities/assignments/images/farmersmarket.db differ diff --git a/02_activities/assignments/images/farmersmarket.sqbpro b/02_activities/assignments/images/farmersmarket.sqbpro new file mode 100644 index 000000000..eba942125 --- /dev/null +++ b/02_activities/assignments/images/farmersmarket.sqbpro @@ -0,0 +1 @@ +
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