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Updated Assignment01 - Querying Sorting Filtering.sql #2

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Updated Assignment01 - Querying Sorting Filtering.sql #2

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56 changes: 47 additions & 9 deletions ... — SQL/Class01 - Querying Sorting Filtering/Assignment01 - Querying Sorting Filtering.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,10 @@
-- ============================================================

-- Write your query below:

SELECT first_name, last_name, city, phone
FROM sales.customers
WHERE state = 'CA'
AND phone IS NOT NULL;



Expand All @@ -27,7 +30,10 @@
-- ============================================================

-- Write your query below:

SELECT product_id, product_name, model_year, list_price
FROM production.products
ORDER BY model_year DESC,
list_price ASC;



Expand All @@ -41,11 +47,15 @@
-- ============================================================

-- Part a:

SELECT TOP 5 product_name,list_price
FROM production.products
ORDER BY list_price DESC;

-- Part b:


SELECT TOP 5 PERCENT *
FROM production.products
ORDER BY list_price ASC;


-- ============================================================
Expand All @@ -59,14 +69,27 @@
-- ============================================================

-- Page 1:

SELECT *
FROM production.products
ORDER BY list_price DESC
OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY;

-- Page 2:

SELECT *
FROM production.products
ORDER BY list_price DESC
OFFSET 10 ROWS FETCH NEXT 10 ROWS ONLY;


-- Page 3:


SELECT *
FROM production.products
ORDER BY list_price DESC
OFFSET 20 ROWS FETCH NEXT 10 ROWS ONLY;



-- ============================================================
Expand All @@ -81,15 +104,25 @@
-- ============================================================

-- Part a:

SELECT DISTINCT state
FROM sales.customers
ORDER BY state ASC;

-- Part b:

-- b) Unique combinations of state and city
SELECT DISTINCT state,
city
FROM sales.customers
ORDER BY state ASC,
city ASC;

-- Part c:

-- c) Number of unique model years


SELECT DISTINCT model_year
FROM production.products
ORDER BY model_year;

-- ============================================================
-- Question 6 — Logical Operators (AND / OR)
Expand All @@ -102,4 +135,9 @@
-- Hint: use parentheses to control the order of evaluation.
-- ============================================================

-- Write your query below:
-- WritSELECT product_id,
SELECT product_id, product_name, brand_id, category_id, list_price
FROM production.products
WHERE list_price BETWEEN 500 AND 1500
AND (model_year = 2019 OR model_year = 2020)
ORDER BY list_price ASC;