Update README.md

README.md

@@ -30,27 +30,42 @@ clone https://github.com/pthom/northwind_psql.git
 
 * Clear query windows
 
-Answer the following data queries. Keep track of the SQL you write by pasting it into this document under its appropriate header below. You will be submitting that through the regular fork, change, pull process.
+Answer the following data queries. 
+Keep track of the SQL you write by pasting it into this document under its appropriate header below. 
+You will be submitting that through the regular fork, change, pull process.
 
 
 ### find all customers that live in London. Returns 6 records.
 > This can be done with SELECT and WHERE clauses
+SELECT * FROM public.customers
+WHERE city = 'London'
 
 
 ### find all customers with postal code 1010. Returns 3 customers.
 > This can be done with SELECT and WHERE clauses
+SELECT postal_code
+FROM customers
+WHERE postal_code LIKE '1010'
 
 
 ### find the phone number for the supplier with the id 11. Should be (010) 9984510.
 > This can be done with SELECT and WHERE clauses
+SELECT * FROM public.suppliers
+WHERE supplier_id = 11
 
 
 ### list orders descending by the order date. The order with date 1998-05-06 should be at the top.
 > This can be done with SELECT, WHERE, and ORDER BY clauses
+SELECT order_date
+FROM public.orders
+ORDER BY order_date DESC
 
 
 ### find all suppliers who have names longer than 20 characters. You can use `length(company_name)` to get the length of the name. Returns 11 records.
 > This can be done with SELECT and WHERE clauses
+SELECT company_name, length(company_name)
+FROM public.suppliers
+WHERE length(company_name) > 20
 
 
 ### find all customers that include the word 'MARKET' in the contact title. Should return 19 records.
@@ -59,36 +74,61 @@ Answer the following data queries. Keep track of the SQL you write by pasting it
 > Don't forget the wildcard '%' symbols at the beginning and end of your substring to denote it can appear anywhere in the string in question
 
 > Remember to convert your contact title to all upper case for case insenstive comparing so upper(contact_title)
+SELECT contact_title
+FROM public.customers
+where UPPER(contact_title) 
+LIKE '%MARKET%'
 
 
 ### add a customer record for   
-* customer id is 'SHIRE'
-* company name is 'The Shire'
-* contact name is 'Bilbo Baggins'
-* the address is '1 Hobbit-Hole'
-* ths city is 'Bag End'
-* the postal code is '111'
-* the country is 'Middle Earth'
+* customer_id is 'SHIRE'
+* company_name is 'The Shire'
+* contact_name is 'Bilbo Baggins'
+* address is '1 Hobbit-Hole'
+* city is 'Bag End'
+* postal_code is '111'
+* country is 'Middle Earth'
 > This can be done with the INSERT INTO clause
 
+INSERT INTO customers(customer_id, company_name, contact_name, address, city, postal_code, country )
+	VALUES('SHIRE', 'The Shire', 'Bilbo Baggins', '1 Hobbit-Hole', 'Bag End', '111', 'Middle Earth')
+
 
 ### update _Bilbo Baggins_ record so that the postal code changes to _"11122"_.
 > This can be done with UPDATE and WHERE clauses
+UPDATE customers
+set postal_code = '11122'
+WHERE postal_code = '111'
 
 
 ### list orders grouped by customer showing the number of orders per customer. _Rattlesnake Canyon Grocery_ should have 18 orders.
 > This can be done with SELECT, COUNT, JOIN and GROUP BY clauses. Your count should focus on a field in the Orders table, not the Customer table
 
 > There is more information about the COUNT clause on [W3 Schools](https://www.w3schools.com/sql/sql_count_avg_sum.asp)
 
+SELECT ship_name, count(*)
+from orders
+Group BY ship_name
+
 
-### list customers names and the number of orders per customer. Sort the list by number of orders in descending order. _Save-a-lot Markets should be at the top with 31 orders followed by _Ernst Handle_ with 30 orders. Last should be _Centro comercial Moctezuma_ with 1 order.
+### list customers names and the number of orders per customer. Sort the list by number of orders in descending order. 
+_Save-a-lot Markets should be at the top with 31 orders followed by _Ernst Handle_ with 30 orders. Last should be _Centro comercial Moctezuma_ with 1 order.
 > This can be done by adding an ORDER BY clause to the previous answer
 
+SELECT ship_name, count(*)
+from orders
+Group BY ship_name
+Order By count DESC
+
 
 ### list orders grouped by customer's city showing number of orders per city. Returns 69 Records with _Aachen_ showing 6 orders and _Albuquerque_ showing 18 orders.
 > This is very similar to the previous two queries, however, it focuses on the City rather than the CustomerName
 
+SELECT ship_city, count(*)
+from orders
+Group BY ship_city
+Order By count DESC
+
 
 ## Data Normalization
 
@@ -102,6 +142,37 @@ Take the following data and normalize it into a 3NF database.  You can use the w
 | Bob         | Joe      | Horse    |            |            |            |            | No          | No           |
 | Sam         | Ginger   | Dog      | Miss Kitty | Cat        | Bubble     | Fish       | Yes         | No           |
 
+person
+
+| owner_id | owner_name  | fenced_yard | city_dweller |
+|----------|-------------|-------------|--------------|
+| 1        | Jane        | No          | Yes          |
+| 2        | Bob         | No          | No           |
+| 3        | Sam         | Yes         | No           |
+
+pet_type
+
+| pet_id | pet_type | 
+|--------|----------|
+| 1      | Dog      | 
+| 2      | Horse    |           
+| 3      | Cat      | 
+| 4      | Turtle   |
+| 5      | Fish     |
+
+pets
+
+| owner_id   | pet_name   | pet_type |
+|------------|------------|----------|
+| 1          | Ellie      | 1        |
+| 2          | Joe        | 2        |
+| 3          | Ginger     | 1        |
+| 1          | Tiger      | 3        |
+| 3          | Miss Kitty | 3        |
+| 1          | Toby       | 4        |
+| 3          | Bubble     | 5        |
+
+
 ---
 ## Stretch Goals