MySQL Workshop 2 - Basic Data Manipulation

Workshop Contents

Data Manipulation Statements

• Insert
• Update
• Delete

Data Manipulation Queries

• Select
  • Count

Query Clauses

• Limit
• Where
  • Logical And Operator
  • Logical Or Operator
  • Like Operator

Query Modifiers

• Order By
• Group By

MySQL Bulk Data Import

# Executing Statements from an External File
mysql> source <filename>

Workshop Instructions

• Fork this repository
• Create a new Cloud9 Workspace
• For every exercise in this Workshop:
  • Create a new branch off from "master" named "exercise-n"
  • Create a new file named "exercise-n.txt", containing:
    • The SQL Statement used, when applicable
    • The SQL Statement results, when applicable
  • Create a pull request

Exercise 1

• Import Database Schema from the following source file into decodemtl_addressbook:
  • data/import-table-structure.sql

Exercise 2

• Insert one row into decodemtl_addressbook.Account
• Insert one row into decodemtl_addressbook.AddressBook
• Insert three rows into decodemtl_addressbook.Entry

Exercise 3

• Retrieve data from the previously inserted decodemtl_addressbook.Account row
• Retrieve data from the previously inserted decodemtl_addressbook.AddressBook row
• Retrieve data from the previously inserted decodemtl_addressbook.Entry rows

Exercise 4

• Modify the decodemtl_addressbook.Account row
• Modify the decodemtl_addressbook.AddressBook row
• Modify the three decodemtl_addressbook.Entry rows using one query only

Exercise 5

• Delete all data from decodemtl_addressbook.Entry without using a DELETE statement

Exercise 6

• Delete decodemtl_addressbook.Account and all associated date

Exercise 7

• Import Database Schema from the following source file into decodemtl_addressbook_import:
  • data/import-table-structure.sql
• Bulk import data from the following source files into decodemtl_addressbook_import:
  • data/import-account.sql
  • data/import-addressbook.sql
  • data/import-entry.sql

Exercise 8

• What is the email of the Account identified by "63"?
• What are the names of the AdressBooks belonging to accountId "3"?
• On which date was the AddressBook titled "Lorem Foundation" created?

Exercise 9

• How many Accounts exist?
• How many Address Books exist?
• How many Address Book Entries exist?

Exercise 10

• How many Address Book Entries are listed as born before February 12th of 1982?
• How many Address Book Entries are listed as born on or after January 1st of 1965?
• Which Address Book Entry is listed as being the oldest of age?

Exercise 11

• How many Address Book Entries are not listed as other?
• How many Address Book Entries are listed as either home or work?
• How many Address Book Entries are listed as phones?

Exercise 12

• Which Account owns the most Address Books?
• Which Address Book contains the most Entries?

Exercise 13

• How many Address Book Entries have phones starting with area code 3XX?
• How many Address Book Entries have home phones not containing the digit 5?
• How many Address Book Entries are work phones starting with a country code?

Exercise 14 (Workshop Challenge)

• Create a data model representing a Store with Inventory, Customers and Invoices
• This model should provide answers to the following questions:
  • What is the Store's income within a specific date range?
  • What is the Store's top selling Inventory product?
  • Which company produces the top selling Inventory product?
  • What is the top refunded Inventory product?
  • Which products should be taken out from the Store's Inventory?
  • Which companies should the Store stop selling products from?
  • What is the amount of Internal (Canadian) vs. External sales?
  • How many of a specific product remains in Inventory for a specific date?