PokemonSqlLab

MySQL Pokemon Report Queries

Goals

• Become proficient selecting data out of a mysql database
• Become comfortable performing a SQL join
• Be able to format SQL output as a readable report

Instructions

Part 1: Importing data

Directions:

• In intellij, connect to your local mysql instance
• Create your pokemon schema
• Unpack the pokemon_sql.zip files
• One by one execute these files making sure to check your pokemon schema

From here you should have all the pokemon data in your mysql schema. Feel free to explore the data and perform a few select statements to see what the data looks like.

Part 2: Simple Selects and Counts

Directions: Write a sql query or sql queries that can answer the following questions

• What are all the types of pokemon that a pokemon can have?

  SELECT COUNT(id) FROM pokemon.types;
  

• What is the name of the pokemon with id 45?

  SELECT name FROM pokemon.pokemons WHERE id = 45;
  

• How many pokemon are there?

  SELECT COUNT(id) FROM pokemon.pokemons;
  

• How many types are there?

• How many pokemon have a secondary type?

  SELECT COUNT(id) FROM pokemon.pokemons WHERE secondary_type IS NOT NULL;
  

  Part 3: Joins and Groups

  Directions: Write a sql query or sql queries that can answer the following questions

• What is each pokemon's primary type?

  SELECT pokemon.pokemons.name, pokemon.types.name
  FROM pokemon.pokemons
  JOIN pokemon.types ON pokemons.primary_type = types.id;
  

• What is Rufflet's secondary type?

  SELECT pokemons.name, pokemons.secondary_type, types.name
  FROM pokemon.pokemons
  JOIN pokemon.types
  ON pokemons.secondary_type = types.id
  WHERE pokemons.name = "Rufflet";
  

• What are the names of the pokemon that belong to the trainer with trainerID 303?

  SELECT pokemons.name FROM pokemon.pokemons
  JOIN pokemon.pokemon_trainer
  ON pokemons.id = pokemon_trainer.pokemon_id
  WHERE pokemon_trainer.trainerID = 303;
  

• How many pokemon have a secondary type Poison

  SELECT pokemon.types.name, COUNT(pokemon.pokemons.name) AS "Count - Type Poison"
  FROM pokemon.pokemons
  JOIN pokemon.types
  ON pokemon.pokemons.secondary_type = pokemon.types.id
  WHERE pokemon.types.name = "Poison";
  

• What are all the primary types and how many pokemon have that type?

  SELECT pokemon.types.name, COUNT(pokemon.pokemons.name) AS "Count"
  FROM pokemon.pokemons
  JOIN pokemon.types
  ON pokemons.primary_type = types.id
  GROUP BY pokemon.types.id;
  

• How many pokemon at level 100 does each trainer with at least one level 100 pokemone have? (Hint: your query should not display a trainer

  SELECT COUNT(pokemon_trainer.pokemon_id)
  FROM pokemon.pokemon_trainer
  WHERE pokemon.pokemon_trainer.pokelevel = 100;
  

Not sure how to answer the "each" part of the question without showing trainers. So below is an alternative response that shows "each" trainer by trainerID.

    SELECT COUNT(pokemon_trainer.pokemon_id)
    FROM pokemon.pokemon_trainer
    WHERE pokemon.pokemon_trainer.pokelevel = 100
    GROUP BY pokemon_trainer.trainerID;

• How many pokemon only belong to one trainer and no other?

  • the answer is 0.

    SELECT COUNT(pokemon.pokemon_trainer.pokemon_id) FROM pokemon.pokemon_trainer HAVING COUNT(pokemon_trainer.trainerID) = 1;

Part 4: Final Report

Directions: Write a query that returns the following collumns:

Pokemon Name	Trainer Name	Level	Primary Type	Secondary Type
Pokemon's name	Trainer's name	Current Level	Primary Type Name	Secondary Type Name

Sort the data by finding out which trainer has the strongest pokemon so that this will act as a ranking of strongest to weakest trainer. You may interpret strongest in whatever way you want, but you will have to explain your decision.

Turning in this assignment

To turn in this assignment, create files for each part with at least one query for each question answered. Above each query include a comment with the question you were answering. Example:

 # How many characters are in the string 'Hello World!'
 SELECT CHAR_LENGTH('Hello World!') AS length_of_hello_world

For Part 4 specifically also leave a comment explaining how your query is deciding who the strongest trainer is

Once all of that is done, submit a pull request