Activity 17: Data Structure Again

1. Product Table

1. List

A List is a collection of items that are ordered and can be accessed by their index. In the context of the Product Table, a List might represent a collection of product names or prices.

Example:

Product Table Structure

2. Object

An Object represents a single entity with various properties (or attributes). Each product in the Product Table can be considered an Object that contains information about that specific product.

Example:

jsonCopy code{
  "ID": 1,
  "Name": "Laptop",
  "Category": "Electronics",
  "Price": 750,
  "Stock": 50,
  "Supplier Email": "supplier1@gmail.com"
}

3. List of Objects

A List of Objects is a collection of Objects. In this case, it would be an array of product Objects, where each Object contains details about a different product.

Example:

jsonCopy code[  {    "ID": 1,    "Name": "Laptop",    "Category": "Electronics",    "Price": 750,    "Stock": 50,    "Supplier Email": "supplier1@gmail.com"  },  {    "ID": 2,    "Name": "Desk Chair",    "Category": "Furniture",    "Price": 100,    "Stock": 200,    "Supplier Email": "supplier2@gmail.com"  },  {    "ID": 3,    "Name": "Smartwatch",    "Category": "Electronics",    "Price": 200,    "Stock": 150,    "Supplier Email": "supplier3@gmail.com"  },  {    "ID": 4,    "Name": "Notebook",    "Category": "Stationery",    "Price": 5,    "Stock": 500,    "Supplier Email": "supplier4@gmail.com"  },  {    "ID": 5,    "Name": "Running Shoes",    "Category": "Apparel",    "Price": 80,    "Stock": 100,    "Supplier Email": "supplier5@gmail.com"  }]

2. Employee Table

Employee Table Structure

Breakdown of Columns

1. ID: A unique identifier for each employee.

   • Example: 1, 2, 3, etc.

2. Name: The name of the employee.

   • Example: John Doe, Jane Smith, etc.

3. Department: The department where the employee works.

   • Example: Sales, Human Resources, etc.

4. Age: The age of the employee.

   • Example: 30 (for John Doe), 25 (for Jane Smith).

5. Email: The email address of the employee.

   • Example: john.doe@company.com, jane.smith@company.com.

1. List

A List is an ordered collection of items, typically of the same type. In the context of the Employee Table, a List could represent a single attribute of all employees.

Example of a List: Employee Names

plaintextCopy code["John Doe", "Jane Smith", "Mark Johnson", "Lisa Wong", "Paul McDonald"]

• Characteristics:

  • The order matters.

  • It can contain duplicate values (if applicable).

  • The items are accessible by their index.

2. Object

An Object is a collection of key-value pairs, representing a single entity with various attributes. For the Employee Table, each employee can be considered an object.

Example of an Object: John Doe's Data

jsonCopy code{
  "ID": 1,
  "Name": "John Doe",
  "Department": "Sales",
  "Age": 30,
  "Email": "john.doe@company.com"
}

• Characteristics:

  • Each key (attribute) is associated with a value.

  • Objects can contain multiple types of data (numbers, strings, etc.).

  • They represent a single instance of an entity (in this case, an employee).

3. List of Objects

A List of Objects is a collection of multiple objects, each representing a distinct entity. In this case, it represents all the employees in the Employee Table.

Example of a List of Objects: Employee Data

jsonCopy code[  {    "ID": 1,    "Name": "John Doe",    "Department": "Sales",    "Age": 30,    "Email": "john.doe@company.com"  },  {    "ID": 2,    "Name": "Jane Smith",    "Department": "Human Resources",    "Age": 25,    "Email": "jane.smith@company.com"  },  {    "ID": 3,    "Name": "Mark Johnson",    "Department": "IT",    "Age": 40,    "Email": "mark.johnson@company.com"  },  {    "ID": 4,    "Name": "Lisa Wong",    "Department": "Marketing",    "Age": 28,    "Email": "lisa.wong@company.com"  },  {    "ID": 5,    "Name": "Paul McDonald",    "Department": "Finance",    "Age": 35,    "Email": "paul.mcdonald@company.com"  }]

• Characteristics:

  • The list contains multiple objects, each representing an employee.

  • Each object can have different attributes but follows a similar structure.

  • Useful for managing collections of related data.

3. Books Table

Books Table Structure

1. List

A List can represent a single attribute from all the books, such as the titles of the books.

Example of a List: Book Titles

plaintextCopy code["The Great Gatsby", "To Kill a Mockingbird", "1984", "The Catcher in the Rye", "A Brief History of Time"]

• Characteristics:

  • An ordered collection of titles.

  • Accessed by index.

  • Simple and straightforward.

2. Object

An Object can represent the details of a single book, containing all its attributes.

Example of an Object: Details of "The Great Gatsby"

jsonCopy code{
  "ID": 1,
  "Title": "The Great Gatsby",
  "Author": "F. Scott Fitzgerald",
  "Genre": "Fiction",
  "Published Year": 1925,
  "ISBN": "978-0743273565",
  "Stock": 20,
  "Price": 15.99
}

• Characteristics:

  • Contains key-value pairs that describe one book.

  • Each key represents a specific attribute (e.g., Title, Author).

  • Provides a structured way to access a book's details.

3. List of Objects

A List of Objects represents multiple books, each as an object containing all their respective attributes.

Example of a List of Objects: Books Data

jsonCopy code[  {    "ID": 1,    "Title": "The Great Gatsby",    "Author": "F. Scott Fitzgerald",    "Genre": "Fiction",    "Published Year": 1925,    "ISBN": "978-0743273565",    "Stock": 20,    "Price": 15.99  },  {    "ID": 2,    "Title": "To Kill a Mockingbird",    "Author": "Harper Lee",    "Genre": "Fiction",    "Published Year": 1960,    "ISBN": "978-0060935467",    "Stock": 35,    "Price": 10.99  },  {    "ID": 3,    "Title": "1984",    "Author": "George Orwell",    "Genre": "Dystopian",    "Published Year": 1949,    "ISBN": "978-0451524935",    "Stock": 40,    "Price": 9.99  },  {    "ID": 4,    "Title": "The Catcher in the Rye",    "Author": "J.D. Salinger",    "Genre": "Fiction",    "Published Year": 1951,    "ISBN": "978-0316769488",    "Stock": 25,    "Price": 8.99  },  {    "ID": 5,    "Title": "A Brief History of Time",    "Author": "Stephen Hawking",    "Genre": "Non-fiction",    "Published Year": 1988,    "ISBN": "978-0553380163",    "Stock": 10,    "Price": 18.99  }]

• Characteristics:

  • A collection of multiple objects, each representing a book.

  • Each book object contains various attributes structured as key-value pairs.

  • Allows easy management and access to a collection of books.

University Table

1. List

A List is a collection of items where each item is typically of the same type. In programming, lists are often used to store multiple values in a single variable.

Example of a List based on the University Table:

plaintextCopy code["University of the Philippines", "Ateneo de Manila University", "De La Salle University", "University of Santo Tomas", "Polytechnic University of the Philippines"]

• Description: This list contains the names of the universities. It's a simple one-dimensional structure that holds multiple values.

University Table Structure

2. Object

An Object is a data structure that can contain multiple properties and values. Each property is defined by a key-value pair, and objects can represent complex data more effectively.

Example of an Object based on the University Table:

jsonCopy code{
  "ID": 1,
  "Name": "University of the Philippines",
  "Location": "Quezon City",
  "Established Year": 1908,
  "Type": "Public",
  "Website": "www.up.edu.ph"
}

• Description: This object represents a single university with various properties like ID, Name, Location, etc. Each property provides specific information about that university.

3. List of Objects

A List of Objects is essentially a list where each item is an object. This allows for a structured representation of multiple entities, each with its own set of properties.

Example of a List of Objects based on the University Table:

jsonCopy code[  {    "ID": 1,    "Name": "University of the Philippines",    "Location": "Quezon City",    "Established Year": 1908,    "Type": "Public",    "Website": "www.up.edu.ph"  },  {    "ID": 2,    "Name": "Ateneo de Manila University",    "Location": "Quezon City",    "Established Year": 1859,    "Type": "Private",    "Website": "www.ateneo.edu"  },  {    "ID": 3,    "Name": "De La Salle University",    "Location": "Manila",    "Established Year": 1911,    "Type": "Private",    "Website": "www.dlsu.edu.ph"  },  {    "ID": 4,    "Name": "University of Santo Tomas",    "Location": "Manila",    "Established Year": 1611,    "Type": "Private",    "Website": "www.ust.edu.ph"  },  {    "ID": 5,    "Name": "Polytechnic University of the Philippines",    "Location": "Manila",    "Established Year": 1904,    "Type": "Public",    "Website": "www.pup.edu.ph"  }]

• Description: This structure contains a list of university objects. Each object represents a university with its associated properties, allowing for easy access and management of university data.

Summary

• List: A simple collection of items (e.g., university names).

• Object: A complex structure representing a single entity with multiple properties (e.g., details of one university).

• List of Objects: A collection of objects, where each object represents an individual entity with its own properties (e.g., details of multiple universities).

Restaurant Table

Restaurant Table Structure

1. List

A List is a simple collection of items where each item is typically of the same type. It is often used to store multiple values in a single variable.

Example of a List based on the Restaurant Table:

plaintextCopy code["Vikings Luxury Buffet", "Antonio's Restaurant", "Mesa Filipino Moderne", "Manam Comfort Filipino", "Ramen Nagi"]

• Description: This list contains the names of the restaurants. It's a straightforward one-dimensional structure that holds multiple values.

2. Object

An Object is a data structure that can contain multiple properties and values. Each property is defined by a key-value pair, allowing for a structured representation of an entity.

Example of an Object based on the Restaurant Table:

jsonCopy code{
  "ID": 1,
  "Name": "Vikings Luxury Buffet",
  "Location": "Pasay City",
  "Cuisine Type": "Buffet",
  "Established Year": 2011,
  "Website or Contact": "www.vikings.ph"
}

• Description: This object represents a single restaurant with various properties like ID, Name, Location, etc. Each property provides specific information about that restaurant.

3. List of Objects

A List of Objects is a list where each item is an object. This structure allows for a detailed representation of multiple entities, each with its own set of properties.

Example of a List of Objects based on the Restaurant Table:

jsonCopy code[  {    "ID": 1,    "Name": "Vikings Luxury Buffet",    "Location": "Pasay City",    "Cuisine Type": "Buffet",    "Established Year": 2011,    "Website or Contact": "www.vikings.ph"  },  {    "ID": 2,    "Name": "Antonio's Restaurant",    "Location": "Tagaytay",    "Cuisine Type": "Fine Dining",    "Established Year": 2002,    "Website or Contact": "www.antoniosrestaurant.ph"  },  {    "ID": 3,    "Name": "Mesa Filipino Moderne",    "Location": "Makati City",    "Cuisine Type": "Filipino",    "Established Year": 2009,    "Website or Contact": "www.mesa.ph"  },  {    "ID": 4,    "Name": "Manam Comfort Filipino",    "Location": "Quezon City",    "Cuisine Type": "Filipino",    "Established Year": 2013,    "Website or Contact": "www.manam.ph"  },  {    "ID": 5,    "Name": "Ramen Nagi",    "Location": "Various Locations",    "Cuisine Type": "Japanese",    "Established Year": 2013,    "Website or Contact": "www.ramennagi.com.ph"  }]

• Description: This structure contains a list of restaurant objects. Each object represents a restaurant with its associated properties, allowing for easy access and management of restaurant data.

Summary

• List: A simple collection of items (e.g., restaurant names).

• Object: A complex structure representing a single entity with multiple properties (e.g., details of one restaurant).

• List of Objects: A collection of objects, where each object represents an individual entity with its own properties (e.g., details of multiple restaurants).