Introduction to SQL

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Introduction to SQL

Introduction to SQL

1. Getting Started

What is SQL?Setting Up SQL and SSMS Getting Familiar with SSMS Structure of an SQL Database System The SELECT Statement Challenge: First Day as a Librarian Challenge: Find all Book Titles Challenge: Find Book Titles and Authors The DISTINCT Keyword Challenge: Find all Genres

2. Filtering Data

The WHERE Clause Challenge: Help a Reader Find Their Favorite Genre Challenge: Fetching Older Books Conditional Expressions: Comparison Operators Challenge: Avoid the Damaged Books Challenge: Highlight New Arrivals Challenge: Budget-Friendly Books Conditional Expressions: The AND Operator Challenge: Find Specific Books for a Reader Challenge: Defining Ranges Challenge: Multiple Conditions Conditional Expressions: The OR Operator Challenge: Matching Multiple Options Challenge: Excluding A Range Conditional Expressions: The NOT Operator Challenge: Negating a Range

3. Sorting Data

Basic Sorting Challenge: Sorting the Library Catalogue Sorting by Multiple Columns Challenge: Further Sorting the Catalogue Sorting after Filtering Data Challenge: Find the Cheapest Books Challenge: Help a Customer Find a Book The LIMIT Keyword Challenge: Select Books for the Collector's Section Challenge: Affordable Books

4. Populating a Database

Creating a Table Challenge: Creating a new Books Table Inserting Rows into a Table Challenge: Inserting Data Challenge: Inserting More Data Inserting Multiple Rows Challenge: Inserting Bulk Data Primary Keys The SERIAL Keyword Challenge: Changing the Books Structure Specifying Default Values Challenge: Further Improving the Books Table

5. Updating & Deleting Data

Updating Rows in a Table Challenge: Correct Book's Data Challenge: Updating Page Counts Challenge: Mark Archived Books As Unavailable Deleting Rows Challenge: Deleting Outdated Records Duplicating Tables Challenge: Create a Table Backup Challenge: Generate a Summarized Books Table Deleting Tables

Challenge: Correct Book's Data

The library staff discovered an error in the database for the books table. A recently added book has incorrect information, and you need to update it.

Specifically:

The book with book_id = 5 currently has the title 'The Greatest Gatsby'. However, the title was entered incorrectly, and it should be updated to 'The Great Gatsby'.

Additionally, this book's is_available status is incorrect and should be set to FALSE because it has been lent out.

Завдання

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Your task is to write an UPDATE statement to correct this information in the books table.

The syntax of the UPDATE statement is:

Рішення

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Секція 5. Розділ 2

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Challenge: Correct Book's Data

The library staff discovered an error in the database for the books table. A recently added book has incorrect information, and you need to update it.

Specifically:

The book with book_id = 5 currently has the title 'The Greatest Gatsby'. However, the title was entered incorrectly, and it should be updated to 'The Great Gatsby'.

Additionally, this book's is_available status is incorrect and should be set to FALSE because it has been lent out.

Завдання

Swipe to show code editor

Your task is to write an UPDATE statement to correct this information in the books table.

The syntax of the UPDATE statement is:

Рішення

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 5. Розділ 2

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

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