Introduction to SQL

Kursusindhold

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Data Challenge: Updating Page Counts Challenge: Mark Archived Books As Unavailable Deleting Rows Challenge: Deleting Outdated Records Duplicating Tables Challenge: Create a Table Backup Challenge: Generate a Summarized Books Table Deleting Tables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: Negating a Range

In the previous task, you had received a request to make a list of all the books that were published either before 1990 or after 2015.

Opgave

Swipe to start coding

You had to write a query to fetch the titles and publication dates of all the books that match the conditions.

The solution for the previous task involved the usage of the OR operator.

Now your task is to rewrite the same query, however this time without the OR operator.

The books table includes these columns: id, title, author, genre and publication_year.

Løsning

Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder

Var alt klart?

Tak for dine kommentarer!

Sektion 2. Kapitel 16

toggle bottom row

Challenge: Negating a Range

In the previous task, you had received a request to make a list of all the books that were published either before 1990 or after 2015.

Opgave

Swipe to start coding

You had to write a query to fetch the titles and publication dates of all the books that match the conditions.

The solution for the previous task involved the usage of the OR operator.

Now your task is to rewrite the same query, however this time without the OR operator.

The books table includes these columns: id, title, author, genre and publication_year.

Løsning

Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder

Var alt klart?

Tak for dine kommentarer!

Sektion 2. Kapitel 16

Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder

some-alt