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Introduction to SQL with unittests

bookRetrieving All Columns

Instead of listing each column, you can use the asterisk * to retrieve all columns from the table at once. This is especially useful when you need to view all the data in a table without manually typing out each column name. Here’s an example:


              
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SELECT * 
FROM table_name;
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Write an SQL query to retrieve ALL columns from the country table.

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SectionΒ 1. ChapterΒ 3
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bookRetrieving All Columns

Swipe to show menu

Instead of listing each column, you can use the asterisk * to retrieve all columns from the table at once. This is especially useful when you need to view all the data in a table without manually typing out each column name. Here’s an example:


              
12

            
SELECT * 
FROM table_name;
copy
Task

Swipe to start coding

Write an SQL query to retrieve ALL columns from the country table.

Solution

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

close

Awesome!

Completion rate improved to 2.44
SectionΒ 1. ChapterΒ 3
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