Course Content
Introduction to SQL
1. Retrieving Data
Retrieving Individual ColumnsRetrieving Multiple Columns Retrieving All ColumnsRetrieving Distinct RowsLimiting ResultsChallenge: Find the Population of the CountriesChallenge: Find All CountriesChallenge: Find All Countries With Their IDsChallenge: Find Country CapitalsChallenge: Find the Regions in Which All Countries Are Located
2. Sorting Retrieved Data
Sorting DataChallengeSorting by Multiple ColumnsChallengeSpecifying Sort DirectionChallenge: Sort the Countries by Region and CapitalChallenge: Sort Capitals in Descending OrderChallenge: Sort Countries in Ascending OrderChallenge: Find Countries, Their IDs, and Their PopulationsChallenge: Find Countries, IDs, Populations, Regions, and Sort ThemChallenge: Find All Continents and Sort Them in Ascending Order
4. Advanced Data Filtering
Introduction to SQL
Retrieving All Columns
Alternatively, we can retrieve all the columns simultaneously from the table without explicitly naming each one. This can be done with an asterisk *
. Let's look at an example.
What syntax is used to retrieve all fields and columns from a table?
Select the correct answer
Everything was clear?
Section 1. Chapter 3