Let's find out a little more about this database. A `country database` contains one table, named `country`. Let's look at this table.

This table has **15 rows**. In other words, we have 15 different records for different countries.

What about columns? Here we have **7 columns**, like `id`,` name`, `continent`, `region`,
 `SurfaceArea`, `capital` and `population`.

`1. id` - the record number of this table

`2. name` - the name of the country

`3. continent` - the name of the country's continent;

`4. region`- the name of the country's  region

`5. SurfaceArea` - the surface area of the country

`6. capital` - the capital of the country

`7. population` - the population of the country.
 



We can also retrieve multiple columns with the SELECT operator. The only difference is that after the word SELECT, we will need to specify several column names, which must be **separated by a comma**. Let’s take an example where we retrieve three columns from the country table.

This course is for you if you are new to SQL, you want to quickly learn how to get the most out of SQL and you want to learn how to use SQL in your own application development.

In this section, we will learn how to sort retrieved data using the ORDER BY clause. This clause, which must be the last in the SELECT statement, can be used to sort data on one or more columns as needed.\n

In this section, we will learn how to use the SQL SELECT statement to get a single table column, multiple table columns, and all table columns. We will also find out how to return unique values.

This section has long execution init script

Retrieving Multiple Columns

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