Question

Using the country and countrylanguage tables, write the SQL SELECT statement to display the countries (country table) that speak English as the official language (countrylanguage table). Both tables have a "country code" column.

Use a column alias "Official_English_Speaking_Countries" for the names of the countries (the column name is "Name"). Order ascending by the name of the country.

Answer 1

The SQL SELECT statement needed to find countries where English is an official language involves an INNER JOIN on 'country code' between 'country' and 'countrylanguage' tables, a WHERE clause filtering for English language and official status, and ordering the results alphabetically by country name.

Step-by-step explanation:

To identify the Official_English_Speaking_Countries that have English as their official language from the country and countrylanguage tables with a common 'country code' column, you would need to perform a JOIN operation in SQL. Here is a step-by-step explanation of the query that would accomplish this:

• Use the SELECT statement to choose the columns of interest, in this case, the 'Name' column from the 'country' table.
• Apply an INNER JOIN to combine rows from both tables where the 'country code' matches.
• Include a WHERE clause to filter only those rows where the language is 'English' and the 'IsOfficial' column is 'T' for true.
• Use an AS clause to assign an alias to the 'Name' column.
• Order the results by the 'Name' column in ascending order.

The full SQL statement would be:

SELECT country.Name AS 'Official_English_Speaking_Countries'
FROM country
INNER JOIN countrylanguage ON country.Code = countrylanguage.CountryCode
WHERE countrylanguage.Language = 'English'
AND countrylanguage.IsOfficial = 'T'
ORDER BY country.Name ASC;

This statement will provide a list of countries where English is an official language, sorted alphabetically by the country's name.