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Analyze International Debt Statistics

In this project, the international debt data collected by The World Bank was analyzed using SQL. The dataset contains information about the amount of debt (in USD) owed by developing countries across several categories. The following questions is used for the analysis:

  • What is the number of distinct countries present in the database?
  • What country has the highest amount of debt?
  • What country has the lowest amount of repayments?

Below is a description of the table used:

international_debt table

ColumnDefinitionData Type
country_nameName of the countryvarchar
country_codeCode representing the countryvarchar
indicator_nameDescription of the debt indicatorvarchar
indicator_codeCode representing the debt indicatorvarchar
debtValue of the debt indicator for the given country (in current US dollars)float

Number of distinct countries present in the database

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DataFrameas
num_distinct_countries
variable
-- num_distinct_countries 
SELECT COUNT(DISTINCT country_name) AS total_distinct_countries 
FROM international_debt;

Country with the highest amount of debt

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DataFrameas
highest_debt_country
variable
-- highest_debt_country 
SELECT country_name, 
	SUM(debt) AS total_debt
FROM international_debt
GROUP BY country_name
ORDER BY total_debt DESC
LIMIT 1;

Country with the lowest amount of repayments

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DataFrameas
lowest_principal_repayment
variable
-- lowest_principal_repayment 
SELECT country_name, indicator_name, 
	MIN(debt) AS lowest_repayment
FROM international_debt
WHERE indicator_code = 'DT.AMT.DLXF.CD'
GROUP BY country_name, indicator_name
ORDER BY lowest_repayment
LIMIT 1;