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Assume you have a table in your database called World' with the following schema: Table: World | Column Name | Type | name | continent | varchar | | varchar | | area int

Assume you have a table in your database called World' with the following schema: Table: World | Column Name | Type | name | continent | varchar | | varchar | | area int

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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I need the full code including(create table, insert) and the output

Assume you have a table in your database called World' with the following schema: Table: world | Column Name | Type +- | varchar | | varchar | | int | int | int | name | continent |area | I population I gdp | +-- name is the primary key column for this table. Each row of this table gives information about the name of a country, the continent to which it belongs, its area, the population, and its GDP value. It contains the following records of data: Input: World table: +-- | name | continent | area I population | gdp +-- | Afghanistan | Asia | Albania | Algeria | Andorra | Angola | 652230 | 28748 | 2381741 | 37100000 | 468 | 1246700 | 20609294 | 20343000000 | 12960000000 | 188681000000 | | 3712000000 | 100990000000 | | 25500100 | 2831741 | Europe | Africa | Europe | Africa | 78115 +- Write an SQL query to report the name, population, and area of the big countries. Return the result table in any order. A country is big if: it has an area of at least three million (i.e., 3000000 km2), or • it has a population of at least twenty-five million (i.e., 25000000). The results should be: Output: +- | name I population | area +-- | Afghanistan | 25500100 | Algeria | 652230 | 2381741 | | 37100000 +- - +
Transcribed Image Text:Assume you have a table in your database called World' with the following schema: Table: world | Column Name | Type +- | varchar | | varchar | | int | int | int | name | continent |area | I population I gdp | +-- name is the primary key column for this table. Each row of this table gives information about the name of a country, the continent to which it belongs, its area, the population, and its GDP value. It contains the following records of data: Input: World table: +-- | name | continent | area I population | gdp +-- | Afghanistan | Asia | Albania | Algeria | Andorra | Angola | 652230 | 28748 | 2381741 | 37100000 | 468 | 1246700 | 20609294 | 20343000000 | 12960000000 | 188681000000 | | 3712000000 | 100990000000 | | 25500100 | 2831741 | Europe | Africa | Europe | Africa | 78115 +- Write an SQL query to report the name, population, and area of the big countries. Return the result table in any order. A country is big if: it has an area of at least three million (i.e., 3000000 km2), or • it has a population of at least twenty-five million (i.e., 25000000). The results should be: Output: +- | name I population | area +-- | Afghanistan | 25500100 | Algeria | 652230 | 2381741 | | 37100000 +- - +
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NOTE: I have given the answer as asked in the question 

Solution:

WHERE: conditionally retrieve/get/extract data 

To get at least we always use (> greater than operator)  to retrieve/get/extract

 

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