1. Basic SQL Select Query of Hacker Rank.

Author: neptune | 20th-Apr-2022

#SQL #Hackerrank

Problem Statement : Query all columns for all American cities in the CITY table with populations larger than 100000. The CountryCode for America is USA.

The CITY table is described as follows:

Solution :

For this challenge, we must:

Select all columns using the all-column wildcard (*).
Restrict the selected rows using the WHERE clause so that only records satisfying both of the following two conditions are returned:

COUNTRYCODE is USA, meaning the cities are American.
POPULATION is greater than 100000.

Query :

SELECT *

FROM CITY

WHERE

COUNTRYCODE = 'USA'

AND POPULATION > 100000;

Output:

Hope you understand !!!

If you have any questions let me know in the comment section.

Explore more
#JavaScript #Python #Hackerrank #AI #Motivation #React.js #Interview #Testing #SQL #Selenium #LeetCode #Machine learning #Problem Solving #IT #API #Java #GPT #AWS #Algorithms #Certifications #Github #TCS #Projects #Jobs #Django #Microservice #Node.js #Google #Story #Pip #Data Science #Postman #Health #Twitter #Elon Musk

Related Blogs

5. Solution of Hacker Rank Weather Observation Station 8.
Author: neptune | 18th-Aug-2024
#SQL #Hackerrank
Query the list of CITY names from STATION which have vowels (i.e., a, e, i, o, and u) as both their first and last characters. Your result cannot contain duplicates...

The Blunder | Hackerrank
Author: neptune | 21st-Nov-2022
#SQL #Hackerrank
Write a query calculating the amount of error (i.e.: average monthly salaries), and round it up to the next integer...

7.Solution of Hacker Rank The Report
Author: neptune | 23rd-Jan-2023
#SQL #Hackerrank
Problem Statement : generate a report containing three columns: Name, Grade and Mark. Ketty doesn't want the NAMES of those students who received a grade lower than 8...

4. Solution of Hacker Rank Weather Observation Station 6.
Author: neptune | 23rd-Jan-2023
#SQL #Hackerrank
Query the list of CITY names starting with vowels (i.e., a, e, i, o, or u) from STATION. Your result cannot contain duplicates...

Identifying the Odd One Out in a Series of Strings | Hackerrank
Author: neptune | 15th-Jun-2023
#Hackerrank #Problem Solving
The article presents an algorithm to identify the odd one out in a series of strings efficiently...

3. Solution of Hacker Rank Weather Observation Station 4.
Author: neptune | 23rd-Jan-2023
#SQL #Hackerrank
Problem Statement : Find the difference between the total number of CITY entries in the table and the number of distinct CITY entries in the table...

The PADS | Hackerrank
Author: neptune | 21st-Nov-2022
#SQL #Hackerrank
Problem Statement: Generate the following two result sets: 1. Query an alphabetically ordered list of all names in OCCUPATIONS, immediately followed by the first letter of each profession...

6. Solution of Hacker Rank Employee Salaries.
Author: neptune | 23rd-Jan-2023
#SQL #Hackerrank
Problem Statement : Query that prints a list of employee names for employees in Employee having a salary greater than $2000 per month and experience less than 10 months...

Generate Fibonacci Sequence - JavaScript | Hackerank
Author: neptune | 07th-Apr-2023
#JavaScript #Hackerrank
Write a JavaScript function fibonacciSequence() to generate a FIbonacci sequence...

2. Solution of Hacker Rank Weather Observation Station 3.
Author: neptune | 23rd-Jan-2023
#SQL #Hackerrank
Problem Statement : Query a list of CITY names from STATION for cities that have an even ID number. Print the results in any order, but exclude duplicates from the answer...

Team Formation Hackerrank | Julia
Author: neptune | 13th-Apr-2023
#Hackerrank
HackerRank is organising a chess tournament for its employees. There are n employees, having IDs 1, 2, n, where the employee has a rating of rating...

Modified 0-1 knapsack problem | Frsco Play Hackerrank
Author: neptune | 05th-Nov-2023
#Hackerrank #Problem Solving
An automobile mechanic wants to buy a set of spare parts from a manufacturing unit. Goal is to maximise the amount of money the mechanic can earn...

Weather Observation Station 18 | Hackerrank
Author: neptune | 18th-Apr-2023
#SQL #Hackerrank
In this problem, we need to find the Manhattan Distance between two points P1(a,b) and P2(c,d)...

Solving the Ice Cream Parlor Problem | Hackerrank
Author: neptune | 04th-Jun-2023
#Hackerrank #Problem Solving
Two friends like to pool their money and go to the ice cream parlour. They always choose two distinct flavours and they spend all of their money...

AngularJS - Know Tech Frameworks | Fresco Play
Author: neptune | 05th-Nov-2023
#Hackerrank #Problem Solving
Build an application that displays the framework details using AngularJS routing. We will build an application that displays the Tech Frontend and Backend frameworks...

Top Earners | HackerRank
Author: neptune | 23rd-Nov-2022
#SQL #Hackerrank
Write a query to find the maximum total earnings for all employees as well as the total number of employees who have maximum total earnings...

Backspace String Compare using R | Fresco Play
Author: neptune | 05th-Nov-2023
#Hackerrank #Problem Solving
The code implementation in both R and Python solves the "Backspace String Compare" problem using stack data structure...

PySpark Milestone Black Friday Sales Data | Fresco Play Hackerrank
Author: neptune | 05th-Nov-2023
#Data Science #Hackerrank
Welcome to the Spark Challenge. You are provided with the Black Friday sales data and we as a big data developer needs to analyze and fetch the required data...

30+ SQL Interview Questions
Author: neptune | 05th-Jan-2023
#Interview #SQL
Data Definition Language (DDL) – It allows end-users to CREATE, ALTER, and DELETE database objects...

Python - Number Based Problem | Hackerrank
Author: neptune | 17th-Aug-2023
#Hackerrank #Problem Solving
Determine whether the number in descending order is a prime or not. If the number is a prime, then print "Sorted Number is a prime number," otherwise, print "Sorted Number is not a prime number."..