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Query a count of the number of cities in city having a population larger than 10000. The CountryCode for America is USA.

Query a count of the number of cities in city having a population larger than 10000. The following SQL lists the number of customers in each country. #11 HackerRank -SQL. code and city. Contribute to RodneyShag/HackerRank_solutions development by creating an account on GitHub. , Luton). select * from city where countrycode='USA' and population>100000 #sqlchallenge: #Challenge_12 Query the average population of all cities in the USA. Dec 2, 2013 · I want to select the country with the highest population. Use HAVING for filtering aggregate data and WHERE for filtering individual rows. Census Bureau for the United States, states, metropolitan and micropolitan statistical areas, counties, cities, towns, as well as for Puerto Rico and its municipios can be found on the Population Estimates web page. : number of characters in the name). The CITY table is described as follows: ID CITY Field Type NUMBER NAME VARCHAR2 (17) COUNTRYCODE VARCHAR2 (3) DISTRICT VARCHAR2 (20) POPULATION NUMBER Sep 23, 2010 · If the name of the country is in the Users table, try something like this: SELECT Country, COUNT (*) AS Number FROM Users GROUP BY Country ORDER BY Country If the name of the country is in the country table, then you will have to join SELECT Contries. CODE WHERE CONTINENT = 'Asia'; --Given the CITY and COUNTRY tables, query the names of all cities where the CONTINENT is 'Africa'. Study with Quizlet and memorize flashcards containing terms like Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i. We are doing the basic questions, then intermediate, and so on. /* Query all columns for all American cities in CITY with populations larger than 100,000. My desired output is 2 as there are two cities, c1 and c2, matching the condition. CountryName ORDER BY I made an interactive map with the 326 US cities having population over 100,000, copying data from Wikipedia in Excel and displaying on map. Tables: City city_id, city, country_id, last_update Country country_id, country, last_update I think I am very close to getting t Query the total population of all cities in CITY where District is California. 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. continent, COUNT(*) FROM Coun Mar 17, 2023 · Answer: Here's an example SQL query that retrieves the names of all American cities in the city table with populations larger than 120000: SELECT Name FROM city WHERE CountryCode = 'USA' AND Population > 120000; Explanation: In this query, we use the SELECT statement to specify that we want to retrieve the Name field for each city that meets the specified criteria. In some cases, cities are bifurcated into municipalities, which can lead to cities being included within other cities. customerID, Please verify the address before sending your mail. --The CountryCode for America is USA. I have to find for all the continent: the name of the continent, number of cities and number of countries. the table &quot;city&quot; (some columns) name cou Query the number of cities having populations larger than 100000. Then print these values as space-separated integers. I tried to group by city, calculate population of each city and then check if its population is greater than Mar 5, 2021 · SQL Problem Statement: Query a count of the number of cities in CITY having a Population larger than 100,000. Cities are a type of sub-administrative unit and are defined by the Ministry of Home Affairs. WHERE POPULATION > 100000: Filters the rows to include only cities with a population larger than 100000. countrycode=country. */ Aug 19, 2022 · Q1: Query all columns for all American cities in CITY with populations larger than 100,000. continent IN ('North America', 'South America') GROUP BY country. Summarize the Query the NAME field for all American cities in the CITY table with populations larger than 120000. , Query all columns (attributes) for every row in the CITY table. The table below lists U. The CITY table is described as follows: CITY Oct 25, 2015 · 7 You can write many query to answer this question like: As I am considering the question as we have table named as STATION and we have to now finding the difference between the total number of CITY entries in the table and the number of distinct CITY entries in the table Query 1: select (count(city)-count(distinct city)) from station; Query 2: Apr 14, 2021 · Table is named employee and columns are city, salary and employee goal : in a single query , to count all the employees that earn >=1300 value less than <=1300 by city. Here's a breakdown of each part: SELECT *: Selects all columns from the CITY table. Query the names of all American cities in CITY with populations larger than 120,000. FROM CITY: Specifies the table from which to retrieve data, which is the CITY table in this case. Query a count of the number of cities in CITY having a Population larger than . name; An equivalent query is SELECT Average Population || Query the average population for all cities in CITY, rounded down to the nearest integer. Jan 3, 2022 · Query a count of the number of cities in CITY having a Population larger than . Oct 21, 2023 · To list the IDs of companies with more than 10,000 employees in ascending order, a SQL query with SELECT, WHERE, and ORDER BY clauses is used, filtering companies by employee count and ordering the result by company ID. Query all columns for all American cities in CITY with populations larger than 100000. SELECT is used to retrieve data from a database. select * from city where population >100000 and countrycode=’usa’; ### 2. Jul 23, 2025 · Analyzing and understanding salary distributions within departments is a critical aspect of human resource management. Input Format The CITY table is described as follows: SELECT SUM (CITY. Like this: Now I need a table with the number of customers in each Distinct city. To simply know, which country has most number of cities, just use group by: select country_id, count(1) from city group by country_id This will give you the number of cities in each country. population>100000 WHERE country. Nov 17, 2015 · I am using the Mondial database schema and am trying to find: For each country, find city that has the highest population and the city's population. , Ely, Cambridgeshire) have a much smaller populations than some towns (e. Any idea on how to achieve such purpose? Question: Query all columns for all American cities in the CITY table with populations larger than 100000 . Summarize the Task Query all columns for all American cities in the CITY table with populations larger than 100000. country's columns are: Code Dec 20, 2024 · A city is big if it has an area bigger than 50K square km or a population of more than 15 million. Yes. In this article, we will explore SQL queries to calculate the average salary for each department and identify employees whose salaries exceed their departmental averages. na Jul 4, 2022 · Query all columns for all American cities in the CITY table with populations larger than 100000. HAVING The HAVING command is used instead of WHERE with aggregate functions. Input Format The CITY table is described as follows: Solution: select count (id) from city where population Algorithm Problem Name: Sql - Revising the Select Query I Problem Link: https://www. But if you are interested in making column for this problem then please go ahead with DAX query. These queries provide valuable insights for performance evaluations and salary adjustment strategies. Introduction : SQL (Structured Query Language ) is used to maintain structured data in relational databases and this is a standard that is used to manipulate Dec 20, 2024 · SQL SORTING and FILTERING Exercises on HR Database, Practice and Solution: From the following table, write a SQL query to count the number of cities in each country. cities that, in past censuses, have had more than 100,000 people living in them, but do not anymore. The CITY table is described as follows: Solution Nov 5, 2020 · 1. Mar 31, 2024 · Query all columns for all American cities in the CITY table with populations larger than 100000. Jun 2, 2022 · 2. Follow along as we Query the number of cities having populations larger than 100000. If i us The SQL COUNT () Function The COUNT() function returns the number of rows that matches a specified criterion. The CountryCode for America is … Query the average population of all cities in the District of California. Sep 14, 2024 · HackerRank SQL | Basic Select Revising the Select Query I : Query all columns for all American cities in the CITY table with populations larger than 100000. com has expired. Link: HackerRank - Revising the SELECT Query Solution: Cloudflare Registrar Question: (10 points) Query all columns for all American cities in the CITY table with populations larger than 100000. The CITY table is described as follows: The COUNTRYCODE for Japan is JPN. The CountryCode for America is uSA. [table: station] Sep 6, 2020 · Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i. Revising the Select Query II Query the NAME field for all American cities in the CITY table with populations larger Oct 12, 2014 · With mysql (only) there is a trick you can use: select * from ( select * from from country c join city d on d. The COUNTRYCODE for America is USA. Feb 10, 2021 · The idea behind column "ongoing order" is to count the number of rows where the "shipping date" is after the current record's "order date", the other 2 column would split that same information based on "order type". city's columns are: name, ID, Population, countryCode. Code = countrylanguage. Query all columns for all American cities in the CITY table with populations larger than 100000. Apr 1, 2024 · Problem Statement: Query all columns for American cities in the CITY table with populations larger than 100000. Let's discuss it one by one. This query will return all columns for any city in the CITY table that has a CountryCode of 'USA' and a population larger than 100000. , Query the names of all American cities in CITY with populations larger than 120000. Problem Query a count of the number of cities in CITY having a Population larger than 100,000. The FROM clause specifies Apr 7, 2021 · 0 My database has a table named customer with data in the following columns: id, first_name, last_name, and city. The following query lists all countries in North and South America and their number of cities with city population larger than 100,000. Sep 24, 2017 · As far as I know there's no SQL syntax for "select the maximum population and then get the name field from the same row" (it's not quite clear what this would do anyway because there can be more than one country with a population equal to the maximum). a column of one or more rows and others. Revising the Select Query II Query the NAME field for all American cities in the CITY table with populations larger than 120000. id order by population desc ) x group by 1 -- assumes id column of country table is column number 1 Rather than returning an aggregate for each group, this non-standard grouping (not all non-aggregated columns are grouped by) returns the first row for each group, so by Jul 12, 2025 · The query first groups data by Product and calculates the total quantity sold using SUM (). This database has two tables: city and country. How do I find the name of the city with the highest population (in syntax)? I've heard SQL Server is a little bit different from Referring to the world database, what will the following SQL statement do? SELECT CountryCode, COUNT ( CountryCode ) FROM City GROUP BY CountryCode; Question options: Summarize the population, by taking the average of the population of all cities, in each country using CountryCode in the City Table Will count the number of cities in each country as listed in the City Table. common. If there is more than one smallest or largest city, choose the one that comes first when ordered alphabetically. Combine HAVING with other aggregate functions for more complex queries. We List of cities in India by population This is a list of the most populous cities in India. SELECT country. Query all columns for all American cities in the CITY table with --populations larger than 100000. Dec 9, 2024 · Hi I have a question about search, how to query over 10000 item, I know some api about search after, scroll, from size, but I want to achieve the ability to select the page I want after querying 10000 items, like this &hellip; May 29, 2019 · First create a slicer for year using date column and then create a simle table where you count number of customer_ids and apply a advanced filter using sales as data column for greater than 'n'. If there is more than one smallest or The complete guide to SQL Greater Than. The CITY table is described as follows: Solution: SELECT * FROM CITY WHERE POPULATION >= 100000 AND COUNTRYCODE ="USA" Explanation: The SELECT statement is used to query data from a database. I am new to SQL. Here are some of my work on HackerRank exercises. Input Format The CITY table is described as follows: SELECT COUNT (name) FROM city WHERE population > 100000 Revising Aggregations - The Count Function Query a count of the number of cities in CITY having a Population larger than 100 000. The CITY table is described as follows: Sep 11, 2024 · Describe the bug _impl. Samantha was tasked with calculating the average monthly salaries for all employees in Jun 30, 2018 · So I'm using SQL Server with two columns named City and Population. Problem Statement : Query all columns for all American cities in the CITY table with populations larger than 100000. name, COUNT (city. towardsdataengineering. country_id = c. E 18 82 Query the NAME field for all American cities in the CITY table with populations larger than 120000 The CountryCode for America is USA 1 select FROM CITY 2 WiERE The CITY table is described as follows CITY Field Type ID NUMBER NAME VARCHAR2 (17) COUNTRYCODE VARCHAR2 (3) DISTRICT VARCHAR2 (20) POPULATION NUMBER Upload Code as File Aug 4, 2017 · Distinct is necessary if you want a distinct count of states for the country having cities. Input Format The CITY table is described as… You do not need to do nesting necessarily. CountryName, Count (*) AS Number FROM Users INNER JOIN Countries ON Users. Complete the two fields below to see a complete list. For example, you can use the COUNT function in the SELECT statement to get the number of employees, the number of employees in each department, the number of employees who hold a specific job, etc. CountryId GROUP BY Countries. Contribute to ozzieliu/HackerRank development by creating an account on GitHub. The CITY table is described as follows: Revising the Select Query I HackerRank Solution in SQL SELECT * FROM CITY WHERE COUNTRYCODE = 'USA' AND POPULATION > 100000; Study with Quizlet and memorise flashcards containing terms like b. You can use: SELECT TOP 1 city, COUNT(*) AS population FROM Customer GROUP BY city ORDER BY population DESC So just use the query you have already written to derive the population by city, but select only the top result and make sure you order by population in descending order. I have a table like this: district city state population d1 c1 s1 2000 d2 c1 s1 10000 d3 c1 s1 400000 d1 c2 s2 500000 I want to count the cities having population greater than 410000. POPULATION) FROM CITY JOIN COUNTRY ON CITY. (In modern times, city status is awarded for secular reasons but without reference to size. The CountryCode for America… 317 efficient solutions to HackerRank problems. Query a count of the number of cities in CITY having a Population larger than 100000 . Nov 13, 2021 · I have a problem with a query. Task Query the NAME field for all American cities in the CITY table with populations larger than 120000. CountryCode WHERE IsOfficial = 'T' GROUP BY Name HAVING COUNT (Language) > 3; -- 23. In other words, if N is the number of city entries in station, and N1 is the number of distinct city names in station, write a query to find the value of N-N1 from station. I am trying to pull the countries that have more than 5 cities. Mega-cities: 10M and more Extra Large Cities: population 5M to 10M Large Cities: population 1M to 5M Mid-size Cities: population 500,000 to 1M Small Cities: population under 500,000 Mega-cities: 10M and more Shanghai, China (24,150,000) Lagos, Nigeria (21,000,000) Population estimates produced by the U. Input Format: The CITY table is described as follows: Jul 31, 2024 · Welcome to Ray Vision! In today's tutorial, we tackle a HackerRank SQL challenge: counting the number of cities in a CITY table where the population is larger than 100,000. what should the SQL query for it? Apr 6, 2025 · Query all columns for all American cities in the CITY table with populations larger than 100000. Edit and search again. SELECT district FROM CITY WHERE countrycode = 'JPN'; # Q6) Query all columns for all American cities in the CITY table with populations larger than 100000. We could not find a ZIP Code™ with the information you provided. * means all… Jul 17, 2021 · Query all columns for all American cities in the CITY table with populations larger than 100000. Query a count of the number of cities in CITY having a Population larger than 100,000. Oct 21, 2021 · Counting the total number of orders by a customer in the last few days, the number of unique visitors who bought a museum ticket, or the number of employees in a department, can all be done using the COUNT() function. Use the BETWEEN operator. Jul 5, 2021 · HackerRank-Aggregation-Revising Aggregations - The Count Function less than 1 minute read Revising Aggregations - The Count Function Query a count of the number of cities in CITY having a Population larger than 100,000. Referring to the world database, what will the following SQL statement do? SELECT CountryCode, COUNT ( CountryCode ) FROM City GROUP BY CountryCode; Question options: Summarize the population, by taking the average of the population of all cities, in each country using CountryCode in the City Table Will count the number of cities in each country as listed in the City Table. Jul 30, 2023 · Solution: select * from city where countrycode = 'USA' and population>100000; 2. The CITY table is described as follows: Revising Aggregation - The Count function Problem Query a count of the number of cities in CITY having a Population larger than 100,000. This is what I did SELECT co. true### 1. If more than one address matches the information provided, try narrowing your search by entering a street address and, if applicable, a unit number. The CITY table is described as follows: Jul 25, 2020 · HackerRank SQL Revising Aggregations — The Count Function Problem: Query a count of the number of cities in CITY having a Population larger than 100,000. g. Some of these cities were merged into another city. (10 points) Query all columns for all American cities in the CITY table with populations larger than 100000. May 12, 2023 · Subscribed 0 343 views 1 year ago Query a count of the number of cities in CITY with populations larger than 100,000more — The Count Function Query a count of the number of cities in CITY having a Population larger than . Is HAVING supported in all SQL databases? Apr 28, 2024 · 2. Then you could use a CTE to get the country with the largest number of cities. The CITY table is described as follows: About Query a count of the number of cities in CITY having a Population larger than 100000. SELECT * FROM CITY WHERE COUNTRYCODE='USA' AND POPULATION >100000; Nov 7, 2015 · I currently have a query where it returns the total number of accounts each customer holds, but how do I make it so that it returns only customers who has more than 1 account? SELECT C. Only include countries with more than 5 customers: Jul 23, 2025 · In this article, we will discuss the overview of SQL query and our main focus will be on how to Find an Employee whose salary is equal to or greater than a specific number in SQL with the help of examples. Taking the query at face value: SELECT * FROM db. Feb 11, 2018 · Save this answer. and more. Basic SQL Select Query of Hacker Rank. The CountryCode for America is USA SOLUTION 1: select*FROM CITY WHERE COUNTRYCODE = 'USA' AND POPULATION Sep 14, 2010 · Use the HAVING, not WHERE clause, for aggregate result comparison. Return country ID and number of cities. */ SELECT count (population) FROM city WHERE population > 100000; /* Question 3. Aug 19, 2023 · SELECT * FROM CITY WHERE COUNTRYCODE='USA' AND POPULATION > 100000; 2. #table The `CITY` table is described as follows: | Field | Type Give names, states, and areas of cities with names ending with 'City' and with areas greater than 10 but less than 50. From the following table, write a SQL query to find big cities name, population and area. Question: Query all columns for all American cities in the CITY table with populations larger than 100000 . I have a database called world. id) AS count_cities_100k FROM country LEFT JOIN city ON city. The CITY table is described as follows: Oct 13, 2020 · HackerRank SQL Basic Select Revising the Select Query I Problem Query all columns for all American cities in the CITY table with populations larger than 100000. Right now I have: SELECT Country. If you are the owner, log in to Cloudflare for domain renewal options. a table, b. CountryId = Countries. For example, city status in the United Kingdom historically arose from its place in the ecclesiastic hierarchy. Show activity on this post. To-Do: Use count (*) would … We define an employee's total earnings to be their monthly worked, and the maximum total earnings to be the maximum total earnings for any employee in the Employee table. Study with Quizlet and memorize flashcards containing terms like Create a list in alphabetical order of names of customers with more than $10 million in annual revenue, Give names, states, and areas of cities with names ending with 'City' and with areas greater than 10 but less than 50. Given we’re returning all cities, the most populous city is repeated in those cases where there’s more than one city within a district. But, before we jump into some real-world SQL COUNT() examples, take a look at the sample syntax for using the COUNT() function. word))>1 which of course is so wrong and super overloading when table is big. Jan 15, 2025 · 9. What are some best practices for using HAVING with SQL COUNT ()? Ensure correct placement of HAVING after GROUP BY. e. , Give names and average monthly revenue of customers having annual revenue Nov 27, 2021 · 3. The '*' symbol indicates that we want to select all columns from the table, and the WHERE clause filters the results to only include cities that meet our specified criteria. . (10 points) Your tasked to create a database with the Apr 30, 2021 · I am currently searching for a SQL query that does the following: I have a table of all cities worldwide with their countries and population. The CITY table is described as follows: Solution: SELECT * FROM CITY WHERE POPULATION >100000 AND COUNTRYCODE='USA'; Dec 3, 2020 · This time we got only those cities that satisfied both Population > 100000 OR District = 'Overijssel' and Name > 'Overijssel'. The CITY table is described as follows: Answer SELECT * FROM CITY WHERE POPULATION > 100000 AND COUNTRYCODE = 'USA' Revising the Select Query 1: Easy Query all columns for all American cities in the CITY table with populations larger than 100000. Query the NAME field for all American cities in the CITY table with populations larger than 120000. table HAVING COUNT(someField) > 1 Ideally, there should be a GROUP BY defined for proper valuation in the HAVING clause, but MySQL does allow hidden columns from the GROUP BY Is this in preparation for a unique constraint on someField? Looks like it should be Write a query to list countries that have more than three official languages. I want to make a SELECT query that will return the number of words that get repeated at least two times in the table (like hello) SELECT COUNT(id) FROM words WHERE (SELECT COUNT(words. Study with Quizlet and memorize flashcards containing terms like Query all columns for all American cities in CITY with populations larger than 100000. Here’s how to approach this question To locate all American cities in the CITY table with populations larger than 100000, use a SQL SELECT statement to filter rows based on the given conditions for COUNTRYCODE and POPULATION. This resulted in only one city from Overijssel being returned, as opposed to two in the previous query. hackerrank. com/challenges/revising-the-select-query/problem?isFullScreen=true In this HackerRank Functions in SQL problem solution, Query a count of the number of cities in CITY having a Population larger than 100000. The CITY table is described as follows: Jan 1, 2025 · Population statistics in maps and charts for cities, agglomerations and administrative divisions of all countries of the world. The CITY table is described as follows: Find the difference between the total number of CITY entries in the table and the number of distinct CITY entries in the Solution: select * from city where countrycode = 'USA' and population > 100000; Query the NAME field for all American cities in the CITY table with populations larger than 120000. one row for each vendor that shows the largest balance due for any of the vendor's invoices, but only if that balance due is larger than the average balance due for all invoices, c. Jun 13, 2020 · Write a query which will return all city name, country name and number of customers with more customers than the average number of customers of all cities in ascending order. Problem Query all columns for all American cities in the CITY table with populations larger than 100000. Input Format The CITY table is described as follows: Aug 11, 2023 · HackerRank SQL Practice- Aggregation (Aggregate functions) Revising Aggregations — The Count Function Query a count of the number of cities in CITY having a Population larger than 100,000. The table below contains the following information: Name of city Name of state The city population as of July 1, 2024, as estimated by the United States Census Bureau [1] The city's peak population based on highest The SQL COUNT function is an aggregate function that returns the number of rows returned by a query. The COUNTRYCODE for the USA is 'USA'. World Cities by Population This is a list of world cities grouped by population. if each country has more than one city per state then distinct matters Apr 1, 2024 · Problem Statement: Query all columns for American cities in the CITY table with populations larger than 100000. ) Thus, some cathedral cities in England (e. The CITY table is described as follows: CITY Field Type ID NUMBER NAME VARCHAR2 (17) COUNTRYCODE VARCHAR2 (3) DISTRICT VARCHAR2 (20) POPULATION NUMBER 8. e. select name from city where population My solutions to various hacker-rank SQL problems using DB2 syntax - chhayac/SQL-hackerrank-problems May 15, 2025 · /*Query the two cities in STATION with the shortest and longest CITY names, as well as their respective lengths (i. Learn the syntax, parameters, use cases and find practical examples in the Hightouch SQL Dictionary. This is my query: SELECT continent, name, population FROM country HAVING population = MAX (population); Somehow it returns 0 rows. The HAVING clause filters the groups to include only those with SUM(Quantity) greater than 5. --Q1. COUNTRYCODE = COUNTRY. Input Format The CITY table is described as follows: My solution Nov 5, 2022 · Query a count of the number of cities in CITY having a Population larger than 100000. Revising the SQL query 2: Query the NAME field for all American cities in the CITY table with populations larger than 120000 Query a count of the number of cities in CITY having a Population larger than 100 000. The CITY table is described as follows: Query a count of the number of cities in CITY with populations larger than 100,000. Go to Cloudflare Dashboard Oct 27, 2019 · Query a count of the number of cities in CITY having a Population larger than 100000 SELECT COUNT(NAME) FROM CITY WHERE POPULATION > 100000 Jun 22, 2023 · 1. Input Format The CITY table is described as follows: Solution in MYSQL select count (*) from CITY WHERE POPULATION Question: 7. S. _query ignores result_record_count if it has to paginate. Name, city. Apr 9, 2025 · 📌 Problem Statement Write an SQL query to return the count of cities from the CITY table where the population is greater than 100,000. HackerRank-SQL HackerRank SQL Problem Solving Questions With Solutions 1. 10. (joins, group by, having) SELECT Name AS Country, COUNT (Language) AS Number_of_Official_Languages FROM country JOIN countrylanguage ON country. For example if you call query (where="1=1", result_record_count=10000, return_all_features=False), assuming 10000 is greater than the max record count Dec 20, 2024 · SQL JOINS Exercises on HR Database, Practice and Solution: From the following table, write a SQL query to find the name of the country, city, and departments, which are running there. Dec 24, 2016 · Query all columns for all American cities in CITY with populations larger than 100000. This series is the revision of SQL concepts. The CountryCode for America is USA. Apr 20, 2022 · Detailed information on topic 1. List of United States Cities by Population, List of largest cities in the United States, 100 Largest US Cities By Population, 100 Largest Cities by State and Population Aug 23, 2023 · This query returns all cities, as well as listing out the most populous city within each district. Revising the Select Query I | Easy | HackerRank Query all columns for all American cities in the CITY table with populations larger than 100000. kdovqso surgn actdor sjnlvf lkumxb jupou vpugxw dmimxi plaz xwceekzu