Datasets:

denxie

/

test_knowledge_ds

like 0

aggregation functions (COUNT, SUM, AVG, MIN, MAX, etc.), and HAVING clause

What are the top 5 suppliers by total value of parts supplied for aircraft manufacturing in 2020?

CREATE TABLE Suppliers (supplier_id INT, supplier_name VARCHAR(50), parts_supplied INT, total_value DECIMAL(10, 2), year INT); INSERT INTO Suppliers (supplier_id, supplier_name, parts_supplied, total_value, year) VALUES (1, 'Supplier-A', 500, 5000000, 2020), (2, 'Supplier-B', 300, 3500000, 2020), (3, 'Supplier-C', 800, 7000000, 2020), (4, 'Supplier-D', 250, 2200000, 2020);

aggregation

aerospace

analytics and reporting

SELECT supplier_name, SUM(total_value) as total_value_supplied FROM Suppliers WHERE year = 2020 GROUP BY supplier_name ORDER BY total_value_supplied DESC LIMIT 5;

Filters the Suppliers table based on year 2020, calculates the sum of total_value for each supplier_name, and returns the top 5 records.

generating reports, dashboards, and analytical insights

Aircraft manufacturing data, satellite deployment projects, flight safety records, and space exploration research.

basic SQL with a simple select statement

Count the number of aircraft produced by company XYZ

CREATE TABLE aircraft (id INT, model VARCHAR(50), manufacturer VARCHAR(50), production_year INT);

basic SQL

aerospace

analytics and reporting

SELECT COUNT(*) FROM aircraft WHERE manufacturer = 'XYZ';

This query counts the number of records in the aircraft table where the manufacturer is XYZ.

generating reports, dashboards, and analytical insights

Aircraft manufacturing data, satellite deployment projects, flight safety records, and space exploration research.

aggregation functions (COUNT, SUM, AVG, MIN, MAX, etc.), and HAVING clause

What is the maximum number of passengers for each aircraft model?

CREATE TABLE aircraft_specs (id INT, model VARCHAR(50), max_passengers INT); INSERT INTO aircraft_specs (id, model, max_passengers) VALUES (1, 'Boeing 737', 215), (2, 'Airbus A320', 220), (3, 'Boeing 787', 335);

aggregation

aerospace

analytics and reporting

SELECT model, MAX(max_passengers) as max_passengers FROM aircraft_specs GROUP BY model;

This SQL query groups the aircraft_specs table by model and calculates the maximum number of passengers for each aircraft model. It returns the result.

generating reports, dashboards, and analytical insights

Aircraft manufacturing data, satellite deployment projects, flight safety records, and space exploration research.