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AS number_of_authors FROM research_papers rp LEFT JOIN author_papers ap ON rp.paper_id = ap.paper_id GROUP BY rp.paper_id, rp.paper_title"); + connection.query("SELECT COUNT(ap.paper_id) AS total_papers_by_female_authors FROM authors a JOIN author_papers ap ON a.author_id = ap.author_id a.gender = 'female';"); + connection.query("SELECT AVG(h_index) AS avg_h_index FROM authors GROUP BY university"); + connection.query("SELECT a.university, COUNT(ap.paper_id) AS total_papers FROM authors a JOIN author_papers ap ON a.author_id = ap.author_id GROUP BY a.university"); + connection.query("SELECT university, MIN(h_index), MAX(h_index) FROM authors GROUP BY university"); +}; \ No newline at end of file diff --git a/Week2/assignment/Joins.js b/Week2/assignment/Joins.js new file mode 100644 index 000000000..b1aec7df7 --- /dev/null +++ b/Week2/assignment/Joins.js @@ -0,0 +1,12 @@ +import mysql from 'mysql2/promise'; + +const connection = await mysql.createConnection({ + host: 'localhost', + user: 'hyfuser', + password: 'hyfpassword' +}); + +export const joins = async() => { + connection.query("SELECT author_name, mentor FROM authors"); + connection.query("SELECT authors.author_name, research_papers.paper_title FROM authors LEFT JOIN author_papers ON authors.author_id = author_papers. author_id LEFT JOIN research_papers ON research_papers.paper_id = author_papers.paper_id"); +}; \ No newline at end of file diff --git a/Week2/assignment/Keys.js b/Week2/assignment/Keys.js new file mode 100644 index 000000000..cd0fecfa3 --- /dev/null +++ b/Week2/assignment/Keys.js @@ -0,0 +1,65 @@ +import mysql from 'mysql2/promise'; +import {relationships} from "./Relationships.js"; +import {aggreg} from "./Aggregate-Functions.js"; + +const connection = await mysql.createConnection({ + host: 'localhost', + user: 'hyfuser', + password: 'hyfpassword', + database: 'week2' +}); + +try { + await connection.query('DROP DATABASE IF EXISTS week2'); + await connection.query('CREATE DATABASE IF NOT EXISTS week2'); + await connection.query('USE week2'); + + await connection.query( + `CREATE TABLE IF NOT EXISTS authors ( + author_id INT AUTO_INCREMENT PRIMARY KEY, + author_name VARCHAR(50) NOT NULL, + university VARCHAR(50), + date_of_birth DATE NOT NULL, + h_index INT NOT NULL, + mentor INT, + gender ENUM('male', 'female', 'other'), + FOREIGN KEY (mentor) REFERENCES authors(author_id) + )` + ); + + await connection.query( + `CREATE TABLE IF NOT EXISTS research_papers ( + paper_id INT AUTO_INCREMENT PRIMARY KEY, + paper_title VARCHAR(100) NOT NULL, + conference TEXT + )` + ); + + await connection.query( + `CREATE TABLE IF NOT EXISTS author_papers ( + author_id INT, + paper_id INT, + PRIMARY KEY (author_id, paper_id), + FOREIGN KEY (author_id) REFERENCES authors(author_id), + FOREIGN KEY (paper_id) REFERENCES research_papers(paper_id) + )` + ); + + relationships(); + console.log('Tables created successfully!'); +} catch (error) { + console.error('Error creating tables:', error); +} finally { + await connection.end(); +} + + + + + + + + + + + diff --git a/Week2/assignment/Relationships.js b/Week2/assignment/Relationships.js new file mode 100644 index 000000000..380e6016f --- /dev/null +++ b/Week2/assignment/Relationships.js @@ -0,0 +1,99 @@ +import mysql from 'mysql2/promise'; + +const connection = await mysql.createConnection({ + host: 'localhost', + user: 'hyfuser', + password: 'hyfpassword', + database: 'week2' +}); + +export const relationships = async () => { + try { + await connection.query('USE week2'); + await connection.query(` + INSERT INTO authors (author_name, university, date_of_birth, h_index, gender) VALUES + ('Alice Smith', 'MIT', '1980-05-14', 32, 'female'), + ('Bob Johnson', 'Stanford', '1975-03-22', 40, 'male'), + ('Carol White', 'Harvard', '1982-07-11', 28, 'female'), + ('David Brown', 'Cambridge', '1990-01-09', 18, 'male'), + ('Eve Davis', 'Oxford', '1987-11-29', 35, 'female'), + ('Frank Miller', 'ETH Zurich', '1978-08-30', 30, 'male'), + ('Grace Wilson', 'Caltech', '1985-09-20', 25, 'female'), + ('Henry Moore', 'Princeton', '1991-04-17', 22, 'male'), + ('Ivy Taylor', 'Yale', '1983-02-13', 27, 'female'), + ('Jack Anderson', 'Columbia', '1986-06-06', 29, 'male'), + ('Karen Thomas', 'UCLA', '1979-12-19', 31, 'female'), + ('Leo Jackson', 'Toronto', '1988-10-23', 19, 'male'), + ('Mona Lewis', 'TUM', '1993-03-03', 21, 'female'), + ('Nina Harris', 'Sorbonne', '1990-09-09', 24, 'female'), + ('Oscar Martin', 'EPFL', '1984-04-04', 33, 'male'); + `); + + await connection.query(` + INSERT INTO research_papers (paper_title, conference) VALUES + ('Quantum AI', 'NeurIPS'), + ('Deep Learning Optimization', 'ICML'), + ('Neural Graphs', 'CVPR'), + ('Bioinformatics Trends', 'RECOMB'), + ('Genetic Algorithms', 'GECCO'), + ('Quantum Circuits', 'QIP'), + ('AI in Medicine', 'MedConf'), + ('Secure ML', 'IEEE S&P'), + ('Blockchain Systems', 'CryptoCon'), + ('Data Visualization', 'VIS'), + ('NLP Advancements', 'ACL'), + ('Ethics of AI', 'AAAI'), + ('Robotics Control', 'ICRA'), + ('Swarm Intelligence', 'ANTS'), + ('3D Vision', 'SIGGRAPH'), + ('Cloud Security', 'USENIX'), + ('Edge Computing', 'EdgeConf'), + ('IoT Protocols', 'IoTConf'), + ('Image Compression', 'ICIP'), + ('Virtual Reality', 'VRConf'), + ('BioNLP', 'EMNLP'), + ('AI+Law', 'LAWConf'), + ('Graph Theory AI', 'NeurIPS'), + ('Medical Robotics', 'MedConf'), + ('AI for Education', 'EDM'), + ('Data Ethics', 'FAT*'), + ('ML at Scale', 'BigDataConf'), + ('Vision & Language', 'CVPR'), + ('Quantum ML', 'QMLConf'), + ('Adversarial Attacks', 'BlackHat'); + `); + + await connection.query(` + INSERT INTO author_papers (author_id, paper_id) VALUES + (6, 8), + (6, 9), + (7, 10), + (8, 11), + (9, 12), + (10, 13), + (10, 14), + (11, 15), + (12, 16), + (12, 17), + (13, 18), + (14, 19), + (14, 20), + (15, 21), + (15, 22), + (5, 23), + (7, 24), + (8, 25), + (9, 26), + (11, 27), + (13, 28), + (2, 29), + (4, 30); + `); + + console.log('Data inserted successfully!'); + } catch (err) { + console.error('Error inserting data:', err); + } finally { + await connection.end(); + } +}; \ No newline at end of file diff --git a/Week2/assignment/package-lock.json b/Week2/assignment/package-lock.json new file mode 100644 index 000000000..fa1679008 --- /dev/null +++ b/Week2/assignment/package-lock.json @@ -0,0 +1,148 @@ +{ + "name": "assignment", + "version": "1.0.0", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": "assignment", + "version": "1.0.0", + "license": "ISC", + "dependencies": { + "assignment": "file:", + "mysql2": "^3.14.1" + } + }, + "node_modules/assignment": { + "resolved": "", + "link": true + }, + "node_modules/aws-ssl-profiles": { + "version": "1.1.2", + "resolved": "https://registry.npmjs.org/aws-ssl-profiles/-/aws-ssl-profiles-1.1.2.tgz", + "integrity": "sha512-NZKeq9AfyQvEeNlN0zSYAaWrmBffJh3IELMZfRpJVWgrpEbtEpnjvzqBPf+mxoI287JohRDoa+/nsfqqiZmF6g==", + "license": "MIT", + "engines": { + "node": ">= 6.0.0" + } + }, + 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