Heranca polimorfismo

modulo4/INTROKNEX/.gitignore

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+node_modules
+package-lock.json
+build
+.env

modulo4/INTROKNEX/package.json

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+{
+  "name": "introknex",
+  "version": "1.0.0",
+  "description": "Aula Quarta",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "tsc && node ./build/index.js",
+    "dev": "clear && ts-node-dev ./src/index.ts"
+  },
+  "keywords": [],
+  "author": "Raoni Lobo",
+  "license": "ISC",
+  "devDependencies": {
+    "@types/cors": "^2.8.12",
+    "@types/express": "^4.17.13",
+    "ts-node-dev": "^2.0.0",
+    "typescript": "^4.7.4"
+  },
+  "dependencies": {
+    "@types/knex": "^0.16.1",
+    "cors": "^2.8.5",
+    "dotenv": "^16.0.1",
+    "express": "^4.18.1",
+    "knex": "^2.2.0",
+    "mysql": "^2.18.1"
+  }
+}

modulo4/INTROKNEX/src/index.ts

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+import express, { Express } from "express";
+import cors from "cors";
+import { AddressInfo } from "net";
+import knex from "knex";
+import dotenv from "dotenv";
+import { Request, Response } from "express";
+
+dotenv.config();
+
+export const connection = knex({
+  client: "mysql",
+  connection: {
+    host: process.env.DB_HOST,
+    port: 3306,
+    user: process.env.DB_USER,
+    password: process.env.DB_PASS,
+    database: process.env.DB_NAME,
+  },
+});
+
+const app: Express = express();
+app.use(express.json());
+app.use(cors());
+
+// Exercicio 01
+
+const getActorByName = async (name: string): Promise<any> => {
+  const result = await connection.raw(`
+    SELECT * FROM Actor WHERE name = '${name}'
+    `);
+
+  return result[0][0];
+};
+// (async () => {
+// console.log(await getActorByName("Tony Ramos") )
+// })()
+
+const countActors = async (gender: string): Promise<any> => {
+  const result = await connection.raw(`
+      SELECT COUNT(*) as count FROM Actor WHERE gender = "${gender}"
+    `);
+
+  const count = result[0][0].count;
+  return count;
+};
+// (async () => {
+//   console.log(await countActors("female"));
+// })();
+
+const createActor = async (
+  id: string,
+  name: string,
+  salary: number,
+  dateOfBirth: Date,
+  gender: string
+): Promise<void> => {
+  await connection
+    .insert({
+      id: id,
+      name: name,
+      salary: salary,
+      birth_date: dateOfBirth,
+      gender: gender,
+    })
+    .into("Actor");
+};
+
+const updateActor = async (id: string, salary: number): Promise<any> => {
+    await connection("Actor")
+    .update({
+        salary:salary,
+    })
+    .where("id", id)
+}
+
+const deleteActor = async (id:string,): Promise<any> => {
+    await connection("Actor")
+    .delete()
+    .where("id", id)
+}
+
+const avgGenderActor = async (gender:string): Promise<any> => {
+   const result = await connection("Actor")
+    .avg("salary as average")
+    .where({gender});
+
+   return result[0].average 
+}
+
+app.get("/actor", async (req: Request, res: Response) => {
+    try {
+      const count = await countActors(req.query.gender as string);
+      res.status(200).send({
+        quantity: count,
+      });
+    } catch (err) {
+      res.status(400).send({
+        message: err.message,
+      });
+    }
+  });
+
+
+const server = app.listen(process.env.PORT || 3003, () => {
+  if (server) {
+    const address = server.address() as AddressInfo;
+    console.log(`Server is running in http://localhost: ${address.port}`);
+  } else {
+    console.error(`Failure upon starting server.`);
+  }
+});

modulo4/INTROKNEX/tsconfig.json

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+{
+  "compilerOptions": {
+    /* Visit https://aka.ms/tsconfig to read more about this file */
+
+    /* Projects */
+    // "incremental": true,                              /* Save .tsbuildinfo files to allow for incremental compilation of projects. */
+    // "composite": true,                                /* Enable constraints that allow a TypeScript project to be used with project references. */
+    // "tsBuildInfoFile": "./.tsbuildinfo",              /* Specify the path to .tsbuildinfo incremental compilation file. */
+    // "disableSourceOfProjectReferenceRedirect": true,  /* Disable preferring source files instead of declaration files when referencing composite projects. */
+    // "disableSolutionSearching": true,                 /* Opt a project out of multi-project reference checking when editing. */
+    // "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
+
+    /* Language and Environment */
+    "target": "es6",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
+    // "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
+    // "jsx": "preserve",                                /* Specify what JSX code is generated. */
+    // "experimentalDecorators": true,                   /* Enable experimental support for TC39 stage 2 draft decorators. */
+    // "emitDecoratorMetadata": true,                    /* Emit design-type metadata for decorated declarations in source files. */
+    // "jsxFactory": "",                                 /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h'. */
+    // "jsxFragmentFactory": "",                         /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
+    // "jsxImportSource": "",                            /* Specify module specifier used to import the JSX factory functions when using 'jsx: react-jsx*'. */
+    // "reactNamespace": "",                             /* Specify the object invoked for 'createElement'. This only applies when targeting 'react' JSX emit. */
+    // "noLib": true,                                    /* Disable including any library files, including the default lib.d.ts. */
+    // "useDefineForClassFields": true,                  /* Emit ECMAScript-standard-compliant class fields. */
+    // "moduleDetection": "auto",                        /* Control what method is used to detect module-format JS files. */
+
+    /* Modules */
+    "module": "commonjs",                                /* Specify what module code is generated. */
+    "rootDir": "./src",                                  /* Specify the root folder within your source files. */
+    // "moduleResolution": "node",                       /* Specify how TypeScript looks up a file from a given module specifier. */
+    // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
+    // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
+    // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
+    // "typeRoots": [],                                  /* Specify multiple folders that act like './node_modules/@types'. */
+    // "types": [],                                      /* Specify type package names to be included without being referenced in a source file. */
+    // "allowUmdGlobalAccess": true,                     /* Allow accessing UMD globals from modules. */
+    // "moduleSuffixes": [],                             /* List of file name suffixes to search when resolving a module. */
+    // "resolveJsonModule": true,                        /* Enable importing .json files. */
+    // "noResolve": true,                                /* Disallow 'import's, 'require's or '<reference>'s from expanding the number of files TypeScript should add to a project. */
+
+    /* JavaScript Support */
+    // "allowJs": true,                                  /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
+    // "checkJs": true,                                  /* Enable error reporting in type-checked JavaScript files. */
+    // "maxNodeModuleJsDepth": 1,                        /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */
+
+    /* Emit */
+    // "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
+    // "declarationMap": true,                           /* Create sourcemaps for d.ts files. */
+    // "emitDeclarationOnly": true,                      /* Only output d.ts files and not JavaScript files. */
+    "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
+    // "outFile": "./",                                  /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */
+    "outDir": "./build",                                   /* Specify an output folder for all emitted files. */
+    "removeComments": true,                           /* Disable emitting comments. */
+    // "noEmit": true,                                   /* Disable emitting files from a compilation. */
+    // "importHelpers": true,                            /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
+    // "importsNotUsedAsValues": "remove",               /* Specify emit/checking behavior for imports that are only used for types. */
+    // "downlevelIteration": true,                       /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
+    // "sourceRoot": "",                                 /* Specify the root path for debuggers to find the reference source code. */
+    // "mapRoot": "",                                    /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,                          /* Include sourcemap files inside the emitted JavaScript. */
+    // "inlineSources": true,                            /* Include source code in the sourcemaps inside the emitted JavaScript. */
+    // "emitBOM": true,                                  /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
+    // "newLine": "crlf",                                /* Set the newline character for emitting files. */
+    // "stripInternal": true,                            /* Disable emitting declarations that have '@internal' in their JSDoc comments. */
+    // "noEmitHelpers": true,                            /* Disable generating custom helper functions like '__extends' in compiled output. */
+    // "noEmitOnError": true,                            /* Disable emitting files if any type checking errors are reported. */
+    // "preserveConstEnums": true,                       /* Disable erasing 'const enum' declarations in generated code. */
+    // "declarationDir": "./",                           /* Specify the output directory for generated declaration files. */
+    // "preserveValueImports": true,                     /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */
+
+    /* Interop Constraints */
+    // "isolatedModules": true,                          /* Ensure that each file can be safely transpiled without relying on other imports. */
+    // "allowSyntheticDefaultImports": true,             /* Allow 'import x from y' when a module doesn't have a default export. */
+    "esModuleInterop": true,                             /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */
+    // "preserveSymlinks": true,                         /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
+    "forceConsistentCasingInFileNames": true,            /* Ensure that casing is correct in imports. */
+
+    /* Type Checking */
+    "strict": true,                                      /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                            /* Enable error reporting for expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,                         /* When type checking, take into account 'null' and 'undefined'. */
+    // "strictFunctionTypes": true,                      /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
+    // "strictBindCallApply": true,                      /* Check that the arguments for 'bind', 'call', and 'apply' methods match the original function. */
+    // "strictPropertyInitialization": true,             /* Check for class properties that are declared but not set in the constructor. */
+    // "noImplicitThis": true,                           /* Enable error reporting when 'this' is given the type 'any'. */
+    // "useUnknownInCatchVariables": true,               /* Default catch clause variables as 'unknown' instead of 'any'. */
+    // "alwaysStrict": true,                             /* Ensure 'use strict' is always emitted. */
+    // "noUnusedLocals": true,                           /* Enable error reporting when local variables aren't read. */
+    // "noUnusedParameters": true,                       /* Raise an error when a function parameter isn't read. */
+    // "exactOptionalPropertyTypes": true,               /* Interpret optional property types as written, rather than adding 'undefined'. */
+    // "noImplicitReturns": true,                        /* Enable error reporting for codepaths that do not explicitly return in a function. */
+    // "noFallthroughCasesInSwitch": true,               /* Enable error reporting for fallthrough cases in switch statements. */
+    // "noUncheckedIndexedAccess": true,                 /* Add 'undefined' to a type when accessed using an index. */
+    // "noImplicitOverride": true,                       /* Ensure overriding members in derived classes are marked with an override modifier. */
+    // "noPropertyAccessFromIndexSignature": true,       /* Enforces using indexed accessors for keys declared using an indexed type. */
+    // "allowUnusedLabels": true,                        /* Disable error reporting for unused labels. */
+    // "allowUnreachableCode": true,                     /* Disable error reporting for unreachable code. */
+
+    /* Completeness */
+    // "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
+    "skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
+  }
+}

modulo4/aprofundamento-sql/aprofundamentoSQL.Md

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+```
+
+-- --------------------------------
+-- Aprofundamento SQL
+
+SET SQL_SAFE_UPDATES = 0;
+
+-- Exercicio 01 
+-- a) Altera tabela, deletando a coluna de salário dos atores.
+-- b) Altera o nome da coluna na tabela de GENDER para SEX e aceita até 6 caracters.
+-- c) altera a coluna GENDER para aceitar até 255 caracters
+-- d) Agora,  altere a coluna gender da tabela ACTOR para que ele aceite strings com até 100 caracteres
+ALTER TABLE Actor CHANGE gender gender VARCHAR(100);
+
+
+-- Exercicio 02
+-- a) Escreva uma query que atualize o nome e a data de nascimento do ator com o id 003
+UPDATE Actor SET name = "Moacyr Franco", birth_date =" 1935-01-28" WHERE id = "003";
+-- b) Escreva uma query que atualize o nome da atriz Juliana Paes para JULIANA PAES. Então, escreva outra query para voltar ao nome anterior.
+UPDATE Actor SET name = UPPER(name) WHERE id = "005";
+-- c) Escreva uma query que atualize todas as informações do ator com o id 005
+UPDATE Actor SET name = "Lima Duarte", birth_date = "1939-02-10", salary = 900000, gender = "male" WHERE id = "005";
+-- d) Escreva uma query em que você tente atualizar um dado da tabela que não existe (com um id inválido, por exemplo). Teste, anote e explique o resultado. 
+UPDATE Actor SET name = "Lima Duarte", birth_date = "1939-02-10", salary = 900000, gender = "male" WHERE id = "009";
+-- atualiza mas não modifica a tabela.
+
+-- Exercicio 03
+-- a) Escreva uma query que apague a atriz com o nome Fernanda Montenegro (Moacyr Franco)
+DELETE FROM Actor WHERE name = "Moacyr Franco";
+-- b) Escreva uma query que apague todos os atores (do gênero male) com o salário maior do que R$1.000.000,00
+DELETE FROM Actor WHERE gender = "male" AND salary > 1000000;
+
+-- Exercicio 04
+SELECT COUNT(*) as quantidade FROM Actor;
+
+SELECT COUNT(*) FROM Actor WHERE gender = "female";
+
+-- a) Escreva uma query que pegue o maior salário de todos os atores e atrizes
+SELECT MAX(salary) FROM Actor;
+
+-- b) Escreva uma query que pegue o menor salário das atrizes
+SELECT MIN(salary) FROM Actor WHERE gender = "female";
+
+-- c) Escreva uma query que pegue a quantidade de atrizes
+SELECT COUNT(*) as quantidade_atrizes FROM Actor WHERE gender = "female";
+
+-- d) Escreva uma query que pegue a soma de todos os salários
+SELECT SUM(salary) FROM Actor;
+
+-- Exercicio 05
+-- a) Releia a última query. Teste-a. Explique o resultado com as suas palavras
+SELECT COUNT(*), gender FROM Actor GROUP BY gender;
+-- Separa as quantidades nos grupos listados
+
+-- b) Faça uma query que retorne somente o id e o nome dos atores em ordem decrescente alfabética
+SELECT id, name FROM Actor ORDER BY name DESC;
+
+-- c) Faça uma query que retorne todos os atores ordenados pelo salário
+SELECT * FROM Actor ORDER BY salary;
+
+-- d) Faça uma query que retorne os atores com os três maiores salarios
+SELECT * FROM Actor ORDER BY salary DESC LIMIT 3;
+
+-- e) Faça uma query que retorne a média de salário por gênero
+SELECT AVG(salary), gender FROM Actor GROUP BY gender;
+
+-- Exercicio 06
+SELECT * from Filmes;
+-- a) Altere a tabela de `Movie` e adicione um novo parâmetro: `playing_limit_date` que indique a data limite em que o filme será passado no cinema.
+ALTER TABLE Filmes ADD playing_limit_date DATE;
+
+-- b) Altere a tabela de Movie para que o parâmetro rating possa aceitar valores não inteiros, como, por exemplo, uma avaliação 8.5.
+
+ALTER TABLE Filmes CHANGE avaliacao avaliacao FLOAT NOT NULL;
+
+-- c) Atualize dois filmes de tal forma que tenhamos um que ainda esteja em cartaz e um que já tenha saído
+UPDATE Filmes SET playing_limit_date = "2021-03-02" WHERE id=001;
+UPDATE Filmes SET playing_limit_date = "2022-10-02" WHERE id=005;
+
+-- d) Delete algum dos filmes, mas guarde o id. Tente fazer uma query para atualizar a sinopse desse filme que você acabou de deletar (usando o mesmo id). Anote o resultado e explique.
+
+DELETE FROM Filmes WHERE id = "001";
+UPDATE Filmes SET sinopse = "Troca de lugar com esposa" WHERE id = "001";
+-- Ele atualiza, mas não renderiza na tabela.
+
+```