Write a #save instance method to create or update a given post in the DB: class Post def initialize(attributes = {}) @id = attributes[:id] @url = attributes[:url] @votes = attributes[:votes] || 0 @title = attributes[:title] end def save # TODO: write this method using SQLite3::Database instance DB end end
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Write a #save instance method to create or update a given post in the DB: class Post def initialize(attributes = {}) @id = attributes[:id] @url = attributes[:url] @votes = attributes[:votes] || 0 @title = attributes[:title] end def save # TODO: write this method using SQLite3::
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- Write a Java program that connects to a SQLite database. Create a table called Horses with the following fields: id (integer): a primary key and not null name (text) breed (text) height (real) birthday (text) Next, insert the following data row into the Horses table: id: 1 name: 'Babe' breed: 'Quarter Horse' height: 15.3 birthday: '2015-02-10' Output all records from the Horses table. Ex: With the above row inserted, the output should be: All horses: (1, 'Babe', 'Quarter Horse', 15.3, '2015-02-10') LabProgram.java public class LabProgram { public static void main(String[] args) { /* Type your code here */ // FIXME 1: Call the connect() method to connect to the database // FIXME 2: Create the sql statement string to create a table and pass it to creatTable() method // FIXME 3: Create the sql statement to Insert the horse data into the databasem // and pass it to the insertRow() method // FIXME 4: Print out all horses…Implement the following clauses on a database of your choice and produce results. (Writequery and add screen shot of your implementation)iv) Viewv) Group Byvi) Order Byvii) Like kindly answer the all parts i already posted 2 times this one question but there are are total 7 parts so kindly solve 4 prts.Code a chain of MongoDB methods that retrieves documents from MondoDB collection named WEB322the only documents that are selected are the ones with value 211 in the semester field the only fields of the selected documents that are retrieved are firstName and lastNamemake sure the _id field is NOT retrievedsort the selected documents by lastName in ascending sequencestore the result to an array named resultassume the connection between the program and database had already been established and the name of the database object is db
- Any comments i could add to this? package attendance; import java.sql.Connection;import java.sql.DriverManager;import java.sql.SQLException;import java.sql.Statement; public class SqliteDB {Connection conn = null;Statement stmt = null;public SqliteDB() throws ClassNotFoundException {//try to connect with dbtry {Class.forName("org.sqlite.JDBC");// db parametersString url = "jdbc:sqlite:C:/sqlite/db/attendance.db";// create a connection to the databaseconn = DriverManager.getConnection(url);System.out.println("Connection to SQLite has been established.");} catch (SQLException e) {System.out.println(e.getMessage());}}public void executeQuery(String query) {try {this.stmt = conn.createStatement();stmt.execute(query);}catch (Exception e) {System.out.println(e);}}public void closeConnection() {try {this.conn.close();}catch( Exception e) {System.out.println(e);}}}5.9 LAB - Database programming with Java (SQLite) Complete the Java program to create a Horse table, insert one row, and display the row. The main program calls four methods: createConnection() creates a connection to the database. createTable() creates the Horse table. insertHorse() inserts one row into Horse. selectAllHorses() outputs all Horse rows. Complete all four methods. Method parameters are described in the template. Do not modify the main program. The Horse table should have five columns, with the following names, data types, constraints, and values: Name Data type Constraints Value Id integer primary key, not null 1 Name text 'Babe' Breed text 'Quarter horse' Height double 15.3 BirthDate text '2015-02-10' The program output should be: All horses: (1, 'Babe', 'Quarter Horse', 15.3, '2015-02-10') This lab uses the SQLite database rather than MySQL. Both SQLite and MySQL Connector/J implement the JDBC API. Consequently, the API is as…5.9 LAB - Database programming with Java (SQLite) Complete the Java program to create a Horse table, insert one row, and display the row. The main program calls four methods: createConnection() creates a connection to the database. createTable() creates the Horse table. insertHorse() inserts one row into Horse. selectAllHorses() outputs all Horse rows. Complete all four methods. Method parameters are described in the template. Do not modify the main program. The Horse table should have five columns, with the following names, data types, constraints, and values: Name Data type Constraints Value Id integer primary key, not null 1 Name text 'Babe' Breed text 'Quarter horse' Height double 15.3 BirthDate text '2015-02-10' The program output should be: All horses: (1, 'Babe', 'Quarter Horse', 15.3, '2015-02-10') This lab uses the SQLite database rather than MySQL. Both SQLite and MySQL Connector/J implement the JDBC API. Consequently, the API is as…
- create database GA2gouse GA2gocreate table salesman(salesman_id int primary key, name varchar(30), city varchar(20), commission varchar(30));insert into salesman (salesman_id, name, city, commission) values (5001, 'James Hoog', 'New York', 0.15); insert into salesman (salesman_id, name, city, commission) values (5002, 'Nail Knite', 'Paris', 0.13); insert into salesman (salesman_id, name, city, commission) values (5005, 'Pit Alex', 'London', 0.11); insert into salesman (salesman_id, name, city, commission) values (5006, 'Mc Lyon', 'Paris', 0.14); insert into salesman (salesman_id, name, city, commission) values (5007, 'Paul Adam', 'Rome', 0.13); insert into salesman (salesman_id, name, city, commission) values (5003, 'Lauson Hen', 'San Jose', 0.12); Create table Customer (customer_id int primary key, cust_name varchar(30), city varchar(10), grade varchar(30), salesman_id varchar(30)(select salesman_id from salesman); why does my sql server code not work, at the customer table?create database GA2gouse GA2gocreate table salesman(salesman_id int primary key, name varchar(30), city varchar(20), commission varchar(30));insert into salesman (salesman_id, name, city, commission) values (5001, 'James Hoog', 'New York', 0.15); insert into salesman (salesman_id, name, city, commission) values (5002, 'Nail Knite', 'Paris', 0.13); insert into salesman (salesman_id, name, city, commission) values (5005, 'Pit Alex', 'London', 0.11); insert into salesman (salesman_id, name, city, commission) values (5006, 'Mc Lyon', 'Paris', 0.14); insert into salesman (salesman_id, name, city, commission) values (5007, 'Paul Adam', 'Rome', 0.13); insert into salesman (salesman_id, name, city, commission) values (5003, 'Lauson Hen', 'San Jose', 0.12); Create table Customer (customer_id int primary key, cust_name varchar(30), city varchar(10), grade varchar(30), salesman_id int,CONSTRAINT FK_salesman_id FOREIGN KEY (salesman_id) REFERENCES salesman(salesman_id));insert into customer…create database GA2gouse GA2gocreate table salesman(salesman_id int primary key, name varchar(30), city varchar(20), commission varchar(30));insert into salesman (salesman_id, name, city, commission) values (5001, 'James Hoog', 'New York', 0.15); insert into salesman (salesman_id, name, city, commission) values (5002, 'Nail Knite', 'Paris', 0.13); insert into salesman (salesman_id, name, city, commission) values (5005, 'Pit Alex', 'London', 0.11); insert into salesman (salesman_id, name, city, commission) values (5006, 'Mc Lyon', 'Paris', 0.14); insert into salesman (salesman_id, name, city, commission) values (5007, 'Paul Adam', 'Rome', 0.13); insert into salesman (salesman_id, name, city, commission) values (5003, 'Lauson Hen', 'San Jose', 0.12); Create table Customer (customer_id int primary key, cust_name varchar(30), city varchar(10), grade varchar(30), salesman_id varchar(30),CONSTRAINT FK_salesman_id FOREIGN KEY (salesman_id) REFERENCES salesman(salesman_id)); i keep getting…
- create database GA2gouse GA2gocreate table salesman(salesman_id int primary key, name varchar(30), city varchar(20), commission varchar(30));insert into salesman (salesman_id, name, city, commission) values (5001, 'James Hoog', 'New York', 0.15); insert into salesman (salesman_id, name, city, commission) values (5002, 'Nail Knite', 'Paris', 0.13); insert into salesman (salesman_id, name, city, commission) values (5005, 'Pit Alex', 'London', 0.11); insert into salesman (salesman_id, name, city, commission) values (5006, 'Mc Lyon', 'Paris', 0.14); insert into salesman (salesman_id, name, city, commission) values (5007, 'Paul Adam', 'Rome', 0.13); insert into salesman (salesman_id, name, city, commission) values (5003, 'Lauson Hen', 'San Jose', 0.12); Create table Customer (customer_id int primary key, cust_name varchar(30), city varchar(10), grade varchar(30), salesman_id int,CONSTRAINT FK_salesman_id FOREIGN KEY (salesman_id) REFERENCES salesman(salesman_id));insert into customer…create database GA2gouse GA2gocreate table salesman(salesman_id int primary key, name varchar(30), city varchar(20), commission varchar(30));insert into salesman (salesman_id, name, city, commission) values (5001, 'James Hoog', 'New York', 0.15); insert into salesman (salesman_id, name, city, commission) values (5002, 'Nail Knite', 'Paris', 0.13); insert into salesman (salesman_id, name, city, commission) values (5005, 'Pit Alex', 'London', 0.11); insert into salesman (salesman_id, name, city, commission) values (5006, 'Mc Lyon', 'Paris', 0.14); insert into salesman (salesman_id, name, city, commission) values (5007, 'Paul Adam', 'Rome', 0.13); insert into salesman (salesman_id, name, city, commission) values (5003, 'Lauson Hen', 'San Jose', 0.12); Create table Customer (customer_id int primary key, cust_name varchar(30), city varchar(10), grade varchar(30), salesman_id varchar(30),CONSTRAINT FK_salesman_id FOREIGN KEY (salesman) REFERENCES salesman(salesman_id)); i keep getting this…create database GA2gouse GA2gocreate table salesman(salesman_id int primary key, name varchar(30), city varchar(20), commission varchar(30));insert into salesman (salesman_id, name, city, commission) values (5001, 'James Hoog', 'New York', 0.15); insert into salesman (salesman_id, name, city, commission) values (5002, 'Nail Knite', 'Paris', 0.13); insert into salesman (salesman_id, name, city, commission) values (5005, 'Pit Alex', 'London', 0.11); insert into salesman (salesman_id, name, city, commission) values (5006, 'Mc Lyon', 'Paris', 0.14); insert into salesman (salesman_id, name, city, commission) values (5007, 'Paul Adam', 'Rome', 0.13); insert into salesman (salesman_id, name, city, commission) values (5003, 'Lauson Hen', 'San Jose', 0.12); Create table Customer (customer_id int primary key, cust_name varchar(30), city varchar(10), grade varchar(30), salesman_id int,CONSTRAINT FK_salesman_id FOREIGN KEY (salesman_id) REFERENCES salesman(salesman_id));insert into customer…