Answered: The SQLiteOpenHelper and SQLiteCursor…

The SQLiteOpenHelper and SQLiteCursor classes are described, with a focus on how they may be used to perform create, read, update, and delete (CRUD) actions on a SQLite database.

Programming with Microsoft Visual Basic 2017

8th Edition

ISBN:9781337102124

Author:Diane Zak

Publisher:Diane Zak

Chapter11: Sql Server Databases

Section: Chapter Questions

Problem 1MQ3

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Open your text editor and create a new document named model.php model.php will contain functions that will connect to a database potentially return PDO statementobjects to the controller for processing. updateMessagesfunction updateMessages($id)This method will take a single parameter of id which is the saved id from the last or latest message displayed. It will conditionally select from the table “messages”, id, name, message, and time. The condition is that the field id is greater than the parameter for id. The return is the PDOStatement object with the row data from the query.
Blood Donor Management System The blood donation clinic is looking at creating a database to store the donors’ details. The clinic is hoping to start by adding donor names and assign them unique IDs. They then want to add their details and relevant information such as blood type, first name, last name and contact number. Write an interactive program that allows a clinic administrator to store donors’ details on the SQLite 3 database with the following specifications: 2.1 The program must have a menu for the administrator to select one of the following:• Register a donor• Display the record of all registered donors• Update the existing record• Delete a record• Exit the program 2.2 The program should display feedback messages for any successfully executed task and use exception handlers for any errors produced in the code. 2.3 The program must have the following functions:• The donor_register function to add donors• The donor_update function to update the donor details• The donor_remove…
#Fill in comments to spec. import sqlite3from contextlib import closing from Objects import Player, Lineup conn = None def connect():global connif not conn:DB_FILE = "player_db.sqlite"conn = sqlite3.connect(DB_FILE)conn.row_factory = sqlite3.Row def close():if conn:conn.close() def get_players():return None #remove this line when code is added.# SQL statement to select all 7 fields for all players # Use a with statement to execute the query # Create a lineup object# use a loop to populate the lineup object with player objects# return the lineup object def get_player(playerID):return None #remove this line when code is added.# SQL statement to select all 7 fields for a player # Use a with statement to execute the query & return a player object if the player exists def add_player(player):return None #remove this line when code is added.# SQL statement to insert 6 fields for a player added to the table # Use a with statement to execute the query def delete_player(player):return None…
on 12 When database version in SQLite database is decreased then helper class will call et red O a. onCreate() d out of O b. onDowngrade() g question O c. onUpgrade() O d. onClose()
Develop a C++ program to connect to a MS Access database (“Student.accdb” – attached to this assignment) and use SQL commands to manipulate its records. You may use MS Access, SQLite or another DB engine and drivers. Scope The user will be given a menu to choose from the following options: Press (S) to select and display all students records Press (D) to delete a student by ID# Press (U) to update a student’s graduation year Press (I) to insert a new student Press (Q) to quit For user option# 1, first display the header and then display every record on a separate line. See example below Student ID First Name Last Name Major Graduation Year 1 Joe Doe Computer Science 2018 2 Emma Smith Electrical Engineering 2019 3 Juan Perez Marketing 2019 For user option#2, confirm back to the user whether the deletion was successful or the ID provided was not found in the students records. For user option#3, prompt the user to enter a student ID, validate if the student ID exists…
{ String str = tf5.getInt("ID"); Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); Connection con = DriverManager.getConnection("jdbc:sqlserver://NOMBUSO1806:1433;databaseName= Employee ATM", "NOMBUSO1806", "mysql1234"); // write your database username and password PreparedStatement st = con.prepareStatement("select * from Employees where ID=?"); // Search with ATM ID st.setString(1, str); ResultSet rs = st.executeQuery(); // Excuting Query if (rs.next()) { String s = rs.getString(1); String s1 = rs.getString(2); String s2 = rs.getString(3); // Sets Records in TextFields. tf1.setText(s); tf2.setText(s1); tf3.setText(s2); my getInt() is throwing an error that the method is not found. what should i do?
A computer store uses a database to track inventory. The database has a table named Inventory , with the following columns: ProductID INTEGER PRIMARY KEY NOT NULL ProductName TEXT QtyOnHand INTEGER Cost REAL Also assume that the cur variable references a Cursor object for the database. Write Python code that uses the Cursor object to execute an SQL statement that deletes the row in the Inventory table in which ProductID is equal to 12.
You are in charge of creating a small database for a store that sells goods so that it can keep track of its customers and their orders. Write an SQL statement to create a customer table containing the following information: Every customer has a unique ID, that should not be empty and set as the primary key The customer's first and last name that shouldn't be empty The phone number that shouldn't be empty The email, which could be empty. The address, which could be empty. Write a SQL statement to create the table Orders, which will keep track of customer orders, using the following information: Each order has a unique ID, which shouldn't be empty and should be set as the primary key. The customer's ID and should not be empty and assign it as the foreign key of the customer ID in table customer. The Items purchased by the customer and shouldn't be left empty. The amount of each item, and should not be empty The price of the items, and should not be empty
Database: CUSTOMER (CustomerID, LastName, FIrstName, Phone, EmailAddress) PURCHASE (InvoiceNumber, InvoiceDate, PreTaxAmount, CustomerID) PURCHASE_ITEM (InvoiceNumber, InvoiceLineNumber, Item Number, RetailPrice) ITEM (ItemNumber, ItemDesciption, Cost, ArtistLastName, ArtistFirstName) Write an SQL statement to show which cutomers bought which items, and include any items that have not been sold. Include CUSTOMER.LastName, CUSTOMER.FirstName, IvoiceNumber, InvoiceDate, ItemNumber, ItemDescription, ArtistLastName, and ArtistFirstName,. Use a join using JOIN ON syntax, and sort the results by ArtistLastName and ArtistFirstName in ascending order. Note that in Microsoft Access this require multiple queries. From Database Concepts 9th Ed. (Kroenke)
In Senior Project Website, the user requests the website to search for previous senior projects, the website displays the search web form, the user inputs the keywords to be used for the search process, the user submits the search criteria to the website, and the website requests a remote database to search for senior projects that fulfill the requested criteria (keywords). The remote database returns back a Boolean value (indicating if the search is successful or not) and a list of found senior projects (the list is empty if not successful), If the search is successful, the website displays the list of received senior projects, else, the website displays error dialog box indicating that no projects were found. Q2. For Senior Project Website System described above, students are required to conduct the following task: a) Design the Sequence Diagram of Senior Project Website System described above.
Make use of Windows Presentation Foundation (WPF) to develop a Stock Management System thatwill manage the items being stocked in a warehouse. The application has 3 modules named: Addproduct, List Product, and Print Bar Code.Add Product:This module is used for adding new products to the system. It will require some basic details likeProduct category, Product Name, cost price, selling price, quantity and bar code. The details willbe saved into a SQL database named StockSystemdb. One other interesting feature of this systemis the alert system.You can set a particular quantity for each item. Now a notification or alert will be given to the userif a particular item’s quantity gets below the set quantity. This will help the user in gettingnotifications of the items getting low in stock.List Product:This module lists all the items present in the database of the Stock Management System. It will haveoptions to edit the details of each item or delete a particular item from the list.Print Bar…
import sqlite3 from sqlite3 import Error # Creates connection to sqlite in-memory database def create_connection(): """ Create a connection to in-memory database :return: Connection object """ try: conn = sqlite3.connect(":memory:") return conn except Error as e: print(e) # YOUR CODE HERE # Use sqlite3.connect(":memory:") to create connection object return conn # query to create the table table_sql = """ CREATE TABLE Horses ( id integer PRIMARY KEY NOT NULL, name text, breed text, height real, birthday text ); """ # query to insert data into the table ins_sql = """INSERT INTO Horses VALUES(1,'Babe','Quarter Horse',15.3,'2015-02-10'); """ # query to fetch all data from the table fetch_sql = """SELECT * FROM Horses;""" # creating db connection conn = create_connection() # fetching a cursor from the connection c = conn.cursor() # executing statement to create table c.execute(table_sql) # executing statement to…