b) The following is the HTML code of a form: Student id: Student address: The form is associated with a table "studenť’ in Oracle database. The table contains attributes "id" (primary key) and “name", which are strings with suitable lengths. A function connectDB(), which contains suitable username and password and returns an Oracle connection ID, has already been written in student.php and it can be used to connect to the database. (i) Write PHP code into student.php to transfer the data input in the form to the database table if both of the input fields are non-empty. Display an erTor message the query cannot be executed successfully. if (ii) Add PHP code into student.php to get the "id" from the form and display the id together with the name retrieved from the database if the "id" field is non-empty but the "name" field is. If the name cannot be retrieved, display a suitable message.
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- In java create an application to manage your data base information the database is already created in mysql tables, the tables are fill, So the user can use your database application user friendly Retrieve all data: Given a table name, retrieve all data from the table and present it to the user. Average: Given a table name and a column name, return the average of the column. Here the assumption is that the column type will be numeric (e.g., cost column). Insert: Given a table name, your program should show the column names of that table and ask the users to input new data to the table. In case of errors, your program should directly show the MySQL errors to the users. Assumption 1: Users will enter data according to the database constraints. Assumption 2: Users will input one record at a time. Delete: Given a table name, your program should show the column names of that table and ask the users to input data that they want to delete. Assumption 1: Users will enter data according to the…calculate_new_balance Given a starting balance (a number), and a list of transaction tuples, calculate the final balance for an account. Transaction tuples are of the shape ("description", amount, "withdrawal") , or ("description", amount, "deposit"). The last entry in the tuple will be either "withdrawal" or "deposit". Every withdrawal decreases the balance of the account by the specified amount, and every deposit increases the balance. The return value is the new account balance, as a number. (which could be negative) Sample calls should look like: >>> calculate_new_balance(100, [("payday", 20, "deposit"), ("new shoes", 50, "withdrawal"), ("illicit winnings", 200, "deposit")])270>>> calculate_new_balance(100, [])100Open 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.
- Population Database You will find a program named CreateCityDB.java in Starting Out with Java: Early Objects (6th Edition) Chapter 15 Source Code. Compile and run the program (SEE BELOW). The program will create a Java DB database named CityDB. The CityDB database will have a table named City, with the following columns: Column Name Data Type CityName CHAR (50) Primary Key Population DOUBLE The CityName column stores the name of a city, and the Population column stores the population of that city. After you run the CreateCityDB.java program, the City table will contain 20 rows with various cities and their populations. Next, write a JavaFX application called PopulationDemo that connects to the CityDB database and allows the user to click any of the following operations: Sort the list of cities by population, in ascending order. Sort the list of cities by population, in descending order. Sort the list of cities by name. Get the total population of all the cities. Get the…{ 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?What are the urlopen and urlretrieve functions?
- When the Search button is pressed in the screen depicted, the getSales() function from the PosDAO.java class is called, the parameters of this function are the from date and to date.The getSales () function should return a list of Pos objects that matches the criteria specified, Note this function has to perform two INNER JOINs in to combine all three tables in order to get all the needed data to fill the Pos object. The database schema is also depicted. The PosDAO, Product, SalesDetails and Pos classes are shown BELOW Write the getSales() function public class PosDAO { private Connection conn; PreparedStatement stmt = null; public boolean openConnection(){ try { // db parameters String url = "jdbc:mysql://localhost:4306/swen2005"; String user = "root"; String password = ""; // create a connection to the database conn = DriverManager.getConnection(url, user, password); if (conn!= null){ return true;…SQL: Create a SQL query that uses an uncorrelated subquery and no joins to display the descriptions for products provided by a vendor in area code 615. Remember, the main difference between a correlated subquery and uncorrelated subquery is that, in a correlated subquery, the inner query is dependent upon the outer query, while, with an uncorrelated query, the inner query does not depend upon the outer query. Instead, it runs just once. You should NOT use union, minus, or intersect in this query. The outer query will use the PRODUCT table and the inner query will use the VENDOR table [hint: you should have 9 records of output]. My code: select p_descript from product where (select v_areacode from vendor where v_areacode = '615' ; I am getting this error, problem is I can't see what is missing any assistance is appreciated. ORA-00936: missing expressionWrite a PHP application that creates a class that allows connection to a specific MySQL database, allowing the specification (by setting some properties) of the location server, user, password, and database name. Give a example of instantiating it (creating an object) and using it in an application with a MySQL table
- //Need typed version please in text not image You are working with a database that stores information about suppliers, parts and projects. The Supply relation records instances of a Supplier supplying a Part for a Project. The schema for the database used in this question is as follows: ( primary keys are shown underlined, foreign keys in bold). SUPPLIER (SNo, SupplierName, City) PART (PNo, PartName, Weight) PROJECT (JobNo, JobName, StartYear, Country) SUPPLY (SNo, PNo, JobNo, Quantity) Provide relational algebra (NOT SQL) queries to find the following information. NOTE: You can use the symbols s, P, etc or the words ‘PROJECT’, ‘RESTRICT’ etc . do not need to try to make efficient queries – just correct ones. Where you use a join, always show the join condition. List the name of any part that was not used on a project that commenced in 2020. List the name of any part that has been supplied to all projects that commenced in 2020.The Save Transaction button depicted in the screen attached is used to save relevant data to the sales table and the salesdetails tables from the depicted schema. When this button is clicked it calls the saveTransaction() function that is within the PosDAO class, it passes to this function an ArrayList of salesdetails object, this list contains the data entered into the jTable which is the products and qty being sold.Write the saveTransaction function. You are to loop through the items and get the total sales, next you are to insert the current date and the total sales into the sales table. Reminder that the sales table SalesNumber field is set to AUTO-INCREMENT, hence the reason for only entering the total sales and current date in sales table.Part A: MySQL Query/Exec Create StudentsDB database in MySQL server with the following table: Table: Students uid int, Primary Key, Auto Increment studentID varchar(8), Unique name varchar(50) major varchar(50) passedCredits int CGPA float Implement the following PHP scripts as required below: php: the script should display student’s info (StudentID, name, major, credits passed and CGPA) in HTML table with appropriate title for each column. Student cells/rows should be highlighted as follows: Condition Highlight Color Student At Risk: CGPA < 2.0 Red for CGPA Cell Expected to graduate: Passed Credits >=115 Yellow for Passed Credits Cell Outstanding Student: CGPA = 3.5 or above Green for the entire Student Row php: This script should display all students’ names and major. Each student will be identified by a checkbox (define the checkbox name as a numeric array holding the uid). The…