Before using SQL statements, which objects should be checked ifthey are null or not and throw SQLException in case of being null?DataSource and Connection objectDataSource and JDBC objectConnection and PreparedStatement objectO Database and Connection object

Given that Before using SQL statement which objects should be checked if they are null or not and…

Before using SQL statements, which objects should be checked if they are null or not and throw SQLException in case of being null? O DataSource and Connection object O DataSource and JDBC object O Connection and PreparedStatement object O Database and Connection object

Before using SQL statements, which objects should be checked if they are null or not and throw SQLException in case of being null? O DataSource and Connection object O DataSource and JDBC object O Connection and PreparedStatement object O Database and Connection object

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter1: Overview Of Database Concepts

Section: Chapter Questions

Problem 5HOA: Access path A database table is composed of records and fields hold data. Data is stored in records....

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For the following database scheme Employee(empNo,fName.IName.address.DOB.sex,position.deptNo) Department(deptNo.deptName,mgrEmpNo) Project(projNo.projName,deptNo) WorksOn(empNo.projNo.dateWorked,hoursWorked) Write an SQL statement to find all the details of employees who are female
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
PATHS is a table that contains information about paths on a number line. The structure of PATHS is as follows, where x1 and x2 represent that there is a path from Coordinate x1 to Coordinate x2 (You can't move from Coordinate x2 to Coordinate x1 ). NAME ΤΥΡE NULLABLE X1 INT FALSE X2 INT FALSE Problem Please write an SQL statement that returns the beginning and end point of each path in PATHS . Sort them by the value of the beginning point in ascending order. Constraints • In the case where a direct path from Coordinate a to Coordinate b is available, no path from Coordinate b to Coordinate a will be given. |x1-x2| = 1 • No path will overlap with one another. Example Suppose that PATHS is as follows: x1 x2 1 2 2 3 4 7 7 6 This table can be visualized as follows: START END END START 7 8. 9 Therefore, your SQL statement must return the following: start end 1 4 8 6
SQL A programmer wrote code with the underlying SQL to check if a user can access / log into a system. SELECT * FROM users WHERE login = ‘ replaced by the input login ‘ AND password = ‘ replaced by the input password ‘ What is the query if login is ‘OR true -- and password is Hello? Write the query. What does the query above return? What is the name of this security issue?
Code SQL
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)
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.
{ 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?
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se SQL program Server2014 ... A company undertakes a number of projects, the employees work on it, and during the process of analyzing the system we found the following points: The company is made up of a number of departments (the department number, which is a single number, the name of the department, the department's website) There are employees (the employee's number is a single number, his name, address, salary, and job) The employee belongs to one department only, and each department has more than one employee. There are projects (the project number, which is a single number, the name of the project, the project site) Each project has a specific department that it manages, and the department may manage it more than one project. More than one employee works in the project, and the employee may work in more than one project. Each employee has a number of work hours per week in each project. Required: 4. Create a Trigger that indicates the end of the entry operation on any of…