When is it reasonable to use union compatibility between two select statements that are made from the same table?
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When is it reasonable to use union compatibility between two select statements that are made from the same table?
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- When are there circumstances in which it is appropriate to employ union compatibility between two select statements that are made from the same table?Why would you ever want to claim that two select statements on the same table are union-compliant with one another?In what context does it make sense to claim that two select statements from the same table are union compatible with one another?
- In what circumstances does it make sense to assume that two select statements from the same database are consistent with one another?What is the main difference between UNION and UNION ALL?In what circumstances is it appropriate to assert that two select statements from the same table are union-compliant?
- Define Declare Rule?INTRODUCTION: In this assignment, you will demonstrate using a database with a menu based program HOW TO SUBMIT YOUR ASSIGNMENT At the top of each of your C++ programs, you should have at least four lines of documentation: Program name (the C++ file name(s)), Author (your name), Date last updated, and Purpose (a brief description of what the program accomplishes). Here is an example: /* Program name: jbtictactoe.cpp* Author: John Doe* Date last updated: 5/1/2017* Purpose: Play the game of Tic-Tac-Toe*/ ASSIGNMENT: SaleCo Write a program that continues a menu based program for the SaleCo database. You have been given a starter file SaleCo.cpp download. This file contains code for running a query to view an invoice. Add to the starter file the code to connect to SaleCo.db download, and to view the information for a customer. You should fill in the viewCustomer function. This function should run a query that gets the customer ID and first and last names for all customers in the database…Asap code distinction requirements here.