What is the effect of adding the question mark in the following declaration private decimal? _price; Question 20 options: a) adding ? makes _price variable accept values of any datatype (e.g. objec) b) adding ? makes _price variable hold a reference to the value it get assigned to. c) adding ? makes _price variable accept null d) B and C

What is the effect of adding the question mark in the following declaration private decimal? _price; Question 20 options: a) adding ? makes _price variable accept values of any datatype (e.g. objec) b) adding ? makes _price variable hold a reference to the value it get assigned to. c) adding ? makes _price variable accept null d) B and C

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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What is the ASSUME directive's purpose?
No need for explanation only the answer or what to write please and thank you
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