1A. What is the difference between the = operator %3D and == operator? 1B. Is the y*=x+5 expression equivalent to y=y*x+5 expression? 1C. In the x+-y--z expression, which operator is the subtraction operator, and which one is the unary minus operator?

1A. What is the difference between the = operator %3D and == operator? 1B. Is the y=x+5 expression equivalent to y=yx+5 expression? 1C. In the x+-y--z expression, which operator is the subtraction operator, and which one is the unary minus operator?

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter12: Subqueries And Merge Statements

Section: Chapter Questions

Problem 3MC

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Question

Kindly answer items 1A, 1B and 1C. Thank you.

1A. What is the difference between the = operator
%3D
and
= operator?
==
1B. Is the y*=x+5 expression equivalent to
y=y*x+5 expression?
1C. In the x+-y--z expression, which operator is
the subtraction operator, and which one is the
unary minus operator?

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