Answer:
The correct answer to the following question will be Option A.
Explanation:
For such a standards-compliant perspective, the WITH CHECK OPTION clause could be provided to prohibit additions to rows under which the select statement WHERE clause is sometimes not valid.
- This also prevents changes to rows under which the WHERE clause becomes accurate but perhaps the change will result in it not being valid.
- It helps to prevent updating of a row throughout a view process if this causes the row to still be omitted from those in the display.
Answer: (A) full backup
Explanation: A backup strategy is a term used to describe the various effective approach engaged in creating a backup for data or information.
A FULL BACK UP IS THE VARIOUS APPROACH AND SYSTEMS PUT IN PLACE BY A COMPUTER USER OR AN INFORMATION TECHNOLOGY EXPERT IN ORDER TO CREATE AN ADDITIONAL SAMPLE OR COPY OF AN INFORMATION OR A DATA IN S SINGLE BACKUP.
I believe the answer is a. CDMA rooms can store much more information than DVDS. good luck
Answer:
Explanation:
For the Program plan:
1. Two lists are structurally equal if they have the same list structure, although their atoms may be different.
2. So we are going to write a function that will check if elements in both lists at same position are atoms or not.
3. If yes then it should return true else false.
Program:
#lang scheme
( define (structurally-equal list1 list2)
(cond ((and (null? list1) (null? list2)) #t)
((or (null? list1) (null? list2)) #f)
((and (atom? (car list1)) (atom? (car list2)))
(structurally-equal (cdr list1) (cdr list2)))
((or (atom? (car list1)) (atom? (car list2))) #f)
(else (and (structurally-equal (car list1) (car list2))
(structurally-equal (cdr list1) (cdr list2) )))))
( define (atom? x) (not (or (pair? x) (null? x))))