7- Fully explain the following program and query.1 girlage (a, 10).2 girlage (b, 20).3 girlage (c, 30).45 lists (A) -67findall(x, girlage(_, X), A).89 mysum([1,0).10 mysum ([HT],N) :-1112good comment 0mysum (T,M), N is H+ M.lists(A), mysum(A, N).A = [10, 20, 30],N = 60?-lists (A), mysum (A, N).

7- Fully explain the following program and query. 1 girlage (a, 10). 2 girlage (b, 20). 3 girlage (c, 30). 4 5 lists (A) - 6 7 findall(x, girlage(_, X), A). 9 mysum ([],0). 10 mysum ([HT],N) - 11 12 mysum (T,M), N is H + M. lists(A), mysum(A, N). A = [10, 20, 30], N=60 lists (A), mysum (A, N).

7- Fully explain the following program and query. 1 girlage (a, 10). 2 girlage (b, 20). 3 girlage (c, 30). 4 5 lists (A) - 6 7 findall(x, girlage(_, X), A). 9 mysum ([],0). 10 mysum ([HT],N) - 11 12 mysum (T,M), N is H + M. lists(A), mysum(A, N). A = [10, 20, 30], N=60 lists (A), mysum (A, N).

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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Question

7- Fully explain the following program and query.
1 girlage (a, 10).
2 girlage (b, 20).
3 girlage (c, 30).
4
5 lists (A) -
6
7
findall(x, girlage(_, X), A).
8
9 mysum([1,0).
10 mysum ([HT],N) :-
11
12
good comment 0
mysum (T,M), N is H+ M.
lists(A), mysum(A, N).
A = [10, 20, 30],
N = 60
?-
lists (A), mysum (A, N).

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