Computers and Technology, 15.10.2020 08:01, nickykardashian
Consider the following relations containing information about authors, articles and which author authored which papers (a paper can have several co-authors):
Author(authorID, name)
Authoring(articleID, authorID)
Article(articleID, title, venue, year, month)
Express the following queries in Algebra
a. List the articles authored by John Smith
b. List the co-authors of John Smith (authors who co-authored an article with John Smith)
c. List all the articles published last year
d. List pairs of articles that have the same titles with different article IDs
e. List the authors with no article in the database
f. List the authors who have all their papers co-authored with John Smith
g. List the papers authored by only one author (without aggregate functions)
h. Which author co-authored at least 1 paper with every author (without aggregate functions)
i. List the authors who have all their papers co-authored only with John Smith (No other co-author)
Answers: 2
Computers and Technology, 21.06.2019 14:00, mpete1234567890
Var add = function( x, y ) { return ( x + y ); } alert( add (5, 3) ); 11. (refer to code example 2.) the function a. accepts 2 parameters and returns 2 values. b. accepts 2 parameters and returns 1 value. c. accepts 2 parameters and does not return a value. d. does not accept a parameter and returns 1 value.
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How might the success of your campaign be affected if you haven’t carefully completed all field data or if you accidentally insert the wrong merge field in the document?
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Computers and Technology, 23.06.2019 15:00, hunteryolanda82
Based on the current economic situation do you expect the employment demand for graduating engineers to increase or decrease? explain the basis for your answer. with a significant economic recovery, what do you think will happen to future enrollments in graduating engineering programs?
Answers: 1
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