Computers and Technology, 02.03.2021 03:20 shaniafuller29
Relational calculus is said to be a declarative language. In contrast, relational algebra is said to be a procedural language. Explain what is the distinction in your own words. Besides, provide a concrete example of a pair of equivalent relational algebra and calculus query where one is clearly declarative and the other is clearly procedural
Answers: 2
Computers and Technology, 22.06.2019 12:10
Linux is distributed under gnu gpl. why is this important? a. it ensures that only torvalds can profit from the sale of linux b. it prevents unknowledgeable users from downloading programs they don't know how to operate. c. it provides protection for the developers who created linux. d. it states that anyone can copy, modify, and share the program if changes are made public.
Answers: 1
Computers and Technology, 22.06.2019 21:40
Develop a function to create a document in the mongodb database “city” in the collection “inspections.” be sure it can handle error conditions gracefully. a. input -> argument to function will be set of key/value pairs in the data type acceptable to the mongodb driver insert api call b. return -> true if successful insert else false (require a screenshot)
Answers: 2
Computers and Technology, 22.06.2019 22:00
What is the name of the option in most presentation applications with which you can modify slide elements? 1. the option enables you to modify a slide element in most presentation applications.
Answers: 3
Computers and Technology, 23.06.2019 09:20
How to print: number is equal to: 1 and it is odd number number is equal to: 2 and it is even number number is equal to: 3 and it is odd number number is equal to: 4 and it is even number in the console using java using 1 if statement, 1 while loop, 1 else loop also using % to check odds and evens
Answers: 3
Relational calculus is said to be a declarative language. In contrast, relational algebra is said to...
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