subject

Write appropriate SQL DDL statements for declaring the UNIVERSITY relational database schema. Choose the appropriate action (reject, cascade, set to NULL, set to default) for each referential integrity constraint, both for the deletion of a referenced tuple and for the update of a primary key attribute value in a referenced tuple. 4- (15 points) Write an INSERT, UPDATE, DELETE SQL Data Manipulation Language statements for a table of your choice for the UNIVERSITY database.

ansver
Answers: 1

Another question on Computers and Technology

question
Computers and Technology, 21.06.2019 22:00
Some of your friends have gotten into the burgeoning field of time-series data mining, in which one looks for patterns in sequences of events that occur over time. purchases at stock exchanges"what's being bought" are one source of data with a natural ordering in time. given a long sequence s of such events, your friends want an efficient way to detect certain "patterns" in them"for example, they may want to know if the four events buy yahoo, buy ebay, buy yahoo, buy oracle occur in this sequence s, in order but not necessarily consecutively. they begin with a collection of possible events (e.g., the possible transactions) and a sequence s of n of these events. a given event may occur multiple times in s (e.g., yahoo stock may be bought many times in a single sequence s). we will say that a sequence s is a subsequence of s if there is a way to delete certain of the events from s so that the remaining events, in order, are equal to the sequence s . so, for example, the sequence of four events above is a subsequence of the sequence buy amazon, buy yahoo, buy ebay, buy yahoo, buy yahoo, buy oracle their goal is to be able to dream up short sequences and quickly detect whether they are subsequences of s. so this is the problem they pose to you: give an algorithm that takes two sequences of events"s of length m and s of length n, each possibly containing an event more than once"and decides in time o(m + n) whether s is a subsequence of s.
Answers: 3
question
Computers and Technology, 24.06.2019 00:00
Visualizing a game of “tag” to remember the meaning of contagious
Answers: 3
question
Computers and Technology, 24.06.2019 13:50
Write a program that performs a simple n-body simulation, called "jumping leprechauns." this simulation involves n leprechauns, numberd 1 to n. it maintains a gold value g_i for each leprechaun i, which begins with each leprechaun starting out with a million dollars worth of gold, that is, g_i = 1000000 for each i = 1,. in addition, the simulation also maintains, for each leprachaun,i, a place on the horizon, which is represented as a double-precision floating point number, x_i. in each iteration of the simulation, the simulation processes the leprachauns in order. processing a leprachaun i during its iteration begins by computing a new place on the horizon for i, which is determined by the assignment:
Answers: 3
question
Computers and Technology, 24.06.2019 14:30
When workers demonstrate patience, are able to manage there emotions, and get along with other employees, which skills are being displayed?
Answers: 1
You know the right answer?
Write appropriate SQL DDL statements for declaring the UNIVERSITY relational database schema. Choose...
Questions
question
English, 14.01.2020 03:31
question
History, 14.01.2020 03:31
question
Mathematics, 14.01.2020 03:31
question
Mathematics, 14.01.2020 03:31
Questions on the website: 13722363