Question: Joins can be expensive in a key-value store, and difficult to express if the system does not support SQL or a similar declarative query language.

Joins can be expensive in a key-value store, and difficult to express if the system does not support SQL or a similar declarative query language. What can an application developer do to efficiently get results of join or aggregate queries in such a setting?

Step by Step Solution

★★★★★

3.61 Rating (155 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The developer can precompute the join or aggregate query as a m... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Database System Concepts Questions!

Solve the system of equations graphically. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent. y = 6x - 2 y = -1/3x - 2

Solve the system of equations graphically. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent. y = -x + 3 y = x - 1

Solve the system of equations graphically. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent. y = -x + 2 y = -3x + 4

True-False Questions 1. Normalizing accounting data refers primarily to eliminating errors and outliers, thus creating ?normal data.? 2. An important reason for normalizing data is to eliminate data...

There are two problems due this week (each worth 35 points) as follows. Case 5-1David L. Miller: Portrait of a White-Collar Criminal (page 144). In comprehensive paragraphs, answerrequirements 1?6....

INTERNATIONAL REVIEW OF L AW C OMPUTERS & TECHNOLOGY , VOLUME 11, N UMBER 2, P AGES 251-261, 1997 The Data Mart: A New Approach to Data Warehousing PAM ELA PIPE Introduction Vendors have recently...

Do some amendment and enhance the given research paper: Table of Content Abstract..3 Action Research.4 Research Methodology and Design...5 Literature Review: NoSQL Database7 Proposal.7 Iteration 1..8...

Database Administration CHAPTER OBJECTIVES I Understand the need for and importance of database I ttno'illI the meaning of ACID transaction administralin - Learn the tour 1992 ANSI standard isolation...

PROJ6000: Principles of Project Management Assessment Assessment 2 - this is actually a case study and its called a Individual Report: PMBoK versus PRINCE2 or Agile in contemporary projects . so one...

this is my assessment which are am going to send you and i need some things about my assessment : Adding some more detail and diving into the case study a bit deeper would really make your points...

An important why in which the Federal Reserve decreases the money supply is by selling bonds to the public. Using a supply and demand analysis for bonds, show what effect this action has on interest...

Two firms dominate the market for surgical sutures and compete aggressively with respect to research and development. The following payoff table depicts the profit implications of their different R&D...

Why micro - credit lending does not force asset purchase for income - generating activities? Credit has multiple use including consumption smoothing Fnsuring wet furchane will recive aditional...

What is MSb on your Excel printout?

Consider the sales relation from Section 22.2. Write an SQL query to compute the cube operation on the relation, giving the relation in as shown below. Do not use the with cube construct. item-name...

Suppose there are two classification rules, one that says that peoplewith salaries between $10,000 and $20,000 have a credit rating of good, and another that says that people with salaries between...

Suppose half of all the transactions in a clothes shop purchase jeans, and one third of all transactions in the shop purchase T-shirts. Suppose also that half of the transactions that purchase jeans...

You inherited your uncle's bakery in a remote area. The bakery has to stay in the family, but you prefer to keep your job and hired a local manager. The profits of the bakery depend on the economy...

Question 1: The primary function of the real estate brokerage industry is A. match properties and customers. B. guide buyers and sellers through the complexities of real estate transactions. C....

A 3 0 - year Treasury bond has than a 2 0 - year corporate bond. A 1 0 - year corporate bond has than a 5 - year corporate bond. more interest rate risk; less inflation risk less default risk; more...