FREE Trial
Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Suppose we have the following two tables (pk is in bold): EMP ( E# , Ename, Address, D#) SAL_HISTORY ( E#, Raise# , Salary, Raise_Date,

Suppose we have the following two tables (pk is in bold):

EMP (E#, Ename, Address, D#)

SAL_HISTORY (E#, Raise#, Salary, Raise_Date, Reason)

Assume that 90% of queries involving salary is based on the most recent salary. How could you denormalize the above tables to improve the performance.

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access with AI-Powered Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Students also viewed these Databases questions

Question

14.52 Are You a Good Driver? How would you rate yourself as a driver? According to a survey, most Albertans think they are good drivers but have little respect for others' driving ability. The data...

Answered: 1 week ago

Question

★★★★★
1. Wegmans has always been managed by members of the Wegman family. Do you think the company could continue its winning ways if the next generation doesnt want to take over, forcing the company to...

Answered: 1 week ago

Question

★★★★★
Suppose we have the following two tables (pk is in bold): EMP ( E# , Ename, Address, D#) SAL_HISTORY ( E#, Raise# , Salary, Raise_Date, Reason) Assume that 90% of queries involving salary is based on...

Answered: 1 week ago

Question

★★★★★
help please!! Required information [The following information applies to the questions displayed below] The following adjusted trial balance at December 31 of Wilson Trucking Company. Prepare the...

Answered: 1 week ago

Question

★★★★★
In the figure below, a stainless steel wire is supporting a weight, W. The Yield Strength and Young's Modulus for stainless steel (Grade 304) is 205 MPa and 190 GPa, respectively. What is the maximum...

Answered: 1 week ago

Question

★★★★★
Keelan visited a local accounting office and gave a demonstration to the accountants of a software product he was selling that streamlined the tax filing process. The accountants were excited at the...

Answered: 1 week ago

Question

★★★★★
P15-6- EOQ, reorder point, and safety stock Outdoor Living Manufacturers uses 1,000 units of a product per year. The fixed cost is $28 per order, while the carrying cost is $5 perunit per year. The...

Answered: 1 week ago

Question

★★★★★
In order to show more reported gains or less reported losses on the income statement, "gains trading" can be accomplished by selling securities classified as ____ with gains or by transferring...

Answered: 1 week ago

Question

★★★★★
A worker in charge of assembling a bicycle finds a faster way to mount the pedals. He turns to his supervisor. The supervisor explains that the process had been optimized by the engineering...

Answered: 1 week ago

Previous Question Next Question