Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask DBMS Expert


Home >> DBMS

Q1. Let consider the given relation schema with the primary keys underlined:

Project(P_No, P_Name, P_Incharge)
Employee(E_No, E_Name)
Assigned_to(P_No, E_No)

prepare down the relational algebra expression for the given:

a) List out the details of employees who are working on all projects.

b) List out E_No of employees who are not working on the project number 2K.

c) List all the names of employees who are working in the similar project as employee named ‘Tom’.

d) List all the names of employees who are not working in any of the project.

Q2. Distinguish between the Conflict Serializability and View Serializability of the schedules.

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M911523

Have any Question? 


Related Questions in DBMS

Ngocbo database projectthe purpose of this project is to

NGO/CBO Database Project The purpose of this project is to build a database to store and retrieve basic information on NGOs/CBOs collected through a questionnaire given in the Appendix. Database Specifications In view of ...

Fundamentals of databases assignment 1 -q1 explain the

Fundamentals of Databases Assignment 1 - Q1. Explain the distinction between total and partial constraints. Q2. Explain the difference between a weak and a strong entity set. Q3. Explain the distinction between disjoint ...

Assignmentthis assignment requires you to design a video

Assignment This assignment requires you to design a video rental database system that will provide the functionality outlined below. Your grade will be based on how well your system can accommodate the requirements, your ...

Projectinstructionsfor the purpose of grading the project

Project Instructions: For the purpose of grading the project you are required to perform the following tasks: Instructions 1 Open the start file Day Spa that you recently downloaded then Save the workbook as Lastname_Fir ...

Hospital database determining keysdevelop a microsoft

Hospital Database: Determining Keys Develop a Microsoft Access database based upon the following business scenario. Be sure to include tables, fields, keys, relationships, and test data in your database. Your final submi ...

Assignmentas the new manager of a convenience store you

Assignment As the new manager of a convenience store, you have noticed issues with the manual method of tracking sales using paper sales tickets and spreadsheets, as well as, shortages on some of the more popular items c ...

Task - overview of business casealive amp boating aampb is

Task - Overview of business case: Alive & Boating (A&B) is a small start-up company that sells small boats in Wagga. A&B keeps its models in several showrooms across the city. At this stage customers cannot view the avai ...

Create a small bank account database with one account table

Create a small Bank Account database with one Account table. The Account table Should have fields for account number, customer last and first names, and current balance. The type of database will be Access .Populate the ...

Homeworkgiven the relations below answer the following

HOMEWORK Given the relations below, answer the following queries using SQL. Note that the tables contain sample records only and do not represent all the possible records that could be stored in these tables. MEMB ERS ME ...

Database design discusion 150 wordsnormalizationplease

Database Design Discusion (150 words) Normalization Please respond to BOTH of the following questions: Question A In your own words discuss the benefits of normalization. Question B Do you think we should normalize our d ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen