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

Assignmentoverviewthis assignment gets you started thinking

Assignment Overview This assignment gets you started thinking like a database designer. You will learn concepts from chapters 1 through 5 and and implement them using MS Access. You should complete the following activiti ...

Systems and database design assignment database design amp

Systems and Database Design Assignment: Database Design & Implementation (Airline) The assignment consists of two tasks. The first task, Database Design, requires a word processed document in PDF format detailing the des ...

The following assignment is based on the database

The following assignment is based on the database environment designed in the Week Three Individual Assignment. Your database project must meet the following requirements: • Create a database using professional principle ...

Database worksheetuse the attached database to complete the

Database Worksheet Use the attached database to complete the following: Create a simple excel spreadsheet with data to update the database. >>> This can hold any type of data to be used in this database In MS Access 1. C ...

Upload your final project code and your presentation upload

Upload your final project code and your presentation. Upload all of your code in one large text file that has the .sql extension. Be sure to identify each section of code so that the reader will know what it does. All co ...

1 objective named entity recognitionin this project you

1. Objective: Named Entity Recognition In this project, you will use scikit-learn and python 3 to engineer an effective clas- sifier for an important Information Extraction task called Named Entity Recognition. 2. Gettin ...

Part 1identify and explain the default logins or user

Part 1 Identify and explain the default logins or user accounts for one of the database vendors discussed in the chapter. Part 2. Case Project 6-1: Database Password Policies, page 199 Create and document a written passw ...

Data mining is a powerful and tool but it poses challenges

Data mining is a powerful and tool, but it poses challenges to the protection of individual privacy. Data mining can combine information from many sources to create detailed profiles about each of us. Explore the Web sit ...

Itech 1006 - database management systems

ITECH 1006 - Database Management Systems Assignment Overview For this assignment you will implement and query a database from a supplied ER Diagram and Schema. You will be required to write the SQL statements to create t ...

A quick guide to pivot tables is found at the end of this

A "Quick Guide to Pivot Tables" is found at the end of this document. Review it BEFORE beginning the questions. The data for this exercise (structured as a flat file) can be found in an Excel workbook located on Blackboa ...

  • 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

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate