SQL Transactions Exercises Consider table Item(name,price) where name is a key, and the following two concurrent transactions. T1: Begin Transaction; Update Item Set price = 2*price Where name = 'pencil'; Insert Into Ite ...
|
(a) Taking an unnormalised list, describe how you would normalise it using the normal forms technique and show how the result of this method is used. (b) You are currently in the process of developing a RDBMS for a natio ...
|
SQL Assignment In these exercises, you'll enter and run your own SELECT statements. You will use the MyGuitarShop database for these queries. If you do not already have the MyGuitarShop database, the SQL script and the i ...
|
Suppose that we have a table of house prices and a table of zip codes: • hprices(hid (PK),address,bedrooms,price,zipcode) • zipcodes(zipcode (PK),state) Write a SQL query that finds the average, maximum, and minimum pric ...
|
Relational Database Design A) Given the following business rules, identify entity types, attributes (at least two attributes for each entity, including the primary key) and relationships, and then draw an Entity-Relation ...
|
A School's office of the registrar maintains data about the following entities: a) courses (including course number, title, credits, syllabus and prerequisites), b) course offerings (including course number, year, semest ...
|
OBJECTIVE: The objective of this lab is to be familiar with a process in big data modeling. You're required to produce three big data models using the MS PowerPoint software. This tool is available on UMUC Virtual Deskto ...
|
The case study company received a detailed report from the ECM consultant with a detailed list of data requirements, tools, and processes that are currently used to manage this data. The chief executive officer (CEO) and ...
|
SQL Query Assignment - For this assignment you are to write your answers in a word document. This assignment is in three parts: Part A (reporting queries), Part B (query performance), Part C (query design). For this assi ...
|
Query 1: The bookstore has decided to keep track of the vendors' information. In order to do this, one new table will be added to the database. The schema for this table, as related to the existing tables, is the followi ...
|
|