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Q1) Give examples of binary 1:N relationships, for (a) an optional-to-optional relationship, (b) an optional-to-mandatory relationship, (c) a mandatory-to-optional relationship, and (d) a mandatory-to-mandatory relationship. Illustrate your answer using IE Crow's Foot E-R diagrams.
Draw an ER diagram for your database scenario. Design a set of 3NF tables for your database scenario.
Several times, database triggers are utilized to record logins by users. Here is the example of login trigger that inserts row into table every time a user connects.
Write down the complete transaction using SQL.
Start with LAN on RTA and proceed clockwise. Determine the number that how many total valid host addresses will be wasted on WAN links?
These following questions require to you to create entities and their relationship using the Crow's Foot notation suitably.
MGMT321 Group Project : You were hired as an analyst to develop a new information system to automate the payroll transactions in a mid-size organization. The proposed system will contain employees’ data and interface with the organization’s General ..
Write an SQL query to get the author of the book "The Alchemist"
Describe the database and describe the four characteristics of the database? Explain the Relational Database and generate a relational database for five employees.
The relations given below keep track of airline flight information:Flights(flno: integer, from: string, to: string, distance:integer, departs: time, arrives: time, price: real)Aircraft(aid: integer, aflame: string, cruisingrange: integer)
To analyse a set of data, and write a memo, identifying and explaining your insights into the operation of Todd Restaurants.
However, the only way you can access values is through queries to the databases. In single query, you can specify value k to one of two databases.
Create tables in 3NF. As you create the database, include different codes for at least three of the fields. Use sample data to populate fields for at least three records in each table.
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