Working and processing files, Database Management System

Write Your Message!

Related Discussions:- Working and processing files

To eliminate duplicate rows-data manipulation language, To eliminate duplic...

Describe the advantage of state chart diagram, Describe the advantage of St...

Data cube, Data slice explanation

Unrepeatable reads-problems of concurrent transactions, Unrepeatable reads ...

Dbms, You are managing the following database system: • DBMS: Oracle 11g ...

aggregate functions-data manipulation language, Aggregate functions ...

State in brief about object design, Give the Introduction of OBJECT DESIGN ...

Mysql, he SQL query that will return the order number, quantity ordered, pr...

Develop and evaluate partial systems, Part 1: Security Plan Consider th...

Write a qbe query to display names of cs department, Consider a table stude...

User Account

All Pages

Assignment Help:

1. Define each of the following IN YOUR OWN WORDS:

(a) File:

(b) Record:

(d) Primary Key:

(e) Secondary Key:

2. A travel agency wants to track the prices of its various packages. Package pricing differs by season (high and low). The input record should include package code, package description, vendor number, low season cost, low season dates (beginning and ending), high season cost, high season dates (beginning and ending), package markup percentage. Design the input record.

To eliminate duplicate rows (distinct operator) Example: SELECT DISTINCT DEPTNO FROM EMP;

Describe the advantage of State chart Diagram A state chart represents a state machine, emphasizing flow of control from one state to other. A state machine is a behaviour whi

Data slice explanation

Unrepeatable reads : Assume T7 reads X twice during its implementation. If it did not update X itself it could be very disturbing to see a dissimilar value of X in its next read. B

You are managing the following database system: • DBMS: Oracle 11g • OS: Sun Solaris • System architecture: Web-based application using ASP.Net • Purpose of Server: HR managem

Aggregate functions Some of these functions are min, count, max, and avg. These functions help in getting consolidated information from a set of tuples. Example:

Give the Introduction of OBJECT DESIGN Strategies which are selected during system design are carried out in object-oriented design. In this procedure, objects which are identi

he SQL query that will return the order number, quantity ordered, price each and total cost of an order (quantity * price each) from the order details table. Label the calculated c

Part 1: Security Plan Consider the Case study and identify 3 security requirements. For each of these security requirements: • Discuss the necessity for the feature and how

Consider a table student (std_id, std_name, date_of_birth, percent_marks, dept_name). Write a QBE query to display names of Computer Science department students who have scored mo

Name

Email id

Message

Verfication Code

Field

No.

Item

Description

Field Name

Field

Length

Data

Type

# of

Decimal

Places

Comments