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1. Define each of the following IN YOUR OWN WORDS:
(a) File:
(b) Record:
(c) Field:
(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.
Field
No.
Item
Description
Field Name
Length
Data
Type
# of
Decimal
Places
Comments
Lock Based Protocol A lock is nothing but a mechanism that tells the DBMS whether a particular data item is being used by any transaction for read/write purpose. As there are t
Consider a bank that has a collection of sites, each running a database system. Suppose the only way the databases interact is by electronic transfer of money between one another,
prototype of a distributed information system for a national car part retail outlet chain.
Demonstrate your knowledge of PL/SQL programming by writing and thoroughly testing triggers and stored procedures associated with an e-commerce application that provides security l
Consider the relations EMP(ENO,ENAME,AGE,BASIC_SALARY) WORK_IN(ENO,DNO) DEPT(DNO,DNAME,CITY) Express the following queries in SQL (i) Find names of employees who work in a dep
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3 assignments combined in 1
domain
Automated system for appointment with sms and call confirmation with service providers and user has to be initiate automatically. After selecting time and date to use service, s
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