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What are the properties in a relation ?
In a relation Ordering of rows is immaterial and No two rows are identical.
Insertion Anomaly: Inability to show certain information-The primary key of the over relation be (enrolment number, Cno). Any new tuple to be inserted in the relation should have
write a database program for concurrency transaction in a bank
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
The ABC Bank authority now wants to create a database for their customers. So you are requested to modify your program of Assignment A3 as follows. The main program first displa
Haw does it work one database application
1 - Serial RS232 comm port comunication 2 - NanoHTTPD serving a few processed pages 3 - System tray application to indicate status and access configuration forms 4 - SQLit
FDs in Entities : Student entity : Enrolment number → Student name, Address Course Entity :
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
Example: RELATIONAL SCHEMA for PERSON: PERSON (PERSON_ID: integer, NAME: string, AGE: integer, ADDRESS: String) RELATION INSTANCE In this instance, m = 3 and n = 4
growing phase and shrinking phase are disjoint, why ?
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