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What is a database?
Database - Basically in simple terms A database is a collection of inter related data and/or information stored so which it is available to several users for different purposes.
Data Mining 1. What is data mining? Write Data Mining applications. 2. Explain OLAP? Write the benefits of OLAP. 3. What are the key features of a Data Warehouse? 4. W
What are the advantages of creating a table from existing table?
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
What is Primary key? Primary Key - Primary key is one of the candidate keys which uniquely identifies each row in the relation.
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
how to construct labelled precedence graph for view serialiability.please explain insteps with one solved examples
List the drawbacks of relational database system A) Repetition of data B) Inability to s certain information.
external view of DBMS in healthcare department?
(a) Provide the description of the following ODMG schema in the Object Definition Language (ODL). (b) Based on the above object database, write the following queries i
Having Clause with sub queries: First we have to recollect the GROUP BYclause. The following query searches the minimum salary in every department. SELECT DEPTNO, MIN (SAL)
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