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While sorting, if the main storage available is not enough, the system writes data to an external help file. The SAP profile parameter, which determines
DIR_SORTTMP
find the name of supplier who supply some red part
A super key is an attribute or set of attributes used to recognize the records uniquely in a relation. For instance, in the Relation PERSON defines earlier PERSON_ID is a super
What is advantage of two-way association? Two-way association advantages are following: a) Independent of the classes. b) Useful for existing predefined classes that are
Database Management Systems 1. Explain SQL Server 2000 Architecture with diagram. 2. Describe Second Normal and Third Normal Form. 3. Explain about query engine and stora
Define Deadlock detection If a system does not employ a few protocols that make sure deadlock freedom, after that a detection and recovery scheme should be used. An algorithm
Describes the several relationship constraints through giving suitable example? Constraints on relationships: There are two kinds of constraints on relationships. 1) Mapping
Example - ALTER TABLE emp MODIFY (empno NUMBER (7));
Read the description below and draw an Entity-Relationship diagram for it. You must use the symbols described in the course materials. This database will help the Parents Assocc
define locking in simple language and decribed it
What is entity in DBMS? Entity: A DBMS entity is either a thing in the modelled world or a drawing element in an ERD.
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