Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Three Level Architecture of DBMS or Logical DBMS Architecture
The logical architecture defines how data in the database is perceived by users. It is not deals with how the data is handled and processed by the DBMS, but only with how it looks. The process of data storage on the underlying file system is not revealed, and the users can influence the data without worrying about where it is located or how it is really stored. This results in the database having dissimilar levels of abstraction.
The majority of commercial Database Management Systems available today are based on the SPARC / ANSI generalised DBMS architecture, as proposed by the SPARC / ANSI Study Group on Data Base Management Systems. Therefore, this is also called as the SPARC / ANSI model. It separates the system into three levels of abstraction: the physical or internal level, the conceptual level, and the view or external level.
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
Create an index for the table Client, field CLIENT_NO of Q ? Command: CREATE INDEX client_client_no ON client(client_no);
1. Will you advise that your organization uses open source software and why? 2. Why is it important for business managers to have a basic understanding of the software development
a) Suppose we updated the catalog tables in real time, that is, after every update, insert, or delete SQL statement were executed-rather than only running RUNSTATS once every few
What are two special events? The two special events are as "entry" and "exit". Any action which is marked as linked to entry event is executed whenever given state is entered v
1 NF Normal Form The domain of attribute must add only atomic (simple, indivisible) values First normal form (Minimal Form or 1NF) is a normal form need in database normalizat
Why older data models are being replaced by new data modelling 100 words accepted#
Explain Dynamic Two-Phase Locking Here a transaction locks a data item instantly earlier than any operation is applied on the data item. After finishing all the operations on
What are the parts of SQL language? The SQL language has various parts: data - definitition language Data manipulation language View definition Transaction contr
i need to implememnt a treee based mining algorithm. do you have an expert that can do that?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd