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Explain the term High level DML?
High level DML A high-level or non-procedural DML permit the user to specify what data is needed without specifying how it is to be acquired. Several DBMSs permit high-level DML statements either to be entered interactively from a terminal or to be embedded in a general-purpose programming language.
What is D command work in the respect of QBE? D: It is the command inside QBE to delete tuple(s) from the relation.
Types of data independence Data independence can be classified into the following two types: Physical Data Independence: This means that for any change made in the physi
What are the storage types? The storage types are: a) Volatile storage b) Nonvolatile storage
What is the function of IO/M signal in the 8085? It is a status signal. It is used to differentiate among memory locations and I/O operations. When this signal is low (IO/M = 0
Question: (a) What are the challenges in the development of Large Scale Distributed Real Systems? (b) What is backward engineering and forward engineering in a design packa
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
The need for three level architecture The aim of the three level architecture is to divide each user's view of the database from the way the database is physically shown.
What are referential integrity constraints? A value that appears in single relation for a given set of attributes also appears for a particular set of attributes in another rel
Illustrate the collaboration and relationship diagram A collaboration is the society of interfaces, classes and other elements which work together to provide some cooperative b
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