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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 are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
HOW TO SOLVE THE LP Problems by simplex method?z=x1+-3x2+2x3
coventions for displaying an ER schema as ER diagram
explain cascading rollback
define normalisation and functional dependency
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
Problem : AirwaysCentre, an international airline booking company currently uses a relational database system for their operations, which includes the following relations: P
A database is a set of data. But, is the data kept in a database trustworthy? To answer that query we must first answer the question. What is integrity? Integrity simply means t
Explain the Project-Join normal form A relation R is in PJNF along with respect to a set of functional dependencies D if for all join dependencies of the outline *(R 1 , R 2 ,
What is meant by log-based recovery? The most widely used structures for recording database changes is the log. The log is a sequence of log records, recording all the update a
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