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what is a view make a view of emp table named dept 20 to display the employees in department 20 and their annual salary ans view is a
evolutionary prototyping evolutionary prototyping also called as breadboard prototyping is quite dissimilar from throwaway prototyping the main goal
throw-away prototyping also known as close ended prototyping throwaway or rapid prototyping refers to the formation of a model that will eventually
what are the general transformation rules for relational operations ans the transformation rules transform one relational algebra expression to
the big red rocks brr mining company is based and operates in western australia they are primarily an iron ore miner but they also produce
define radix conversion method one clever way to transform binary numbers to bcd notation binary-coded decimal is the double dabble algorithm it
explain the relational completenesscodd described the term relational completeness to consider to a language that is complete with respect to
the important issues that a srs must address are a system goals and requirements are differentb request definitionc request specificationd
explain the query processing data query processing permits a user to report or analyze structured and unstructured data pulled from multiple data
define the third normal form the third normal form 3nf is a normal form employed in database normalization 3nf was initially defined by ef codd in
for this assessment students must research and analyse two different scenarios the two scenarios must be chosen from those described below and
what are the objectives of software designobjectives of software
explain why waterfall model is more advantageous than adhoc methods ad-hoc process models-process capability is unpredictable due
discuss the problem of spurious tuples and how we may prevent it ans a spurious tuple is mainly a record in a database that gets created
explain the waterfall modelwaterfall modelthe waterfall model is a sequential software development model in which progress is seen as flowing
what is the difference between serial and sequential files how searching is applied on both ans a serial file is one where the records have
define capability what are the quantities that determine the degree of capability of a software reliability modelcapability refers to the ability of
core dumpscore dumps are a debugging method a printout of all relevant memory locations is obtained and studied all dumps should be well documented
what are the dbms languages explain ans a data definition languages ddl it is employed to specify database schema for example create drop
user and system documentation with examplesuser documentation having descriptions of the functions of a system without reference to how these
describe the difference between a one-to-many and a many-to-many relationship which logical data structures comprise one-to-many and which comprise
equivalence class testingequivalence class testing is based on partitioning the input domain of a program into a number of equivalence classes so
scenarioa scenario is a sequence of events that happen in a particular implementation of the system a scenario can be defined textually by
define physical and logical independence ans physical data independence the ability to modify physical level without causing application program
encapsulation an object expresses the data and information it contains and supports a well described abstraction encapsulation leads to the