Stage Variables and Constants
Describe the term Derivations, Stage Variables and Constants?
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a) Derivation - Expression which specifies value that can be passed on to the target column.
b) Stage Variable – It is defined as an intermediate processing variable which retains the value during read and does not pass the value to the target column.
c) Constant - Conditions that are either true or false which specifies that flow of the data along with a link.
Homework E-R Modeling Follow a MOVIE database where data is recorded about the movie industry. The data needs are summarized as follows: _ Each and every movie is identified by title & year
Database Requirements Consider a MOVIE database in which data is recorded about the movie industry. The data requirements are summarized as follows: • Each movie is identified by title and year of release. Each movie has a length in minutes. Each has a production company, and each is classifie
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