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Package classes and associations into models
Programs are made of separate physical units which could be edited, imported, complied or otherwise manipulated. The careful partitioning of an implementation into package is significant for group work on the program. Packaging has the following issues:
a. Information hiding
b. Collection of entities
c. Constructing physical modules with strong coupling with each other module.
What does authentication refer? Authentication refers to the task of verifying the uniqueness of a person.
What is Relational Algebra? Relational algebra is a Procedural query Language?
OPENCART - Want Massive amount of products Imported through CSV We have a massive list of products that would take completely too long to do data entry. We require a slick progr
A software contract and consultancy firm maintains details of all the various projects in which its employees are currently involved. These details comprise: Employee Numbe
Reflects organisational structure: Many organizations are distributed over various locations. If an organisation has many offices in dissimilar cities, databases used in such an ap
1. Which relational algebra operations do not need the participating tables to be union-compatible? Ans: Join is the relational algebra operations that do not need the particip
What is persistency? Persistency ensures which data is stored and that after the object is no longer available (program stops running) the data will be available to other users
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
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