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draw ER diagram of student entity and course entity where attribute of student entity are student roll, student name, student phone and student address and attribute of course enti
what is cascading? what is rollback cascading? please explain in detail
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
explain the steps for reduction of er model into relational model?
Differance between DDL and SDL? DDL and SDL - The data definition language (DDL) is used through DBA and database designers to describe internal schema, conceptual schema, and
Consider a research paper submission process. The process starts when an author submits a draft research paper (the paper may have up to 3 authors) to the chair of the organizing c
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
Define data conversion? Helpful to load data into temporary staging tables. Then can write SQL code to do much of data processing. SQL code is simpler and faster to write than
What are composite attributes? Composite attributes can be separated in to sub parts.
1. Item based services will be charged fixed prices, and time-based will be charged variably depending on time. Such as per hour. Item-based: Fixed, pedicure, waxing, threading, fa
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