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explain exhaustively the problems associated with ER diagrams. include illustrations in your answer
brief history,definition,current trends and future trends if any of data fragmentation
explain in detail about crash recovery
notes about update opreation
how to make an e r diagram?
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
What is conceptual model ? A conceptual model is a independent of both hardware and software.
Describe Interfaces for the DBA? Interfaces for the DBA - Most database systems holds privileged commands which could be used only through the DBA's staff. These involves com
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 many-to-many relationship?
Explain data dictonary on oracle ? Data Dictionary - Data dictionaries are the system tables in which contain descriptions of the database objects and how they are structured.
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