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How can i turn a conceptual entity relationship diagram into a logical entity relationship diagram? what do i have to do with "mandetory or" and "optional or" relationships?
i need to submit in this topic.
Define Network DBMS The NDBMS is built primarily on a one-to-many relationship, but where a parent-child representation between the data items cannot be ensured. This may occur
Assignment #1 Data Management The questions on this exam are based on the Baxter Aviation case scenario. 1. (5 points) The systems analyst proposes the following two relationshi
What is an index? An index is a structure that helps to place desired records of a relation quickly, without probing all records.
Design a gennalization and specialization hierarchy for an automobile sales company
The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals an
What is the most significant feature that does not directly map into programming language structures? Why? Association, since there are complex types of association, like as qu
What is data block? Data Block - In oracle the data blocks are referred to as tablespaces. A tablespace is an fields of disk consisting of one or more disk files. A tablespace
Define instance and schema? Instance: Collection of data kept in the data base at a particular moment is known as an Instance of the database. Schema: The o
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