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What is conceptual model ?
A conceptual model is a independent of both hardware and software.
Create 1 experiment to demonstrate an aspect of query optimisation by using access-path structures (indexes), decomposition, or denormalisation. Once satisfied with your experiment
#floating point representation is used to store
external and internal mapping with examples
Aggregation Aggregation is stronger form of association. It represents the "has-a" or "part-of" relationship. An aggregation association depicts a complex object which is comp
In an E-R diagram an entity set is represent by? In an E-R digram entity set is represted by rectangle.
What are the states of transaction? The states of transaction are:- a) Active b) Partially committed c) Failed d) Aborted e )Committed f) Terminated
Draw an ER diagram that represents the information described below. Show all entity sets, relationship sets, primary keys, and the mapping cardinality of the relationship sets.
Query Processor The query language processor is responsible for taking query language statements or shifting them from the English-like syntax of the query language to a form
sql is relationally complete-justify
System level permissions : With the use of data dictionary you can view them. Let us take the table name as user_sys_privs (used in oracle). DESCRIBE USER_SYS_PRI
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