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Creation of Indexes Automatically: When a primary key or Unique constraint is show in a table definition then a unique index is formed automatically. Manually: User can
a publishing company produce scientific books on various subjects. the books are written by authors who specialize in one particular subject. the company employs editors who, not n
Types of Data fragmentation
Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
How external/conceptual mapping and conceptual /internal mapping is performed
Describe about Use Case and external case in DFD The processes are transformed those into the Use Case and external case in DFD has same characteristics which of an actor in O
What are the benefits of document scanning? Document scanning, in addition to being cost-efficient, also enhances productivity. This service enhances security as you set the pa
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
A set of possible data values is called? A set of possible data values is called as domain.
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