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What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
What is transaction? Collections of operations that form a single logical unit of work are known as transactions.
Why is database redesign necessary? Database redesign is essential for two reasons. First, redesign is essential both to fix mistakes made during the initial database design. S
Explain Authorization and Integrity Manager ? Authorization and Integrity Manager: Tests for the satisfaction of integrity constraints and checks the authority of users to acce
(a) Why did SAP introduce the extended star schema?
folding method and mid square method using visual basic
Un-Normalized Form (UNF) If a table having non-atomic values at every row, it is said to be in UNF. An atomic value is something that cannot be further decomposed. A non-atomic
What is the difference between a key and a superkey? Key - A key a single attribute or a combination of two or more attributes of an entity set which is used to identify one
Define Forms Based Interfaces? Forms-Based Interfaces - A forms-based interface display a form to each user. Forms are commonly designed and programmed for naive users and inte
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