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What is a primary index?
A primary index is an index whose search key also explains the sequential order of the file.
Before defines the second type of integrity constraint, viz., Entity Integrity, we should be well-known with the concept of NULL. Mostly, NULL is intended as a basis for dealing
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
Give an example of Operations from the functions of a bank. For creation of a saving account, you can write: bank::: create -savings-account (customer)->account. For oper
what is lossless & dependency preserving decomposition ?
In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
SELECT Statement This statement is used for retrieving information from the databases. It can be coupled with many clauses. Let us talk about these clauses in more detail:
Create an index for the table Client, field CLIENT_NO of Q ? Command: CREATE INDEX client_client_no ON client(client_no);
cardnality ratio for humanresource mangement system
What are stored and derived attributes? Stored attributes: The attributes keeps in a data base are known as stored attributes. Derived attributes: The attributes that are de
Determine the Objectives of object oriented design provide an overview of object oriented design; partitioning system to subsystems; describe how a software desig
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