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Explain the Weak Entity Set
An Entity set which does not have sufficient attribute to make a primay key is known as weak entity set. For instance, dependents of an employee in an organization do not comprise an identifying attribute.
Properties of a Transaction A transaction has four main properties. These are: Atomicity Consistency Isolation or Independence Durability or Permanen
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DDL Compiler The DDL compiler changes the data definition statements (such as CREATE TABLE .... in SQL) into a set of tables having metadata tables. These tables have infor
What is an object design? Object design is a very interactive method, which decides the relationship among objects, classifies operations on classes, determines overall system
discuss the array implementation of a stack.
While using extract datasets it is required to have a special workarea for interface False. It is not required to have a special workarea for interface
what is natural join?
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
Discuss along with examples about several types of attributes present in the ER model? Types of Attributes are: • SIMPLE attributes are attributes which are drawn from the ato
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