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Different stages of DDLC ?
Differentiate between a subquery and a join If we need to acquire information from one or more tables after that either subquery or join can be used. If the columns which are t
distributed quey processing
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
Define Deadlock prevention These protocols make sure that the system will never enter a deadlock state. There are two methods to deadlock prevention. One approach makes sure t
What is it ?
Define the concept of Object Diagram An object diagram shows a set of the objects and their relationships with each other at a point of time. In a static view, object diagram
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
statical data
Describe the objective of Structural Diagrams The main objective of structural diagram is to visualize, construct, specify and document static aspects of a system. Their eleme
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