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What is NULL? Simply NULL means not in value.
what is the need of a log in dbms
Mention the type of constraints we can specify in the CREATE command of DDL. The type of constraints that can be specified are as follows:- PRIMARY KEY, NOT NULL, UNIQUE, FOR
How persistent programming languages differ from traditional programming languages? Database languages vary from traditional programming languages in that they directly manipul
Examine about the Behavioural Diagrams The main objective of behavioural diagrams is to visualize, specify, construct and document dynamic aspects of a system. The interactio
What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
What are the ways in which signal can be generated A signal might be generated in many ways such as a Signal is result of particular physical condition. Whenever a process writ
Prepare a data flow diagram for computing the volume and surface area of a cylinder. Inputs are the height and radius of the cylinder. Outputs are the volume and surface area of th
Hi is anyone well versed in accounting information systems available now to help me work through an important assignment due tomorrow at noon?
The cross-section of twisted pair The cross-section of each and every strand of the twisted pair is π/4 square mm. A 10-km length of this type of material, with two strands per
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