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What are the three classes of SQL expression?
SQL expression consists of three clauses:
Select
From
Where
what do you mean by consistency in rdbms?
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
What is a data dictionary? Data Dictionary is a main source of data in a data management system. Its major function is to carry the creation and management of data definition
Question : (a) Explain with the help of appropriate examples the difference between ‘Data' and ‘Information'. (b) A digital image is an array of pixels, where each pixel h
Process of Adjustment of inheritance During object design, inheritance is readjusted by rearranging classes and operations, and abstracting common behaviour.
I need ERP system We are selling automotive spare parts on the internet and we require ERP software, which would sync with our e-shop. Our e-shop doesn't use any e-commerce plat
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
entity relationship diagram for online examination system
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
What is a checkpoint? List the operations to be performed by the system when a checkpoint is to be taken. What does the recovery system do if there is a crash? There is large n
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