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CBSE Notes 2011-2012 » XI-Accounts

Database Concepts for Accounting

Every relation has at least one super key by default, which is the combination of all its attributes...

Multiple choice question

Every relation has at least one super key by default, which is the combination of all its attributes.

Data transformation is called Information.

Multiple choice question

Data transformation is called Information.

Referential integrity constraint arises because of relationships between various entities

Multiple choice question

Referential integrity constraint arises because of relationships between various entities

The complete absence of WHERE clause in SELECT statement implies that no tuples of a relation shall ...

Multiple choice question

The complete absence of WHERE clause in SELECT statement implies that no tuples of a relation shall be selected.

ER model is an example of representational data model. [NCERT]

Multiple choice question

ER model is an example of representational data model. [NCERT]

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