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What is the meaning of Data independence? Data independence means a programs that are not dependent on the physical attributes of data and a programs that are not dependent on
Example - ALTER TABLE emp MODIFY (empno NUMBER (7));
Explain the cartesian product in Database Management System
What is the error handling Traditionally, bits have been sent over line lacking any error correcting scheme in physical layer. The presence of the CPU in each modem makes it po
Explain about primary key Primary Key: It is one of the candidate keys that are taken to be the recognizing key for the entire table. E.g. although there are two candidate ke
Explain Network Model in DBMS? Network Model - It was formalised within the late year of 1960s through the Database Task Group of the Conference on Data System Language (DBTG
how to data store?
what are the main characteristics of database
What is nested relational model? The nested relational model is an extension of relational model in which domains might be either atomic or relation valued.
Which is another name for weak entity? Child is another name of weak entity.
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