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To delete a particular column in a relation which command is used ?
To delete a particular column in a relation ALTER command is used.
Normal 0 false false false EN-IN X-NONE X-NONE
what is the need of a log in dbms
give some example real-life situations where DBMS are most suiitabe
Though all the ABAP/4 Dictionary Structures that exists in the structure of the LDB, being described in Database Program, we are explaining the Dictionary Structures in the Report.
Determine object representation As a designer, we must choose properly that when to use primitive types in representing objects and when to combine groups of related objects,
Define Single Value and Multivalued attribute Single value attribute comprise a single atomic value for an entity and multivalued attribute may have much more than one value f
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
Which is a legal expression in SQL? SELECT NAME FROM EMPLOYEE is a legal expression in SQL.
Discuss how the bi-directional Implementations are made. In bi-directional implementation of the association, a pair of references must implement every link. The declarations a
Explain the uses of deadlock It will lead to deadlock since this is the only place where incoming acknowledgements are processed. Without this code, sender will keep timing ou
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