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Key to represent relationship amongs tables is called ?
A Key that represent the relationship between tables is called Foreign Key.
What is Foreign Key Foreign Key: Sometimes we may have to work with an attribute that does not have a primary key of its own. To recognize its rows, we have to use the primar
Differentiate between logical database design and physical database design. Show how this separation leads to data independence? Basis Logical Databas
i need help with creating database system for a library
Define data conversion? Helpful to load data into temporary staging tables. Then can write SQL code to do much of data processing. SQL code is simpler and faster to write than
What is the use of group by clause? Group by clause is used to be relevant aggregate functions to a set of tuples. The attributes given in the group by clause are used to shape
Attributes and its types explain?
#question benefits and limitations of data models..
Durability : This property necessitates that once a transaction has committed, the changes made by it be never lost because of subsequent failure. Thus, a transaction is also a bas
A Relation Schema represented by R(A1, A2, ..., An) is made up of the relation name the list of attributes and R Ai that it contains. A relation is described as a set of tuples
What is the full form of DDL? DDL is stand for Data Definition Language.
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