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Relational Model: The relational model uses a collection of tables to represent both data and the relationships among those data. Each table has multiple columns and each column h
One-to-one relationship: For every 1:1 relationship type R in the ER diagram including two entities E1 and E2 we take one of entities (say E1) preferably with total participatio
Define what Immediate database modification technique uses? Ans: Both undo and redo.
Determine the Derived attribute to avoid re-computation Each class box consists of an ordered list of attributes and operations, each represented as a next string. We can find
data models are being replaced over years. Reasons and why does that happen?
complete er diagram of textile industry management
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
which component of DBMS can be embedded in a program? The data manipulation language (DML) is a component which is embedded in a program.
Define Shared locks? Ans: Shared lock: Throughout concurrent execution of transactions, earlier than a transaction can access a data item, it has to obtain a lock on it. Now he
Describe the responsibilities of the DBA and the database designer ? The responsibilities of DBA and database designer are: 1. Planning for the database's future storage needs
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