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What is a view?
A view is a logical view on one or more tables. A view on one or more tables i.e., the data from a view is not actually physically kept instead being derived from one or more tables.
What is a trigger
what is check point in database management system
Discuss deferred update technique of recovery. What are the advantages? Ans: The deferred update methods do not physically update the database on disk till after a transact
Define Boyce codd normal form A relation schema R is in BCNF with respect to a set F of functional dependencies if, for all functional dependencies in F + of the form.α ->β.
The following data are required to be stored by a family physician. Family#, FamilyAddress, Patient#, PatientName, ServiceCode, ServiceFee, ServiceDate A family can have seve
sir, could anybody help me in getting complete information about the mentioned topic
Draw entity relationship diagram for the following scenario. A university has many departments whereas each department belongs to that particular uni. That uni has also many bui
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
Explain What is Relation? A database relation is a predefined row or column format for storing information in a relational database. Relations are equal to tables.
Change the city of First Bank Corporation to ‘New Delhi' UPDATE COMPANY SET CITY = ‘New Delhi' WHERE COMPANY_NAME = ‘First Bank Corporation';
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