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Express the properties of Strings?
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
Selective replication: This is a combination of generating small fragments of relation and replicating them rather than a entire relation. The data should be fragmented on require
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
external view of DBMS in healthcare department?
example of bank
Change the city of First Bank Corporation to ‘New Delhi' UPDATE COMPANY SET CITY = ‘New Delhi' WHERE COMPANY_NAME = ‘First Bank Corporation';
What are stored and derived attributes? Stored attributes: The attributes keeps in a data base are known as stored attributes. Derived attributes: The attributes that are de
Database Administrator One of the main perpose for having the database management system is to have control of both data or programs accessing that data. The person having li
Log based recovery: Let us first describe the term transaction log in the context of DBMS. A transaction log is a record in DBMS that remains track of all the transactions of a dat
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