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What is conceptual schema?
The schemas at the view level are known as subschema that describe dissimilar views of the database.
Replication : It is definite as a copy of a relation. Every replica is stored at a dissimilar site. The alternative to replication is to store only single copy of a relation which
Due date for May 8
Can you help me with the following: Drop statements for all objects in the lab project. Create statements for all objects of the lab project Create indexes for foreign keys Cre
Explain Relational model and their use in DBMS? Relational Model - The relational model was first introduced through E.F. Codd of the IBM Research in the year of 1970. The mode
What are segments in oracle? Segments - Each table has single field of disk space, known as segment, set aside for it in the tablespace. Segments consist of contiguous sections
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 I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
What are the responsibility of File manager? File Manager : Manager allocation of space on disk storage and the data structures used to represent within stored on disk. It is a
Mention the purpose of SID and SOD lines SID (Serial input data line): It is an input line by which the microprocessor accepts serial data. SOD (Serial output data line)
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