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Differentiate between a Global and a Local temporary table?
- A local temporary table exists only for the duration of a connection or if defined inside a compound statement, for the duration of compound statement.
- Global temporary tables (created with a double "##") are visible to all sessions.
- Global temporary tables are dropped when the session which created it ends and all other sessions have stopped referencing it.
Explain the main advantages of DBMS over File Oriented System ?
A domain is a set of permissible values that can be given to an attribute. So each attribute in a table has a definite domain. Values to these attributes cannot be assigned outside
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During the deletion of a tuple two cases can happen: Deletion of tuple in relation having the foreign key: In this type of case simply delete the desired tuple. For example, in
By using the delete operation some consisting records can be deleted from a relation. To delete some definite records from the database a condition is also specified based on which
I want a professional with strong IT background who provide me timely assignments Project Description: I want a professional who can do my assignments for my major i.e. Infor
Question: A DBMS built for Online Transaction Processing (OLTP) is generally regarded as unsuitable for data warehousing. Each system is designed with a different set of requir
Describe Participation Constraints? Participation Constraints - The participation constraint exacts whether the existence of an entity depends on its being related to another
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What is multiplicity in the associations? Give an example to explain multiplicity? Multiplicity in association indicate number of objects participate in any relationship. For
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