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Equi Join: A join in which the joining condition is based on equality among values in the common columns. Common columns show (redundantly) in the result table. Let us Consider th
#what is cursor its uses ? Explain it
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
how to data store?
What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
difference between internal schema and external schema in DBMS
Define query language? A query is a statement requesting the retrieval of information. The portion of DML that includes information retrieval is known as a query language.
Natural Join : It is the similar like Equi join except one of the duplicate columns is removed in the result table. The natural join is the most usually used form of join operation
What is Information System?
Data Control The data control mostly refers to commands that permit system and data privileges to be passed to several users. These commands are usually available to database admi
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