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why shadow copy technique is used?
One-to-many : An entity in A is related with any number of entities in B. An entity in B is related with at the most one entity in A. Example: Relationship between faculty and d
Define the categories of SQL Statements? 1) Statements that don't return a result set. This statement class includes INSERT, DELETE, and UPDATE. 2)Statements that return
What is Cross Product? Simply Cross product is Binary Operator
With the help of a suitable diagram gives module wise explanation of system architecture of DBMS.on..
Benefits of Sequential File Organisation It is quick and efficient when dealing with huge volumes of data that require being processed periodically (batch system). Dra
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
In the first unit of this block, you have been given with the details of the Database Management System, its structure, advantages etc. This unit is an attempt to give you informat
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.
Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
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