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This language that enable user manipulate to or access data as organized by appropriate data model. Low level or Procedural DML : DML needs a user to specify what data ar
Views A view is like a window by which data from tables can be changed or viewed. The table on which a view is based is known as Base table. The view is stored as a SELECT stat
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
Let us now talk about the relational operations: SELECT The select operation is used to select few specific record from the database based on different criteria, This is a un
What is the meaning of Data Independence ?
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
What are the several forms of identity? a) Value b) Name c) Built-in
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
a brief definition
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