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What is OLAP?
OnLine Analytical Processing (OLAP) is a Business Intelligence (BI) reporting system. OLAP gives the user with the capability to sum, count, average and do other easy arithmetic operations on groups of data. An OLAP report has calculates and dimensions. Measures are the data values to be displayed. Dimensions are characteristics of the measures. OLAP reports are known as OLAP cubes, although such reports are not limited to three dimensions.
Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
how to construct labelled precedence graph for view serialiability.please explain insteps with one solved examples
A relation has: Relational Schema Relation instance Relational Schema: A relational schema shows the relation's name, its attributes and the domain of every a
Define Deadlock detection If a system does not employ a few protocols that make sure deadlock freedom, after that a detection and recovery scheme should be used. An algorithm
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Although how will the system recover The selection of REDO or UNDO for a transaction for the recovery is completed on the basis of the state of the transactions. This state is
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What is ODBC ? ODBC - Open DataBase Connectivity which is also denoted by ODBC enable the integration of SQL along with a common-purpose programming language. ODBC expose data
Describe Physical Data independence ? Physical Data Independence - It is capacity to modify the internal schema without having to change conceptual schema. Therefore, the exter
what is check point in database management system
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