What is data modelling
What is meant by the data modelling?
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Data modelling represents the real world set of the data structures or entities and their relationship in their data models, needed for database.
There exist various types of modelling:
a) Logical data modelling. b) Conceptual data modelling. c) Physical data modelling. d) Relation data modelling. e) Enterprise data modelling. f) Dimensional data modelling.
State the difference between OLTP and OLAP?
Explain the term operational data stage (ODS) and data warehouse?
Illustrates the term update statistics in Sybase?
Specify the 2 modes of data movement in the Informatica Server?
In JDBC driver which coding pattern is use? Describe briefly?
In Sybase does table Partitioning needs user-defined segments?
Which of the following method does not support sorting (Exchange, Selection, Insertion, Deletion)?
Explain about the Buffer Manager in relational database management system.
Specify the System variables?
Describe the inconsistent values problem? Comprise an appropriate example?
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