What language is the base of DMQL?
DMQL is based on Structured Query Language (SQL).
Which language is used for defining Schema Definition?
Data Mining Query Language (DMQL) is used for Schema Definition.
Out of star schema and snowflake schema, whose dimension table is normalized?
Snowflake schema uses the concept of normalization.
What is Normalization?
Normalization splits up the data into additional tables.
How many fact tables are there in a star schema?
There is only one fact table in a star Schema.
How many dimensions are selected in dice operation?
For dice operation two or more dimensions are selected for a given cube.
Dice is a sub-cube from the OLAP cube by selecting two or more dimensions
List the functions performed by OLAP.
OLAP performs functions such as roll-up, drill-down, slice, dice, and pivot.
Which one is faster, Multidimensional OLAP or Relational OLAP?
Multidimensional OLAP is faster than Relational OLAP.
List the types of OLAP server
There are four types of OLAP servers, namely Relational OLAP, Multidimensional OLAP, Hybrid OLAP, and Specialized SQL Servers.
What does the Query Manager responsible for?
Query Manager is responsible for directing the queries to the suitable tables.