Interested to Buy Any Domain ? << Click Here >> for more details...
explain different types of modeling.
- 2 Answers
- 11218 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / kshatri
There are again types of modeling:
Data modeling,
Dimension Modeling,
Multidimensional Modeling
Physical Model
Locial Model
Data Modeling: Data modeling is the process of designing a
data base model. In this data model data will be stored in
two types of table fact table, dimension table fact table
contains the transaction data, and dimension table contains
the master data
Dimensional Modeling: It is a logical design technique that
seeks to present the data in a standard, intuitive
framework that allows for high-performance access. There
are different data modelings concepts like ER Modeling
(Entity Relationship modeling), DM (Dimensional modeling),
Hierarchal Modelling, Network modelling.But popular are ER
and DM only
During the logical design phase, you defined a model for
your data warehouse consisting of entities, attributes, and
relationships. The entities are linked together using
relationships.
During the physical design process, you translate the
expected schemas into actual database structures. At this
time, you have to map:
• Entities to tables
• Relationships to foreign key constraints
• Attributes to columns
• Primary unique identifiers to primary key
constraints
• Unique identifiers to unique key constraints
| Is This Answer Correct ? | 10 Yes | 2 No |
Answer / pushparao
modeling is defined as to convert requirements of the business
users into technical structures.
1.conceptual modeling
2.logical modeling
3.physical modeling
example modeling tools:ERwin
| Is This Answer Correct ? | 5 Yes | 2 No |
how to get max value record into one target and remaining records into another target?
If in a workflow i have n number of sessions and each session is configured with different different stop on errors (say 5,8,10 etc respectively).How can make all this same for all the sessions with out actualy touching each and evry session ?
how many session run unix environment what command using ?
What is joiner change?
what is scd?
can we import source table without using source qualifier? if yes then how? if no then why?
How can we update a record in the target table without using update strategy?
What is dimensional table? Explain the different dimensions.
why we r using presql&postsql in source qualifier?
in u flatfile some of fact records are missed then u load the diminision records are not if u load diminsion records what about fact table records
Explain the types of transformations?
Which tool yoU use to create and manage sessions and batches and to monitor and stop the informaticaserver?
Teradata 
