Answer / naveen kumar reddy

LOADING FACTS

The most important thing about loading fact tables is that
first you need to load dimension tables and then according
to the specification the fact tables.

The fact table is often located in the center of a star
schema, surrounded by dimension tables. It has two types of
columns: those containing facts and other containing foreign
keys to dimension tables.

* A typical fact table consists of: Measurements:
additive-measures that can be added across all dimensions ,
non-additive cannot be added and semi-additive can be added
across few dimensions.
* Metrics
* Facts - The fact table has frequently more than one
measurement field and then each field is called a fact.
Usually one fact table has at least three dimension tables.



Note:
Found this answer at http://www.etltools.org/loading/facts.html

Answer / venkat

If all dimention tables are succeded then only you can load
data in to the facts.if any one of the dimention is not
filled you cannot load data into the fact tables.Fact table
size can be calculated based on the lowest level
granularity of dimention tables.

How can we create index after completion of load process?

0 Answers  

---

Session Recovery. 1000 rows in the source of which 500 passed through and then I killed the session. Can you perform a recovery and how

1 Answers   IBM,

---

i have source flat file like 1 a,1 b,1 c,2 a,2 b,2 c i want output as 1 a,b,c and 2 a,b,c ... how can achieve this

5 Answers   TCS,

---

I have a source as flat file and having data like ""TCS"MUMBAI" and i want output like TCS MUMBAI,the length of the data in the rows is variable.how can you fix it?

5 Answers   TCS,

---

If i have one source having 10 ports.In a mapping i use that source one target having that ten ports.Data from 5 ports are going to target through a mapplet and another 5 ports are going to target through another mapplet.Both 2 mapplets are intially passive in nature.But presently my requirment to convert on mapplet to ACtive.How can i do it.

3 Answers   TCS,

---

What is the grain level in DWH? If i have year to day. what is the grain level of DWH from year to day.

1 Answers   Zensar,

---

I have been working in Informix-4gl for the past 2 years in an MNC company.But I'm interested to work in Business Intelligence tools. Is it possible to change the technology now? I'm really confused, please help me

1 Answers  

---

have u done any performance tuning? how u ll do?

0 Answers   IMB, TCS,

---

in what type of scenario bulk loading and normal loading we use?

2 Answers   Cognizant, Wipro,

---

there is a mapping with expression and mapping we create some condition for insert and update and followed by update startegy ,can we update and insert on a single target based on condition?

1 Answers   Emphasis,

---

What is the need of building a data warehouse?

2 Answers  

---

Source Qualifier is an active t/r but there is no change of row count then y should we called it active t/r & Router , sorter some times no change in row count then Y we called its active t/r?

2 Answers  

---