What are the different types of schemas?
Answer Posted / vignesh muralidharan
three types of schemas are availble.Star schema,star flake
schema & snow flake schema.
Star schema:It is highly denormalised,so we can retrieve
the data very fast.
Star flake schema:Only one dimension contain one level of
hierachy key.
Snow flake schema:It is highly normalised,so retrievel of
data is slow.
| Is This Answer Correct ? | 34 Yes | 43 No |
Post New Answer View All Answers
Explain pmcmd command usage in informatica
What is rank transformation in informatica
Tell me about MD5 functions in informatica
I have 100 records in source table, but I want to load 1, 5,10,15,20…..100 into target table. How can I do this? Explain in detailed mapping flow.
Why filter transformation is an active one?
complex mapping ur project u r invlve can u explain and give real time example give me ?
Explain about Informatica server process that how it works relates to mapping variables?
How many ways are there to do 'remove duplicate records in informatica'?
What is an aggregator transformation?
What the difference is between a database, a data warehouse and a data mart?
What is informatica metadata and where is it stored?
can any one explain me what i have to tell about insurance project in interview,,,,when he asked to tell about ur project
How to join three sources using joiner?
Hi, In source I have records like this No name address 10 manoj mum 10 manoj dilhi 20 kumar usa 20 kumar Tokyo I want records in target like shown below No name addr1 addr2 10 manoj mum dilhi 20 kumar usa Tokyo If it is reverse we can do this by using Normalizer transformation by setting occurance as 2. Somebody will say use denoralization technique. But as of my knowledge I couldn’t find any denormalization technique. Is there any concept like that? I tryid this seriously but I could find any idea to implement this. Can any one please help me ? Advance Thanks
what is diff b/t sorter t/r and agg have the option sorter property...