What are the different types of schemas?
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Answer Posted / chowdary
There are two types of shemas
1 star schema , 2 snowflake schema
star schema : a fact table related to tha dimension tables
like in the fact table it contain refernce keys of
dimension tables. and dimension tables dont related to the
other parent table . it view like a star so its call star
schema. if this use to avoid more joins
snowflake schema: a dimenion table with related to the it
hirerchi tables. like time dimensin table year dimension
table, month month dimension table, week dimension table
it view like snowflake
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