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Question: Differences between star and snowflake schemas?

Answer: Star schema - all dimensions will be linked directly with a fat table.
Snow schema - dimensions maybe interlinked or may have one-to-many relationship with other tables.

Submitted by Francis C. (xxchen74 @ hotmail . com )

Star schema - all dimensions will be linked directly with a fat table.
Snow schema - dimensions maybe interlinked or may have one-to-many relationship with other tables.

Submitted by Francis C. (xxchen74 @ hotmail . com ) Source: CoolInterview.com

star schema is less normalization,query complexity is less,transaction speed is high.
snow flake is very good in normalization,query complexity is very high and the transaction speed is medium. Source: CoolInterview.com

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