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Hi , pls give name for each picture under which schema it follows
1. Snowflake
2. Star (messed up)
3. Star
That is, if each time the central table is your single Facts table.
Best,
Peter
star (messedup) means what
PNG1 Star Schema
PNG3 Star Schema with data Island
PMG2 Star Schema with two fact tables .. Fact to Fact joins are not recommended to you can create two star schema for that.
Hi,
I guess, judging by the pictture, Peter means that you have a "data_island" (that is, a table - the calendar - which is not linked to any other. That makes the performance of the app worse - plus you cannot use fields from that table, e.g. as dimensions. It works - sometimes data_islands just cannot be helped, I have some in my apps, too - but if possible it should be avoided.
HTH
Best regards,
DataNibbler
Hi,
All there are Star Schema as balkumarchandel said second one is Star Schema with data Island
Dear CommonQlik,
Snowflake schema and star schema,
dm2.png => Snowflake Schema
Attachment dim3.png => Star Schema
Attachment data model1.png => Star Schema
Listed below image will help you to understand the schemas.
Kind regards,
Ishfaque Ahmed
Hi all are Star Schemas ............
Hi all,
i feel guilty because every one is working on qlikview , but there are many queries buy identifying the schema name it self.