Skip to main content
Announcements
Qlik Connect 2024! Seize endless possibilities! LEARN MORE
cancel
Showing results for 
Search instead for 
Did you mean: 
Anonymous
Not applicable

tell which schema it is ?

Hi , pls give name for each picture under which schema it follows

8 Replies
Peter_Cammaert
Partner - Champion III
Partner - Champion III

1. Snowflake

2. Star (messed up)

3. Star

That is, if each time the central table is your single Facts table.

Best,

Peter

Anonymous
Not applicable
Author

star (messedup) means what

Anonymous
Not applicable
Author

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.

datanibbler
Champion
Champion

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

Not applicable
Author

Hi,

All there are Star Schema as Expertsaid second one is Star Schema with data Island

engishfaque
Specialist III
Specialist III

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.

Schema.png

Kind regards,

Ishfaque Ahmed

Not applicable
Author

Hi all are Star Schemas ............

Anonymous
Not applicable
Author

Hi all,

i feel guilty because every one is working on qlikview , but there are many queries buy identifying the schema name it self.