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Lookup Tables in Star Schema.....

Hi All,

I am wondering how one would create a lookup table with a number as the primary Key....

Let me try to explain -

I have 3 tables,

      Names,     

     Location,

     Fact Table

they are all joined by ID

 

IDF_NameL_Name
10CharlieBrown
20LucySmith
30LinusRogers
40SallyBrown
50PeppermintPatty

 

IDCityState
12SeattleWA
21New YorkNY
31ChicagoIL
41Los AngelesCA
51Tuscan

AZ

 

IDF_NameL_NameCityState
100CharlieBrownChicagoIL
101LinusRogersSeattleWA
102SallyBrownNew YorkNY
103PeppermintPattyChicagoIL
104LucySmithLos AngelesCA

Now, Suppose I didnt want the abbreviation for State - I wanted it spelled out.  Normally, I would create a look up table and do an ApplyMap function to do that.  In this case, because the State field is going off of the ID field (Number)  I am not able to do that.

Surely someone has run into this problem - Any suggestions?  Files are attached to illustrate what I am talking about.

thanks

_L

3 Replies
nagarjuna_kotha
Partner - Specialist II
Partner - Specialist II

mean while can you share ur expected output

-Nagarjun

rupamjyotidas
Specialist
Specialist

What is teh issue here , applymap should work

All i Can see your data, ID is different, which will make it Hard to get the details for Each ID.Then you must use the String field to link all

nagarjuna_kotha
Partner - Specialist II
Partner - Specialist II

Here you can ccheck the data, I hope this is what your looking for .

FactState:

Mapping LOAD State,

    [ST Name]

FROM

(ooxml, embedded labels, table is Sheet1);

LocationState:

Mapping LOAD State,

    [ST Name]

FROM

(ooxml, embedded labels, table is Sheet2);

Names:

LOAD ID,

    F_Name,

    L_Name

FROM

(ooxml, embedded labels, table is Names);

Location:

LOAD ID,

    City,

    State,

    ApplyMap('LocationState',State) as StateName

FROM

(ooxml, embedded labels, table is Location);

FactTable:

LOAD ID,

    F_Name as FName,

    L_Name as LName,

    City as FTCity,

    State as FTState,

    ApplyMap('FactState',State) as FTStateName

FROM

(ooxml, embedded labels, table is FactTable);

For your ref i have sample statenames how to use those for applymap()

Check it out.

I hope this may helps you.

-Nagarjun