Creating Time Dimension from date columns in fact tables.

I remember watching a demo from a BI Tool a couple years ago, wich I swear was OBIEE, and the presentator stated it was possible to create a Time Dimension in the admin tool, based on a date column in other table.
Can you guys tell me if there's such functionality in OBIEE?
If so, how could I achieve that?!
Thanks in advance!
Marcos

hi,
You are trying to make Fact table as Dim table ???
Fact table has some dim columns??
We can do this by making a fact table as dim table ,create a dim hierarchy on that table
Year level :Extract(year from fact_date_column)
Month and year level:CAST (Extract(month from fact_date_column) As CHAR(5) ) || CAST (Extract(yearfrom fact_date_column) As CHAR(5) )
Like this
But,be careful while doing this make sure that all joins and content levels are good
As per my knowledge this is not a good way,Experts can add some words lets see!!!!!! :-)
thanks,
saichand.v

Similar Messages

Create time dimension table in repository without data warehouse

Hi,
I want to implement only BI repository solution in my customer (not datawarehousing). Is it possible to transform the data by repository tools, so that the times columns in fact tables are categorized by the "time dimension" table?
To be more explanatory:
The "Sales" table has the "time of sale" column. It contains the timestamp when the sale was performed. I have imported this table in "physical layer" of the repository. Now I want to create a new "time dimension" table, something like:
CREATE TABLE dimension_time (
Day_Key INT NOT NULL PRIMARY KEY,
Day_Timestamp DATETIME NOT NULL,
Day_Name NVARCHAR(32) NOT NULL,
Day_Text NVARCHAR(32) NOT NULL,
INSERT INTO dimension_time VALUES (20110101, {d '2011-01-01'}, '1/1', 'January 1', 'Saturday', 0, 6, 1, 1, 185, 1, 201052, 'W52', 'Week 52', 52, 201101, '01', 'January', 1, 7, 1004, 'Winter', 'Winter', 20111, 'Q1', '1st Quarter', 1, 20103, 'Q3', '3rd Quarter', 3, 20111, 'S1', '1st Semester', 1, 20102, 'S2', '2nd Semester', 2, 2011, '2011', '2011', 2010, '10/11', '2010/2011', 0);
INSERT INTO dimension_time VALUES (20110102, {d '2011-01-02'}, '2/1', 'January 2', 'Sunday', 0, 7, 2, 2, 186, 2, 201052, 'W52', 'Week 52', 52, 201101, '01', 'January', 1, 7, 1004, 'Winter', 'Winter', 20111, 'Q1', '1st Quarter', 1, 20103, 'Q3', '3rd Quarter', 3, 20111, 'S1', '1st Semester', 1, 20102, 'S2', '2nd Semester', 2, 2011, '2011', '2011', 2010, '10/11', '2010/2011', 0);
and after to add a new column in "sales" fact table for "time dimension ID" and through the repository populate this column based on the "time of sale" column and the corresponding "time dimension ID".
I know that the ETL process might perform it, but I do not want to go for Data Warehousing (it is not real - time, needs more resources, etc).
Is it possible to perform such action only on repository?
Thank you.

Hi,
I can do it, but this would be usefull only to create "time dimension" table. But also the "sales" fact table needs to be altered (thus, the "time" column will not contain the value of the time, but the ID of the corresponding time in the "time dimension" table).
I know that on DW this procedure is done automatically by the ETL process.
My question is that does the repository has any tools similar to this?
Thank you.

Updating master data for time dimensions from front end

Hi Experts,
I am sure this must be handled in a very straight forward way. Just want to know the best practice here. We are working on a copy of appset and want to completely revamp the time dimension papers as per client's fiscal year which is april to march every year.
When we have deleted all the existing memebers from the time dimension master data from BPC front end and replaced with new memebers, the task is getting completed successfully.
But when I check back in BI for the master data, it has not replaced all the existing members. How best to handle this?
The transaction data is deleted from all the application cubes. Are there any checks to be performed?
Thanks,
Santosh

Closing the thread as I could not replicate the problem. The problem is resolved.
Thanks,
Santosh

How to involve time in a date column in JDBC OCI 8.0.5.2.

Hi,
I need to involve time in a date column in JDBC OCI 8.0.5.2.
The default date format is like "09-Sep-1999". I could use it
but just need time involved too, like "09-Sep-1999 10:11:12".
I tried to use JDBC's Timestamp whose format is like
1999-9-9 12:00:00.000, just same as the dates selected from my
table,
but got an error message "literal doesn't match format string".
The JDBC document said Oracle's date could be JDBC date,
timestamp and char.
Thanks a lot!
-Ninon
null

: The only oracle driver that vcan run with JDK 1.2.x is in the
OTN
: download area and is named "816SDK for JDK 1.2"
: it will work with the JDK 1.2.X using the JDBC 1.22 spec from
JDK
: 1.1.X.
: IT DOES NOT PROVIDE THE FULL JDBC 2.0 FEATURES/ FUNCTIONALITY
: THAT ARE INCLUDED IN THE JDK 1.2.X CLASSES.
Does anyone know which versions of Oracle this driver will work
with? I'm trying to use JDK 1.2 and Oracle 8.04 with the above
mentioned driver, but it's misbehaving on prepared statements:
I'm getting a 'ORA-8001 not all variables bound' error even
though I'm correctly specifying binary data (using
PreparedStatement.setBytes(..)) for a LONG RAW column...
Please don't tell me I have to upgrade my Oracle installation in
order to use JDBC with JDK 1.2.x
Feedback is greatly appreciated!
thanks!
// Tor Kleiberg
null

Help required in creating a dimension from an excel sheet

Hello all ,
We have a new requirement ,where we need to create a Dimension from an excel sheet. I tried creating it from a . csv file. But , I am not sure how to set the across, down statement ( if any) . The procedure is able to peek the data from the excel sheet. But , it says that the dimension member is not a selected member of variables. We have not created any variable yet. The transcript of the procedure is below :
remove dimension MODULE
ACCESS EXTERNAL
USE 'C:\module.csv'
DESCRIPTION FREE ,
peek only 5
read
BEGIN
construct MODULE
level MODULE_CD
label MODULE_DESC
preface "custom 5 allocate 1000,30,1"
END
end
compile dimension MODULE
Please advise
Thanks and Regards
Vijay

Hi Vijay,
I believe you should be identifying the fields you have in your csv file, in your case MODULE_CD and MODULE_DESC:
DESCRIPTION FREE ,
MODULE_CD text 10
MODULE_DESC text 20
Can you try that to see if it makes a difference?
Regards!
Ricardo

How to Calculate Duration from Date Columns

Hello,
I would like to calculate duration from date columns. Using the following query
SELECT DISTINCT
EVENT_ID,
To_Char(RU.START_TIME, 'HH24:MI') START_TIME,
To_Char(RU.END_TIME, 'HH24:MI') END_TIME
FROM ROOM_USAGE RU
What I need is to subtract START_TIME from END_TIME and result should be in minutes.
Many Thanks,

But, i think you need to calculate the number of days if the days are not same -
satyaki>
satyaki>
satyaki>
satyaki>with ru
2 as
3 (
4 select '05-JAN-2007 15:10:20' start_time, '07-JAN-2007 19:20:20' end_time from dual
5 union all
6 select '08-JAN-2007 05:10:20' start_time, '07-JAN-2007 07:07:20' end_time from dual
7 )
8 select ru.start_time, ru.end_time, SUBSTR(numtodsinterval(to_date(RU.END_TIME,'DD-MON-YYYY HH24:MI:SS')-to_date(RU.START_TIME,'DD-MON-YYYY HH24:MI:SS'), 'DAY'), 12, 8) duration
9 from ru;
START_TIME END_TIME DURATION
05-JAN-2007 15:10:20 07-JAN-2007 19:20:20 04:09:59
08-JAN-2007 05:10:20 07-JAN-2007 07:07:20 22:03:00
satyaki>
Or, Am i missing anything?
Regards.
Satyaki De.
is it possible to to add the duration? making the total hours to 26:12 (twentysix hours and twelve minutes)

Update data automatically in fact table in Data Warehouse

Hi,
I'm working on the creation of a data warehouse that include different data source like SQL Server performance (more than one), Active Directory users, Server performance (more than one), Exchange server mailboxes. The problem is that performance data change
frequently (like CPU and Memory), so my question is how to update data in fact table every 5 seconds automatically with SSIS.
Thank you for any advice

I'm assuming you have already figured out how to capture the data e.g. Powershell, extended events, MDW etc. and just need to know what dimensions or fact tables do you need.
You need to decide how often you are going to capture this data and based on that you will have dimensions with appropriate grain. Don't try to cram everything in the same fact table if it not of the same granularity. Also, separate process usually
have separate fact tables.
In addition to the Date dimension, you will need a Time dimension with a grain of 1 second (or maybe 5 seconds if that is when you get your data) then run the SSIS every 5 seconds to capture and append that data in the fact table.
- Aalamjeet Rangi | (Blog)

How can we delete the data in e-fact table.

how can we delete the data in e-fact table.

hii,
You cannot delete the request individually but you can one of the following:
1. Do a selective deletion from the cube. RSA1 -> Cube -> Contents -> selective deletion.
2. Delete all the data in the cube and then reconstruct only the required request ids. This would work only if you have the PSA available for all the requests.
3. Reverse posting is another possibility.
hope it helps,
partha

Load data in a fact table

Hello,
I have implemented SCD2 dimension and mapping executing works fine.
Now I have question about loading data in a fact table.
How do I need to use OWB (maybe JOINER operator - Join condition - between dimensions and source table) in case of:
- update on source table
- delete on source table
I think the most simple is insert on source table. It is probably to_char(source_transaction_date,'dd.mm.yyyy') = to_char(sysdate,'dd.mm.yyyy'), if I load once a day..
What is the procedure for fact table mapping to handle updates and deletes on source table?
Regards

Some discussions in previous forums should help you
http://forums.sdn.sap.com/thread.jspa?threadID=2019448
http://forums.sdn.sap.com/thread.jspa?threadID=1908902
In the SAP tutorial, you can see a sample example of making fact tables.
http://help.sap.com/businessobject/product_guides/boexir32SP1/en/xi321_ds_tutorial_en.pdf
Arun

BEx analyzer 7.x: How to determine first data column in result table?

Hi,
we are upgrading to 2004s where the SAPBEXqueries Sheet is not used anymore. Instead there is BExRepositorySheet. Is there a way to determine first data column in result table?
Regards, Josko.

hi dinesh......
please use 'INTO TABLE' instead of ' INTO CORRESPONDING FIELDS OF TABLE '. and use ' FOR ALL ENTRIES '............based on relavence ....coz when I set break point over the select queries it took me long time to execute .......
becoz u didnt used the for all entries in select query ............ u r read statement
READ TABLE I_KNA1 INTO WA_KNA1 WITH KEY KUNNR = WA_KNVV-KUNNR. .....
it is reading wrong kunnr value .............even it took long time to execute ......
use sort where ever required...
use for all entries .......and check weather the table initial or not......
use sy-subrc check where ever reqired ..............

Is it possible to create foreign key from composite key in other table.

SQL> desc PRODUCT_CONFIG_OPTION;
Name Null? Type
CONFIG_ITEM_ID NOT NULL VARCHAR2(20) --composite primary key
CONFIG_OPTION_ID NOT NULL VARCHAR2(20) --composite primary key
CONFIG_OPTION_NAME VARCHAR2(100)
DESCRIPTION VARCHAR2(255)
SEQUENCE_NUM NUMBER(18)
LAST_UPDATED_STAMP TIMESTAMP(6)
LAST_UPDATED_TX_STAMP TIMESTAMP(6)
CREATED_STAMP TIMESTAMP(6)
CREATED_TX_STAMP TIMESTAMP(6)
SQL> DESC PRODUCT_CONFIG_ITEM;
Name Null? Type
CONFIG_ITEM_ID NOT NULL VARCHAR2(20)
CONFIG_ITEM_TYPE_ID VARCHAR2(20)
CONFIG_ITEM_NAME VARCHAR2(100)
DESCRIPTION VARCHAR2(255)
LONG_DESCRIPTION CLOB
IMAGE_URL VARCHAR2(255)
LAST_UPDATED_STAMP TIMESTAMP(6)
LAST_UPDATED_TX_STAMP TIMESTAMP(6)
CREATED_STAMP TIMESTAMP(6)
CREATED_TX_STAMP TIMESTAMP(6)
SQL> desc product;
Name Null? Type
PRODUCT_ID NOT NULL VARCHAR2(20)
PRODUCT_TYPE_ID VARCHAR2(20)
PRIMARY_PRODUCT_CATEGORY_ID VARCHAR2(20)
MANUFACTURER_PARTY_ID VARCHAR2(20)
FACILITY_ID VARCHAR2(20)
INTRODUCTION_DATE TIMESTAMP(6)
SUPPORT_DISCONTINUATION_DATE TIMESTAMP(6)
SALES_DISCONTINUATION_DATE TIMESTAMP(6)
SALES_DISC_WHEN_NOT_AVAIL CHAR(1)
INTERNAL_NAME VARCHAR2(255)
BRAND_NAME VARCHAR2(100)
COMMENTS VARCHAR2(255)
=========
CREATE TABLE PROD_CONFIG_PROD_CONFIG_OPTION (
PRODUCT_ID VARCHAR2(20),
CONFIG_ITEM_ID VARCHAR2(20),
CONFIG_OPTION_ID VARCHAR2(20),
PAGE_NUM_TO NUMBER(18),
ALTERNATE_PAGE_NUM_TO1 NUMBER(18),
ALTERNATE_PAGE_NUM_TO2 NUMBER(18),
ALTERNATE_PAGE_NUM_TO3 NUMBER(18),
LAST_UPDATED_STAMP TIMESTAMP(6),
LAST_UPDATED_TX_STAMP TIMESTAMP(6),
CREATED_STAMP TIMESTAMP(6),
CREATED_TX_STAMP TIMESTAMP(6),
CONSTRAINT PK_PROD_CAT_CONFIG_MOD PRIMARY KEY (PRODUCT_ID),
CONSTRAINT FK_PRODUCT_ID FOREIGN KEY (PRODUCT_ID) REFERENCES PRODUCT(PRODUCT_ID),
CONSTRAINT FK_CONFIG_ITEM_ID FOREIGN KEY (CONFIG_ITEM_ID) REFERENCES PRODUCT_CONFIG_ITEM(CONFIG_ITEM_ID),
CONSTRAINT FK_CONFIG_OPTION_ID FOREIGN KEY (CONFIG_OPTION_ID) REFERENCES PRODUCT_CONFIG_OPTION(CONFIG_OPTION_ID) )
TABLESPACE DATA_SMALL
i try to create this table if i omit 3rd foreign key constraint then table successfully created.but including trd foreign key constraint it return error "ORA-02270: no matching unique or primary key for this column-list"
i checked everything is it possible to create foreign key from composite key in other table.

And
CONSTRAINT FK_CONFIG_OPTION_ID FOREIGN KEY (CONFIG_ITEM_ID,CONFIG_OPTION_ID) REFERENCES PRODUCT_CONFIG_OPTION(CONFIG_ITEM_ID,CONFIG_OPTION_ID)
?

Creating Time dimension in BW data model. - like seen in logical data model

Hello all,
I have been struggling with this thing and I am looking for some help from anyone on this forum.
We are trying to create a logical data model of our bw system. We are going live next month with Student module for universities. We have multiple Infocubes and DSO and since there is so much crossing over in between them most of the reporting is done on infosets.
One of the thing we were thinking; is it possible to create something like a common time dimension table for every infoprovider. Basically when we are providing the reports to the end user can we give them a drop down menu which gives a time frame for reporting rather than selecting.
Example: Like can we create something which looks in the drop down like current month data, last months data, three months ago, four months ago, five months ago, one year ago, two years ago. Can we make like these data slices in our cube and deliver it to the end user?
We have in our cube a few date infoobjects, like receipt date, decision date, cancellation date and like wise.
Please let me know if any one has done any similar thing, it will be very helpful.
Thank you so much in advance.

if you add your common time dimension to your data model, first identify for each infoprovider the time against which 'current month' and other frames should be applied and map them to your dimension.
just a question... are you not using time dimension in cubes ? ideally this should be your time dimension llinking all.
when you use time dimension which uses 'current month' , 'current year' , you will have to address their historisation as well. (because current month now will not be so current after 2 months).
so in data load procedure every day these values need to change (meaning drop and reload).
and routines to populate these values based on reporting date.
Edited by: hemant vyas on May 6, 2009 1:56 PM

Create Time Dim from 2 dimensions

Hi all,
I have an essbase cube with 2 dimensions related to time.
Year (Contains Years) and Time (that contains Qtr, Months and days).
I'm working with OBIEE and would like to know if I can create 1 Time dimension that combines Year and Time so I can have:
2010
- QTR1
-- Jan
-- Feb
-- Mar
2011
- QTR1
-- Jan
-- Feb
-- Mar
I've been playing a little bit in the OBIEE BMM, but I get the error "Missing most detailed table for dimension tables [Time, Year]. Could not load navigation space for subject area xxx"
Any thoughts?
Thanks

Any one?

OWB 904 - problems creating time dimension

I'm using Oracle9iR2 DB and OWB 904. I have not much experience with OWB 904 yet and problems with creating the time dimension.
I tried to figure out the example which comes with OWB 904 and did everything as it is written in the readme.txt file:
1. loaded the time table functions owb_time_seq.sql and owb_time.sql in my runtime user schema
2. imported the owb_bp_time.mdl file into my design repository, which created the demo project 'OWB_BP'
The problems which I have with this demo are:
1.) I get warnings when I validate the mappings (TF_TIME_MAP):
VLD-1002: Mapping object T_TIME is not bound to a repository object.
VLD-1004: Column length of L_DAY_NAME is longer than the target column length.
VLD-1004: Column length of L_MONTH_NAME is longer than the target column length.
VLD-1004: Column length of L_QUARTER_NAME is longer than the target column length.
VLD-1004: Column length of L_YEAR_NAME is longer than the target column length.
VLD-3260: No Output Attribute name is specified. In this case, the attribute’s physical name will be used.
VLD-1123: Missing location information for Module WAREHOUSE.
VLD-1115: Commit frequency is defaulted to Bulk Size.
I know how to solve the errors VLD-1002, VLD-1004, VLD-1123 and VLD-1115 but I have no idea how I should solve VLD-3260 and VLD-1002, because reconcile outbound is not possible for the T_TIME dimension.
2.) When I try to import the table function
TIMEDATA (IN VARCHAR2, IN NUMBER) return TABLE
from the runtime user schema into my design repository I get the error message: Argument Data type is not supported.
3.) I cant deploy the mapping TF_TIME_MAP.
Is it possible to use the table function from the demo to create a time dimension and to import it into my own project? My aim is to create a bean compliant time dimension and I want to know what I have to bear in mind to accomplish that. The OWB904UsersGuide didn't give me enough information, therefore I'm asking if you can help me out.
Thanks in advance,
Dirk

Dirk,
The way you should approach the time dimension is following:
- Run the SQL scripts into your target schema (you already did).
- Import the MDL file (you already did).
- Copy and paste the times dimension into your own project to be able to use it.
- Copy and paste the mapping you want to use to your own project.
- If necessary, modify the times dimension according to your needs; change the mapping accordingly.
- Open the mapping, do a right mouse click on the time dimension and select 'Reconcile inbound'. Select matching strategy to match by bound name.
We do not currently support the table function as an object in the metadata repository. I.e. if it exists at runtime then you can call it (as the time dimension load mappings do).
With the objects in the target schema you should be able to deploy the mapping.
Thanks,
Mark.

Creating Time Dimension

Hi
I have a fact table which has a time data stored in two columns, month_id,year_id.
My fact table looks like this
Sales,Month_ID,Year_ID
How can I model a level based dimension for time for this sort of table ?

You can map the time dimension to a view on top of your fact table as long as the fact is sufficiently dense in time (e.g. there are no missing months). The view would add end date and time span info as appropriate. Alternatively you can define a view that generates dates. The following thread shows the latter approach
populating a date dimension
You can adapt the view in it to derive time info from your fact if you like, but the standalone view is probably easier.

Creating Time Dimension from date columns in fact tables.

Similar Messages

Maybe you are looking for