TODATE time series function in OBIEE 11g

Hi,
I have a problem with time series function. I have month level in time dimension hierarchy.
I have used below expression to get month to date results in my reports.
column
expression----> TODATE(fact.measure, hierarchy.Month level);
when i am using this column in my reports it is showing null values. The below error i am getting in view log files
----------------> Converted to null because it's grain is below query's grain
Note: Here i have measures, year,qtr,month,day,shift,hour in single physical table in physical layer.
Is it a problem to have measures and time columns in a single physical table?
Please let me know if you have any solution.
Thanks,
Avinash

Yes, it shud be a prob. Try using seperate tables for fact n timedim

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Attached is the SQL:
SELECT SUM (T256675.ACTIVITY_GLOBAL2_AMT) AS c1,
SUM (T256675.ACTIVITY_GLOBAL3_AMT) AS c2
FROM X_FINANCIAL_HIERARCHY_DH T610485 /* Dim_X_GLACCT_ALTVIEW_D */,
X_FINANCIAL_HIERARCHY_DH T610414 /* Dim_X_MGMT_ENTITY_D */,
W_GL_ACCOUNT_D T256463 /* Dim_W_GL_ACCOUNT_D */,
W_GL_BALANCE_F T256675 /* Fact_W_GL_BALANCE_F */,
SAWITH3,
SAWITH6
WHERE ( T256463.ROW_WID = T256675.GL_ACCOUNT_WID
AND T256463.X_FIN_HIER1_WID = T610485.ROW_WID
AND T256463.X_FIN_HIER5_WID = T610414.ROW_WID
AND T256675.BALANCE_DT_WID = SAWITH3.c3
AND SAWITH6.c1 = SAWITH3.c1
AND T610414.ACCOUNT_HIER8_NAME = 'Worldwide'
AND T610414.HIERARCHY_SOURCE = 'EntityMgmt'
AND T610485.ACCOUNT_HIER7_NAME = 'Controllable Expenses'
AND T610485.HIERARCHY_SOURCE = 'AltViews'
AND SAWITH6.c3 = '2009 / 11'
AND SAWITH6.c2 >= SAWITH3.c2
The SAWITH3 and SAWITH6 dimensions using time series fuctions are causing a full table scan on W_GL_BALANCE_F and W_GL_ACCOUNT_D . Though we are interested in just getting 2009/11 data; the queries generated by time series function TODATE is taking us against entire W_DAY_D data and is causing several performance issues.
W_GL_BALANCE_F table has index on GL_ACCOUNT_WID and BALANCE_DT_WID.
How can we force to use index on these columns for better performance.
Please advise us on the right approach to improve performance.
SQL for SAWITH3
===========
WITH SAWITH0 AS
SELECT T31328.ROW_WID AS c3, T31328.PER_NAME_FSCL_QTR AS c4,
ROW_NUMBER () OVER (PARTITION BY T31328.PER_NAME_FSCL_QTR ORDER BY T31328.PER_NAME_FSCL_QTR DESC)
AS c5,
T31328.PER_NAME_FSCL_MNTH AS c6,
ROW_NUMBER () OVER (PARTITION BY T31328.PER_NAME_FSCL_QTR, T31328.PER_NAME_FSCL_MNTH ORDER BY T31328.PER_NAME_FSCL_QTR DESC,
T31328.PER_NAME_FSCL_MNTH DESC) AS c7
FROM W_DAY_D T31328 /* Dim_W_DAY_D_Common */),
SAWITH1 AS
SELECT CASE
WHEN CASE SAWITH0.c5
WHEN 1
THEN SAWITH0.c3
ELSE NULL
END IS NOT NULL
THEN RANK () OVER (ORDER BY CASE SAWITH0.c5
WHEN 1
THEN SAWITH0.c3
ELSE NULL
END ASC NULLS LAST)
END AS c1,
CASE
WHEN CASE SAWITH0.c7
WHEN 1
THEN SAWITH0.c3
ELSE NULL
END IS NOT NULL
THEN RANK () OVER (PARTITION BY SAWITH0.c4 ORDER BY CASE SAWITH0.c7
WHEN 1
THEN SAWITH0.c3
ELSE NULL
END ASC NULLS LAST)
END AS c2,
SAWITH0.c3 AS c3, SAWITH0.c4 AS c4, SAWITH0.c6 AS c5
FROM SAWITH0),
SAWITH2 AS
SELECT MIN (SAWITH1.c1) OVER (PARTITION BY SAWITH1.c4) AS c1,
MIN (SAWITH1.c2) OVER (PARTITION BY SAWITH1.c4, SAWITH1.c5)
AS c2,
SAWITH1.c3 AS c3
FROM SAWITH1),
SAWITH3 AS
SELECT DISTINCT SAWITH2.c1 + 5 AS c1, SAWITH2.c2 AS c2,
SAWITH2.c3 AS c3
FROM SAWITH2),
SQL for SAWITH6
===========
SAWITH4 AS
SELECT T31328.PER_NAME_FSCL_MNTH AS c3, T31328.ROW_WID AS c4,
T31328.PER_NAME_FSCL_QTR AS c5,
ROW_NUMBER () OVER (PARTITION BY T31328.PER_NAME_FSCL_QTR ORDER BY T31328.PER_NAME_FSCL_QTR DESC)
AS c6,
ROW_NUMBER () OVER (PARTITION BY T31328.PER_NAME_FSCL_QTR, T31328.PER_NAME_FSCL_MNTH ORDER BY T31328.PER_NAME_FSCL_QTR DESC,
T31328.PER_NAME_FSCL_MNTH DESC) AS c7
FROM W_DAY_D T31328 /* Dim_W_DAY_D_Common */),
SAWITH5 AS
SELECT CASE
WHEN CASE SAWITH4.c6
WHEN 1
THEN SAWITH4.c4
ELSE NULL
END IS NOT NULL
THEN RANK () OVER (ORDER BY CASE SAWITH4.c6
WHEN 1
THEN SAWITH4.c4
ELSE NULL
END ASC NULLS LAST)
END AS c1,
CASE
WHEN CASE SAWITH4.c7
WHEN 1
THEN SAWITH4.c4
ELSE NULL
END IS NOT NULL
THEN RANK () OVER (PARTITION BY SAWITH4.c5 ORDER BY CASE SAWITH4.c7
WHEN 1
THEN SAWITH4.c4
ELSE NULL
END ASC NULLS LAST)
END AS c2,
SAWITH4.c3 AS c3, SAWITH4.c5 AS c4
FROM SAWITH4),
Thanks
Srini Pendem

Hi Srini,
I've had quite a bit of performance issues with ToDate and Ago. I tended to create materialized views on my fact tables that would materialize those values as columns and that way I would avoid having to use the ToDate or Ago functions. Is there any chance you can implement a similar solution and bypass the time series functions entirely?
Just to check, those tables belong to BI Apps, right? If so, you can log an SR about the performance issue since it's an issue with the model that Oracle sold you.
Good luck!
-Joe

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Hi
I am new to OBIEE.
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how should i insert it in the function
Syntax
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Once you have day dimension with checked for 'Time dimension'
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http://gerardnico.com/wiki/dat/obiee/ago
or
http://iniu.net/content/obiee-time-comparison-using-time-series-function-ago
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reapplication_obips1
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Edited by: Devarasu on Jun 19, 2012 4:54 PM
Edited by: Devarasu on Jun 19, 2012 4:57 PM

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|| used for column seperation below.
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Edited by: user566193 on Aug 10, 2011 6:06 PM

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Here you go..
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