Hi,
I'm trying to write a view that returns a historical view of records
as of a certain date. The records come from a live and historical
table and I need to return the records as they were in the live table
on various dates. The SQL to do this is no problem but it requires a
date value in a where clause in an inner select (the sql is below for
reference - the date value that needs to be variable is hardcoded as
'01/01/2001'). Can I somehow pass this into a view or is a view the
correct approach?
Thanks,
Mark
CREATE OR REPLACE VIEW CGPPR_GLOBAL_FPS_AT_DATE ( GLOBAL_FP_ID,
GLOBAL_FP_PRICE, GLOBAL_FP_COMMENT, GLOBAL_FP_TBU, GLOBAL_FP_DISC_CAT,
GLOBAL_FP_VOL_DISC, GLOBAL_FP_PARTNER_PRICE, GLOBAL_FP_LIST_PRICE,
GLOBAL_FP_MSCAT, GLOBAL_FP_WPCAT, GLOBAL_FP_EFF_DATE,
GLOBAL_FP_MOD_WHO, GLOBAL_FP_MOD_DATE )
AS
Select tblA.* From (
Select GLOBAL_FP_ID, GLOBAL_FP_PRICE, GLOBAL_FP_COMMENT,
GLOBAL_FP_TBU, GLOBAL_FP_DISC_CAT, GLOBAL_FP_VOL_DISC,
GLOBAL_FP_PARTNER_PRICE, GLOBAL_FP_LIST_PRICE, GLOBAL_FP_MSCAT,
GLOBAL_FP_WPCAT, GLOBAL_FP_EFF_DATE, GLOBAL_FP_MOD_WHO,
GLOBAL_FP_MOD_DATE
From cgppr_global_fps
UNION ALL
Select GLOBAL_FP_ID, GLOBAL_FP_PRICE, GLOBAL_FP_COMMENT,
GLOBAL_FP_TBU, GLOBAL_FP_DISC_CAT, GLOBAL_FP_VOL_DISC,
GLOBAL_FP_PARTNER_PRICE, GLOBAL_FP_LIST_PRICE, GLOBAL_FP_MSCAT,
GLOBAL_FP_WPCAT, GLOBAL_FP_EFF_DATE, GLOBAL_FP_MOD_WHO,
GLOBAL_FP_MOD_DATE
From cgppr_global_fps
) tblA,
(
Select GLOBAL_FP_ID, Max(GLOBAL_FP_MOD_DATE) GLOBAL_FP_MOD_DATE
From
(
Select GLOBAL_FP_ID, GLOBAL_FP_MOD_DATE
From cgppr_global_fps
UNION
Select GLOBAL_FP_ID, GLOBAL_FP_MOD_DATE
From cgppr_h_global_fps
)
Where GLOBAL_FP_MOD_DATE < to_date('01/01/2001', 'dd/mm/YY')
Group By GLOBAL_FP_ID
) tblB
Where tblA.GLOBAL_FP_ID = tblB.GLOBAL_FP_ID
And tblA.GLOBAL_FP_MOD_DATE = tblB.GLOBAL_FP_MOD_DATE
WITH READ ONLY;
