Regarding updating the Flags for tracking history in customer dimension

Question

Hi Friends,
I need help,regarding tracking history in dimension tables.Actaully we have customer table and there is id and effective_date/expiration .Previously we were recieving 31/dec/9999 as highend date and I was able to update the active_flag based on this date in the table.Right now we started recieving the different dates
as 31/dec/2014,31/dec/9999.
I was using the below query :
UPDATE MDM_CUSTOMER_MST
SET ACTIVE_FLAG = 'N',
DELETE_FLAG = 'Y',
EFFECTIVE_END_DATE = TRUNC(CURRENT_DATE) -1
WHERE TRUNC(EXPIRATION_DATE) <>
(select max(EXPIRATION_DATE)
FROM MDM_CUSTOMER_MST
where ACTIVE_FLAG = 'Y'
AND CUSTOMER_TYPE = 'FACILITY'
and ACTIVE_FLAG = 'Y'
and CUSTOMER_TYPE = 'FACILITY'
AND CUSTOMER_KEY <> '-1'
it is working only if the highend date is '31-dec-9999' it is not working to track the history if it is '31-dec-2014' .could some one please help me to how to update the flag.

Answer 1

Hi,
user9977206 wrote:
Hi Friends,
I need help,regarding tracking history in dimension tables.Actaully we have customer table and there is id and effective_date/expiration .Previously we were recieving 31/dec/9999 as highend date and I was able to update the active_flag based on this date in the table.Right now we started recieving the different dates
as 31/dec/2014,31/dec/9999.
I was using the below query :
UPDATE MDM_CUSTOMER_MST
SET ACTIVE_FLAG = 'N',
DELETE_FLAG = 'Y',
EFFECTIVE_END_DATE = TRUNC(CURRENT_DATE) -1
WHERE TRUNC(EXPIRATION_DATE) <>This site doesn't like to display the &lt;&gt; inequality operator. Always use the other (equivalent) inequality operator, !=, when posting here.
Did you mean to use TRUNC (expiration_date) above, but expiration_date (without TRUNC) below?
(select max(EXPIRATION_DATE)
FROM MDM_CUSTOMER_MST
where ACTIVE_FLAG = 'Y'
AND CUSTOMER_TYPE = 'FACILITY'
and ACTIVE_FLAG = 'Y'
and CUSTOMER_TYPE = 'FACILITY'
AND CUSTOMER_KEY <> '-1'Again, it looks like a != sign is missing.
>
it is working only if the highend date is '31-dec-9999' it is not working to track the history if it is '31-dec-2014' .could some one please help me to how to update the flag.I'm willing to share what I know about SQL. Are you willing to share what you know about this problem? Post a complete test case that people can run to re-create the problem and test their ideas. Include CREATE TABLE and INSERT statements for some sample data (as the table is before the UPDATE) and the results you want from that sample data (that is, the contents of the table after the UPDATE). Explain how you get those results from that data.
As Jeneesh said, see the forum FAQ {message:id=9360002}