| Pls help me out, its very urgent [message #41232] |
Wed, 11 December 2002 14:56  |
Vinod
Messages: 76
Registered: April 1999
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Member |
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I have a newly created table A as follows
SECTOR_CODE
SECTOR_DESCRIPTION
SECTOR_UPDATED_ID
SECTOR_UPDATED_DATE
SECTOR_CODE and SECTOR_DESCRIPTION are NOT NULL columns
I have another table B with same sector_description column.
The problem is that i have to insert sector_description column in table A by taking the distinct sector_description values from table B, how do i do this so that it takes the latest distinct values from table B.
values for the other 3 columns should be as follows
SECTOR_CODE is from a SEQUENCE
SECTOR_UPDATED_ID is USER
SECTOR_UPDATED_DATE is SYSDATE
pls help me out with this, its very urgent
Thanks
Vinod
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| Re: Pls help me out, its very urgent [message #41237 is a reply to message #41232] |
Wed, 11 December 2002 15:43  |
Todd Barry
Messages: 4819
Registered: August 2001
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Senior Member |
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If you are populating the date column in table_a with sysdate and not the corresponding date for the description from table_b, there is no concept of the "latest" entry from table_b.
The insert would just be the distinct descriptions from table_b.
insert into a
select seq.nextval, sector_description, user, sysdate
from (select distinct sector_description
from b); |
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