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Update a column

Posted on 2013-06-11
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Last Modified: 2013-06-11
Hi,
I have a column with DATE datatype and has data in it.
Based on this column, I would like to update another column that is of NUMBER datatype.
The data should be updated as follows:

source_column: 01-JAN-2013
target_column: 20130101 (YYYYMMDD format)

Could someone please suggest?

Thanks
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Question by:MRPT
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LVL 38

Expert Comment

by:Gerwin Jansen, EE MVE
ID: 39238157
Try this:

select to_number(to_char(trunc(source_column),'YYYYMMDD'))
from your_table;

(to see if you get the right values).
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Accepted Solution

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Gerwin Jansen, EE MVE earned 2000 total points
ID: 39238162
And if it looks OK, update like this:

update your_table
set target_column = to_number(to_char(trunc(source_column),'YYYYMMDD'));
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Author Closing Comment

by:MRPT
ID: 39238202
Works as wanted, thank you.
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