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get dynamic date range
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-- Pure SQL way to get dynamic date range instead of pipelined function | |
-- as shown here: https://twitter.com/cczarski/status/1500830480358330370 | |
with | |
data as ( | |
select | |
level insert_order, | |
decode(level, | |
1, 'Since Yesterday', | |
2, 'Last Week', | |
3, 'Last Month', | |
4, 'Last Year', | |
5, 'Older than Last Year' | |
) disp, | |
sysdate - decode(level, | |
1, 1, | |
2, 7, | |
3, 30, | |
4, 365, | |
5, null) from_date, | |
sysdate - decode(level, | |
1, null, | |
2, 1, | |
3, 7, | |
4, 30, | |
5, 365 | |
) to_date, | |
'YYYYMMDDHH24MISS' date_format | |
from sys.dual | |
connect by level <= 5 | |
) | |
select | |
d.insert_order, | |
d.disp, | |
to_char(trunc(d.from_date), d.date_format) | |
|| '|' | |
|| to_char(trunc(d.to_date), d.date_format) val | |
from data d | |
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