Hive get mimimum of two values for where clause
I am trying to write a hive query such that i need to use a date based where clause to filter on records.
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND MINIMUM(date_sub(current_date, 1), to_date("2018-10-14"))
Can we do something like MINIMUM of two values?
sql hive
asked Nov 13 '18 at 23:47
Pratik KhadloyaPratik Khadloya
7,68145876
add a comment |
I am trying to write a hive query such that i need to use a date based where clause to filter on records.
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND MINIMUM(date_sub(current_date, 1), to_date("2018-10-14"))
Can we do something like MINIMUM of two values?
sql hive
asked Nov 13 '18 at 23:47
Pratik KhadloyaPratik Khadloya
7,68145876
add a comment |
I am trying to write a hive query such that i need to use a date based where clause to filter on records.
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND MINIMUM(date_sub(current_date, 1), to_date("2018-10-14"))
Can we do something like MINIMUM of two values?
sql hive
asked Nov 13 '18 at 23:47
Pratik KhadloyaPratik Khadloya
7,68145876
I am trying to write a hive query such that i need to use a date based where clause to filter on records.
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND MINIMUM(date_sub(current_date, 1), to_date("2018-10-14"))
Can we do something like MINIMUM of two values?
sql hive
sql hive
asked Nov 13 '18 at 23:47
Pratik KhadloyaPratik Khadloya
7,68145876
asked Nov 13 '18 at 23:47
Pratik KhadloyaPratik Khadloya
7,68145876
asked Nov 13 '18 at 23:47
Pratik KhadloyaPratik Khadloya
7,68145876
asked Nov 13 '18 at 23:47
Pratik KhadloyaPratik Khadloya
7,68145876
asked Nov 13 '18 at 23:47
Pratik KhadloyaPratik Khadloya
7,68145876
7,68145876
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
if you are using oracle then there is a keyword called "least" which will output the lesser of values.
Eg:
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND LEAST(date_sub(current_date, 1), to_date("2018-10-14"))
Otherwise you can handcraft the query to compare the two values as follows
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND (CASE WHEN date_sub(current_date, 1)< to_date("2018-10-14") THEN
date_sub(current_date, 1)
ELSE to_date("2018-10-14")
END)
answered Nov 14 '18 at 1:28
George JosephGeorge Joseph
1,44249
the first approach is better. i would suggest not usingcaseexpressions inwhere. btw..leastworks with Hive too.
– Vamsi Prabhala
Nov 14 '18 at 1:52
add a comment |
Don't bother. Just write:
WHERE date_key >= date_sub(current_date, 4) AND
date_key <= date_sub(current_date, 1) AND
date_key <= to_date('2018-10-14')
If something is less than the minimum of two values, then it is less than each of the values.
answered Nov 14 '18 at 4:24
Gordon LinoffGordon Linoff
764k35296400
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
if you are using oracle then there is a keyword called "least" which will output the lesser of values.
Eg:
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND LEAST(date_sub(current_date, 1), to_date("2018-10-14"))
Otherwise you can handcraft the query to compare the two values as follows
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND (CASE WHEN date_sub(current_date, 1)< to_date("2018-10-14") THEN
date_sub(current_date, 1)
ELSE to_date("2018-10-14")
END)
answered Nov 14 '18 at 1:28
George JosephGeorge Joseph
1,44249
the first approach is better. i would suggest not usingcaseexpressions inwhere. btw..leastworks with Hive too.
– Vamsi Prabhala
Nov 14 '18 at 1:52
add a comment |
if you are using oracle then there is a keyword called "least" which will output the lesser of values.
Eg:
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND LEAST(date_sub(current_date, 1), to_date("2018-10-14"))
Otherwise you can handcraft the query to compare the two values as follows
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND (CASE WHEN date_sub(current_date, 1)< to_date("2018-10-14") THEN
date_sub(current_date, 1)
ELSE to_date("2018-10-14")
END)
answered Nov 14 '18 at 1:28
George JosephGeorge Joseph
1,44249
the first approach is better. i would suggest not usingcaseexpressions inwhere. btw..leastworks with Hive too.
– Vamsi Prabhala
Nov 14 '18 at 1:52
add a comment |
if you are using oracle then there is a keyword called "least" which will output the lesser of values.
Eg:
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND LEAST(date_sub(current_date, 1), to_date("2018-10-14"))
Otherwise you can handcraft the query to compare the two values as follows
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND (CASE WHEN date_sub(current_date, 1)< to_date("2018-10-14") THEN
date_sub(current_date, 1)
ELSE to_date("2018-10-14")
END)
answered Nov 14 '18 at 1:28
George JosephGeorge Joseph
1,44249
if you are using oracle then there is a keyword called "least" which will output the lesser of values.
Eg:
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND LEAST(date_sub(current_date, 1), to_date("2018-10-14"))
Otherwise you can handcraft the query to compare the two values as follows
WHERE date_key
BETWEEN date_sub(current_date, 4)
AND (CASE WHEN date_sub(current_date, 1)< to_date("2018-10-14") THEN
date_sub(current_date, 1)
ELSE to_date("2018-10-14")
END)
answered Nov 14 '18 at 1:28
George JosephGeorge Joseph
1,44249
answered Nov 14 '18 at 1:28
George JosephGeorge Joseph
1,44249
answered Nov 14 '18 at 1:28
George JosephGeorge Joseph
1,44249
answered Nov 14 '18 at 1:28
George JosephGeorge Joseph
1,44249
1,44249
the first approach is better. i would suggest not usingcaseexpressions inwhere. btw..leastworks with Hive too.
– Vamsi Prabhala
Nov 14 '18 at 1:52
add a comment |
the first approach is better. i would suggest not usingcaseexpressions inwhere. btw..leastworks with Hive too.
– Vamsi Prabhala
Nov 14 '18 at 1:52
the first approach is better. i would suggest not using
case expressions in where. btw..least works with Hive too.– Vamsi Prabhala
Nov 14 '18 at 1:52
the first approach is better. i would suggest not using
case expressions in where. btw..least works with Hive too.– Vamsi Prabhala
Nov 14 '18 at 1:52
add a comment |
Don't bother. Just write:
WHERE date_key >= date_sub(current_date, 4) AND
date_key <= date_sub(current_date, 1) AND
date_key <= to_date('2018-10-14')
If something is less than the minimum of two values, then it is less than each of the values.
answered Nov 14 '18 at 4:24
Gordon LinoffGordon Linoff
764k35296400
add a comment |
Don't bother. Just write:
WHERE date_key >= date_sub(current_date, 4) AND
date_key <= date_sub(current_date, 1) AND
date_key <= to_date('2018-10-14')
If something is less than the minimum of two values, then it is less than each of the values.
answered Nov 14 '18 at 4:24
Gordon LinoffGordon Linoff
764k35296400
add a comment |
Don't bother. Just write:
WHERE date_key >= date_sub(current_date, 4) AND
date_key <= date_sub(current_date, 1) AND
date_key <= to_date('2018-10-14')
If something is less than the minimum of two values, then it is less than each of the values.
answered Nov 14 '18 at 4:24
Gordon LinoffGordon Linoff
764k35296400
Don't bother. Just write:
WHERE date_key >= date_sub(current_date, 4) AND
date_key <= date_sub(current_date, 1) AND
date_key <= to_date('2018-10-14')
If something is less than the minimum of two values, then it is less than each of the values.
answered Nov 14 '18 at 4:24
Gordon LinoffGordon Linoff
764k35296400
answered Nov 14 '18 at 4:24
Gordon LinoffGordon Linoff
764k35296400
answered Nov 14 '18 at 4:24
Gordon LinoffGordon Linoff
764k35296400
answered Nov 14 '18 at 4:24
Gordon LinoffGordon Linoff
764k35296400
764k35296400
add a comment |
add a comment |
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