Hive: Filtering Data between Specified Dates when Date is a String

Question

I\'m trying to filter data between September 1st, 2010 and August 31st, 2013 in a Hive table. The column containing the date is in string format (yyyy-mm-dd). I can use month()

Answer 1

You have to convert string formate to required date format as following and then you can get your required result.

hive> select * from salesdata01 where from_unixtime(unix_timestamp(Order_date, 'dd-MM-yyyy'),'yyyy-MM-dd') >= from_unixtime(unix_timestamp('2010-09-01', 'yyyy-MM-dd'),'yyyy-MM-dd') and from_unixtime(unix_timestamp(Order_date, 'dd-MM-yyyy'),'yyyy-MM-dd') <= from_unixtime(unix_timestamp('2011-09-01', 'yyyy-MM-dd'),'yyyy-MM-dd') limit 10;
OK
1   3   13-10-2010  Low 6.0 261.54  0.04    Regular Air -213.25 38.94
80  483 10-07-2011  High    30.0    4965.7593   0.08    Regular Air 1198.97 195.99
97  613 17-06-2011  High    12.0    93.54   0.03    Regular Air -54.04  7.3
98  613 17-06-2011  High    22.0    905.08  0.09    Regular Air 127.7   42.76
103 643 24-03-2011  High    21.0    2781.82 0.07    Express Air -695.26 138.14
127 807 23-11-2010  Medium  45.0    196.85  0.01    Regular Air -166.85 4.28
128 807 23-11-2010  Medium  32.0    124.56  0.04    Regular Air -14.33  3.95
160 995 30-05-2011  Medium  46.0    1815.49 0.03    Regular Air 782.91  39.89
229 1539    09-03-2011  Low 33.0    511.83  0.1 Regular Air -172.88 15.99
230 1539    09-03-2011  Low 38.0    184.99  0.05    Regular Air -144.55 4.89
Time taken: 0.166 seconds, Fetched: 10 row(s)
hive> select * from salesdata01 where from_unixtime(unix_timestamp(Order_date, 'dd-MM-yyyy'),'yyyy-MM-dd') >= from_unixtime(unix_timestamp('2010-09-01', 'yyyy-MM-dd'),'yyyy-MM-dd') and from_unixtime(unix_timestamp(Order_date, 'dd-MM-yyyy'),'yyyy-MM-dd') <= from_unixtime(unix_timestamp('2010-12-01', 'yyyy-MM-dd'),'yyyy-MM-dd') limit 10;
OK
1   3   13-10-2010  Low 6.0 261.54  0.04    Regular Air -213.25 38.94
127 807 23-11-2010  Medium  45.0    196.85  0.01    Regular Air -166.85 4.28
128 807 23-11-2010  Medium  32.0    124.56  0.04    Regular Air -14.33  3.95
256 1792    08-11-2010  Low 28.0    370.48  0.04    Regular Air -5.45   13.48
381 2631    23-09-2010  Low 27.0    1078.49 0.08    Regular Air 252.66  40.96
656 4612    19-09-2010  Medium  9.0 89.55   0.06    Regular Air -375.64 4.48
769 5506    07-11-2010  Critical    22.0    129.62  0.05    Regular Air 4.41    5.88
1457    10499   16-11-2010  Not Specified   29.0    6250.936    0.01    Delivery Truck  31.21   262.11
1654    11911   10-11-2010  Critical    25.0    397.84  0.0 Regular Air -14.75  15.22
2323    16741   30-09-2010  Medium  6.0 157.97  0.01    Regular Air -42.38  22.84
Time taken: 0.17 seconds, Fetched: 10 row(s)