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select * from table and select column from table in hive - Hive - [mail # user]
...I am able to see the data in the table for all the columns when I issue the following - SELECT * FROM t1 WHERE dt1='2013-11-20' But I am unable to see the column data when i issue the follow...
   Author: Raj Hadoop, 2014-10-20, 18:56
[expand - 4 more] - Remove duplicate records in Hive - Hive - [mail # user]
...Hi,I have a requirement in Hive to remove duplicate records ( they differ only by one column i.e a date column) and keep the latest date record.Sample :Hive Table : d2 is a higher cno,s...
   Author: Raj Hadoop, 2014-09-10, 17:08
Can I update just one row in Hive table using Hive INSERT OVERWRITE - Hive - [mail # user]
...Can I update ( delete and insert kind of)just one row keeping the remaining rows intact in Hive table using Hive INSERT OVERWRITE. There is no partition in the Hive table.INSERT OVERWRITE TA...
   Author: Raj Hadoop, 2014-04-04, 20:58
[expand - 1 more] - Sqoop import to HDFS and then Hive table - Issue with data type - Hive - [mail # user]
...All,I loaded data from an Oracle query through Sqoop to HDFS file. This is bzip compressed files partitioned by one column date.I created a Hive table to point to the above location.After lo...
   Author: Raj Hadoop, 2014-03-04, 22:24
[expand - 1 more] - part-m-00000 files and their size - Hive table - Hive - [mail # user]
...Hi,I am loading data to HDFS files through sqoop and creating a Hive table to point to these files.The mapper files through sqoop example are generated like this below.part-m-00000 part...
   Author: Raj Hadoop, 2014-02-26, 01:45
[expand - 1 more] - Can a hive partition contain a string like 'tr_date=2014-01-01' - Hive - [mail # user]
...I am trying to create a Hive partition like 'tr_date=2014-01-01'FAILED: ParseException line 1:58 mismatched input '-' expecting ) near '2014' in add partition statementhive_ret_val:  64Error...
   Author: Raj Hadoop, 2014-02-26, 01:19
Partition column on an Alpha Numeric Column - Hive - [mail # user]
...All,One of the primary key columns in a Relational table has alpha numberic of 6 characters - varchar(6).The first three characters has this pattern -1st one - 1 to 9    2nd one - 1 to 9 or ...
   Author: Raj Hadoop, 2014-02-11, 17:18
How can I just find out the physical location of a partitioned table in Hive - Hive - [mail # user]
...Hi,How can I just find out the physical location of a partitioned table in Hive.Show partitions gives me just the partition column info.I want the location of the hdfs directory / files wher...
   Author: Raj Hadoop, 2014-02-06, 18:24
Hive Query Error - Hive - [mail # user]
...I am trying to create a Hive sequence file from another table by running the following -Your query has the following error(s):OKFAILED: ParseException line 5:0 cannot recognize input near 'S...
   Author: Raj Hadoop, 2014-02-05, 17:08
[expand - 1 more] - Re: GenericUDF Testing in Hive - Hive - [mail # user]
...How to test a Hive GenericUDF which accepts two parameters List, T List -> Can it be the output of a collect set. Please advise.I have a generic udf which takes List, T. I want to test it...
   Author: Raj Hadoop, 2014-02-04, 19:33
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elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB