I’m a newbie in HIVE. I want to include 0 rows in results I have one table like this is my query example result is but my desired result is How can I get a 0 in results? Answer You can do this but you need to remove where clause. You can also do using self join. EDIT – I
I have this query In the second LEFT JOIN, I would like to change the second condition pob.year = proc.anno_eleccion so that it does not only search for the exact year when joining. Instead, I would like to get the closer year stored in my pob table. For example, the first year stored in pob is 2003, so I want
I am not sure what is wrong with following hive query. However, it’s throwing error. I am able to run this queries individually. However, facing issues while running with union Error Answer Hive versions prior to 1.2.0 only support UNION ALL Workaround: Use UNION ALL instead of UNION, wrap all into subquery and apply distinct UNION is the same as
want to convert this number ‘20210412070422’ to date format ‘2021-04-12’ in hive I am trying but this returns null value from_unixtime(unix_timestamp(eap_as_of_dt, ‘MM/dd/yyyy’)) Answer The best methoid is to do without unix_timestamp/from_unixtime if possible and in your case it is possible. date() can be removed, string in yyyy-MM-dd format is compatible with date type: Result: Another efficient method using regexp_replace: If
I have string data in the form 2020-10-21 12:49:27.090 I want to cast it as a timestamp. When I do this: select cast(column_name as timestamp) as column_name from table_name all of the milliseconds are dropped, like this: 2020-10-21 12:49:27 I also tried this: select cast(date_format(column_name,’yyyy-MM-dd HH:mm:ss.SSS’) as timestamp) as column_name from table_name and the same problem persists, it drops the
I have a flag column in Hive table that I want to update after some processing. I have tried using hive and impala using the below query but it didn’t work, and got that it needs to be a kudu table …
In below Hive-query, I need to read the null / empty “string” tags as well, from the XML content. Only the non-null “string” tags are getting considered within the XPATH() list now….
What is the difference between CHAR() and VARCHAR() declarations from HQL?
I have a table that has numbers in string format. Ideally the table should contain 10 digit number in string format, but it has many junk values. I wanted to filter out the records that are not ideal …
I have a table that has an activity date of when things change such as 2020-08-13 123 Upgrade 2020-08-17 123 Downgrade 2020-08-21 123 Upgrade Basically this in relation to a line there are 3 …