Let's just say this. Coercing hive into doing something its not meant to do is kinda a waste of time. Sure you can rewrite any update as a delete/insert but that's not the point of Hive.
Seems like your going down a path here that's not optimal for your situation. You know, I could buy a Tesla and bury it in the ground and use it as a root cellar - but why? Cheers, Stephen On Mon, Mar 3, 2014 at 10:45 PM, yogesh dhari <yogeshh...@gmail.com> wrote: > Hello All, > > I have a use case in RDBMS query which I have implemented in > HIVE as.. > > > > *1.1) Update statement* *in RDBMS* > > update TABLE1 > set > Age= case when isnull(age,'') ='' then 'A= Current' else '240+ Days' end, > Prev_Age=case when isnull(prev_age,'') ='' then 'A= Current' else '240+ > Days' end; > *1.2) Update statement* *in HIVE* > > create table TABLE2 as select > a.* , > case when coalesce(a.age,'')='' then 'A=Current' else '240+ Days' end as > Age, > case when coalesce(a.prev_age,'')='' then 'A=Current' else '240+ Days' end > as Prev_age from TABLE1 a ; > > > > > > *Now I have a case statement in which I have a join condition*. > > > > *2) Join in RDBMS* > update TABLE1 > set a.Age = c.sys_buscd_item_desc1 > from TABLE1 a > join TABLE2 c > on c.sys_type_cd='AGE' > where isnull(a.age,'00')=c.sys_item; > commit; > > > > > > How can I implement this query into Hive, Pls help and suggest. > > > > Thanks In Advance > > Yogesh Kumar > > > > > > >
