Concat/cast function while using Impala

[AJ16]

Hello Experts,

I'm querying a DB in Hadoop and need to combine the date and time fields within the query itself. I will then use the combined field to join to another Hadoop table but I'm not able to use cast and concat correctly:

Data available in DB:

Dt(string): 2024-06-14

Tm (string): 040507669747

Output that I'm trying to create:

Dat_time: 20240614040507669747

My query:

proc sql;

connect to impala (dsn=abc user="&sysuserid." pw="&password.");

create table abc as (

select id, dt, tm,

concat(cast(date_format(dt,'yyyymmdd') as string), tm) as dat_time  /*I tried creating this from what I've learned so far but it's giving error*/

from DB);

disconnect from impala;

quit;

Error: [Cloudera][Impala ODBC (370) Query analysis error occurred during query execution:  [HY000]: AnalysisException: default.date_format() unknown for database default. Currently this db has 0 functions.

I'm unable to figure the correct syntax to make this happen. Would appreciate any guidance.

Thank you!

[SASKiwi]

I'd suggest doing the date and time conversion in SAS not Impala. Start with this which should handle the date:

proc sql;
connect to impala (dsn=abc user="&sysuserid." pw="&password.");
create table abc as 
select  *
       ,input(dt, yymmdd10.) as SAS_Date format = date9.
from connection to impala 
(select id, dt, tm,
 from DB
);
disconnect from impala;
quit;

What does your time string represent? Is it hh:mm:ss like 04:05:07.669747 or something else?