Cache-SQL ZDATETIME function in SQL? - sql

Question

What function can I use (similar to ZDATETIME() in ObjectScript) in Cache SQL to translate from a seconds from epoch timestamp to a UTC timestamp? I looked into the documentation and could only find information on doing this in Object Script... What function can you use in the SQL? Thanks!

Answer 1

I think you're looking for something like this;
DECLARE #epoch INT
SET #epoch = 1348519792
SELECT DATEADD(MINUTE, DATEDIFF(MINUTE, GETUTCDATE(), GETDATE()), DATEADD(s, #epoch, '19700101 00:00:00:000'))
SQL Fiddle

Answer 2

Figured it out, I had to convert it all manually. I spent forever trying to find a pre-existing function, but here is how I did it:
select
TO_CHAR(substr(audit.stamp,1,5),'YYYY-MM-DD') AS Date,
CASE LEN(CAST(substr(audit.stamp,7)/3600 AS INT))
WHEN 2 THEN CAST(substr(audit.stamp,7)/3600 AS INT)
ELSE '0' || CAST(substr(audit.stamp,7)/3600 AS INT)
END || ':' ||
CASE LEN(CAST((substr(audit.stamp,7)/60)#60 AS INT))
WHEN 2 THEN CAST((substr(audit.stamp,7)/60)#60 AS INT)
ELSE '0' || CAST((substr(audit.stamp,7)/60)#60 AS INT)
END || ':' ||
CASE LEN(CAST(substr(audit.stamp,7)#60 AS INT))
WHEN 2 THEN CAST(substr(audit.stamp,7)#60 AS INT)
ELSE '0' || CAST(substr(audit.stamp,7)#60 AS INT)
END AS Time
from utility.audit
As taken from the Cache SQL Reference Manual:
CLOCKTIME
NEW
SET Time=$PIECE($HOROLOG,",",2)
SET Sec=Time#60
SET Totmin=Time\60
SET Min=Totmin#60
SET Milhour=Totmin\60
IF Milhour=12 { SET Hour=12,Meridian=" pm" }
ELSEIF Milhour>12 { SET Hour=Milhour-12,Meridian=" pm" }
ELSE { SET Hour=Milhour,Meridian=" am" }
WRITE !,Hour,":",Min,":",Sec,Meridian
QUITCLOCKTIME
NEW
SET Time=$PIECE($HOROLOG,",",2)
SET Sec=Time#60
SET Totmin=Time\60
SET Min=Totmin#60
SET Milhour=Totmin\60
IF Milhour=12 { SET Hour=12,Meridian=" pm" }
ELSEIF Milhour>12 { SET Hour=Milhour-12,Meridian=" pm" }
ELSE { SET Hour=Milhour,Meridian=" am" }
WRITE !,Hour,":",Min,":",Sec,Meridian
QUIT
Thanks!