You have created the procedure named sp1new using the time zone string AMERICA PACIFIC. The HELP PROCEDURE output for sp1new looks like this.
HELP PROCEDURE pa.sp1new ATTRIBUTES;
Result:
Transaction Semantics TERADATA
Print Mode N
Platform LINUX
Character Set ASCII
Default Character Data Type LATIN
Collation ASCII
SPL Text Y
Version Number 09
Default Database PA
Warning Option Y
Creation Timezone -07:00
Creation Timezone String AMERICA PACIFIC
Unicode Pass Through S
Suppose you then alter procedure sp1new, recompiling it at time zone GMT ‘01:00’.
ALTER PROCEDURE pa.sp1new COMPILE AT TIME ZONE ‘01:00’;
The HELP PROCEDURE output for sp1new now looks like this. Because you specified the time zone using GMT terminology rather than a time zone string, Vantage does not report a time zone string.
HELP PROCEDURE pa.sp1new ATTRIBUTES;
Result:
Transaction Semantics TERADATA
Print Mode N
Platform LINUX
Character Set ASCII
Default Character Data Type LATIN
Collation ASCII
SPL Y
Version Number 09
Default Database PA
Warning Option Y
Creation Timezone 01:00
Creation Timezone String
Unicode Pass Through S