I am trying to find out the database in which SQL Extensions Toolkit was installed.
One thing to keep in mind is that the SQL Extension Toolkit is a collection of user defined functions, and they can be installed in multiple databases, and each installation could be at a different level.
If you have access to the Netezza host, you can use nz_find_object to look for the REGEXP_VERSION function which is in every SQL Extensions installation (and will also then tell you what version is installed).
[nz@netezza ~]$ /nz/support/bin/nz_find_object REGEXP_VERSION
The Object Name Is | It Is Of Type | Its 'objid' Is | In The Database | In The Schema
-----------------------+---------------+----------------+-----------------+---------------
REGEXP_VERSION#239027 | FUNCTION | 239027 | SQLEXT | ADMIN
(1 row)
Or you can use this SQL:
select OBJNAME, DATABASE from _t_object o
left outer join _v_database d on o.objdb = d.objid
where OBJNAME like 'REGEXP_VERSION#%';
OBJNAME | DATABASE
-----------------------+----------
REGEXP_VERSION#239027 | SQLEXT
(1 row)
select sqlext..REGEXP_VERSION(); REGEXP_VERSION
--------------------------------------------------------------------------------------
IBM Netezza SQL Extensions XML / Regular Expression Library Version 7.2.1.3 Build ()
(1 row)