Using the ('dbspace', tblspace_num) Option
The 'dbspace' option returns a character string that contains
the name of the dbspace that corresponds to a tblspace number. You
must supply an additional parameter, either tblspace_num or
an expression that evaluates to tblspace_num. The following
example uses the 'dbspace' option. First, it queries the systables system
catalog table to determine the tblspace_num for the table customer,
then it executes the function to determine the dbspace name.
SELECT tabname, partnum FROM systables
where tabname = 'customer';
If the query returns a partition number of 1048892, you insert
that value into the second argument to find which dbspace contains
the customer table, as the following example shows:
SELECT DBINFO ('dbspace', 1048892) FROM systables where tabname = 'customer';
If the table for which you want to know the dbspace name is fragmented, you must query the sysfragments system catalog table to find out the tblspace number of each table fragment. Then you must supply each tblspace number in a separate DBINFO query to find out all the dbspaces across which a table is fragmented.