Remove the bogus "sysibm.sysdummy1" from your query. This join doesn't do anything in your case.
Code:
SELECT current timestamp AS timestamp,
RTRIM(tabname) AS table_name,
card
FROM syscat.tables
WHERE tabname IN ( 't1_OLD', 't2_OLD' )
Note that table names in the catalog views (like SYSCAT.TABLES) are case-sensitive. You must have used delimited identifiers in the table for you query to work, i.e.
Code:
CREATE TABLE "t1_OLD" ( ... )