The DB2 SYSIBM.SYSDUMMY1 table contains one row. The purpose of it is, for SQL statements in which a table reference is required, but the contents of the table are not important.
Use of SYSDUMM1 Table.
In DB2, the dummy table is SYSDUMMY1. You can use dummy table to know DATE, TIME and Current version of DB2.
Unlike the other catalog tables, which reside in Unicode table spaces, SYSIBM.SYSDUMMY1 resides in table space SYSEBCDC, which is an EBCDIC table space. Complete DB2 Course to Learn Quickly.
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DB2 Sysdumm1 Table.