How “SYSIBM.SYSDUMMY1” different from other catalog tables

The SYSIBM.SYSDUMMY1 table contains one row. The table is used 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.

Sysdumm1 Table

Column nameData typeDescriptionUse
IBMREQD CHAR(1)
NOT NULL
A value of Y indicates that the row came from the basic machine-readable material (MRM) tape. The value in this field is not a reliable indicator of release dependencies. G

References

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Author: Srini

Experienced software developer. Skills in Development, Coding, Testing and Debugging. Good Data analytic skills (Data Warehousing and BI). Also skills in Mainframe.