DSNXRT1J
DSNXRT1J is used when Type 1 Indexes are used during a join procedure.
Hints
Check the possibility of converting to Type 2 Indexes.
Reference Sources
IBM Db2 for OS/390, Messages and Codes, GC26-8979
IBM Db2 for OS/390, Application Programming and SQL Guide, SC26-8958
IBM Db2 for OS/390, Administration Guide, SC26-8957