Solution : https://service.sap.com/sap/support/notes/1244963 (SAP Service marketplace login required)
Key words :
UDB, LUW, logical unit of work, DB2UDB, DB2LUW, DB6, RS, read stability, UR, uncommitted read, CC_RELEASE, lib_dbsl
Related Notes :
1086678 | D345T updates |
1063532 | Deadlock when accessing D345T |
949737 | Generating screen & CUA loads in own LUW |