The PKGNAMCSN (Package Name, Consistency Token, and Section Number) parameter is used in a number of packet to refer to a specific query.
RDBNAM (string): Relational Database Name - the name of the database being accessed.
RDBCOLID (string): RDB Collection Identifier - this is usually "NULLID" for DB2.
PKGID (string): Package Identifier - an internal name like "SQLL9P1P".
PKGCNSTKN (byte[]): Consistency Token
PKGSN (short): Package Section Number
All properties can be changed, but this should be done only by advanced users.