Index: library/mongodb/example-nx-reference-many.tcl
===================================================================
diff -u -rc9ef41c49f482a38e89f7cffc54cabf909710425 -ra77464d1f7a06117c621560ec519dc4d387ed5df
--- library/mongodb/example-nx-reference-many.tcl	(.../example-nx-reference-many.tcl)	(revision c9ef41c49f482a38e89f7cffc54cabf909710425)
+++ library/mongodb/example-nx-reference-many.tcl	(.../example-nx-reference-many.tcl)	(revision a77464d1f7a06117c621560ec519dc4d387ed5df)
@@ -11,8 +11,8 @@
 ::nx::mongo::db connect -db "tutorial"
 
 # Make sure, we start always from scratch
-nx::mongo::db remove tutorial.groups {}
-nx::mongo::db remove tutorial.members {}
+nx::mongo::db drop collection groups
+nx::mongo::db drop collection members
 
 ######################################################################
 # The first approach to implement references simply as multivalued