Template
single collection
multiple collections
mgodatagen
update
indexe
explain
Stage
Database
bson
mgodatagen
[{sys_cd:["A","B"]},{sys_cd:["A","S"]},{sys_cd:["A","B","S"]},{sys_cd:["A"]},{sys_cd:["B","S"]},{sys_cd:["S"]}]
Query
db.collection.find({sys_cd:{$nin:[["A"],["B"],["A","B"]]}})
Result