フィールド指定
SELECT _id, item, status from inventory WHERE status = "A"
db.inventory.find( { status: "A" }, { item: 1, status: 1, _id: 0 } )
limit
db.bios.find().limit( 5 )
SELECT _id, item, status from inventory WHERE status = "A"
db.inventory.find( { status: "A" }, { item: 1, status: 1, _id: 0 } )
db.bios.find().limit( 5 )