mongo
mongo 192.168.50.160:27017
use funsapp
db.getCollection("users").find()
创建索引
db.users.ensureIndex({"name":1},{"unique":true})
db.users.ensureIndex({"email":1},{"unique":true, sparse:true})
db.users.ensureIndex({"phone":1},{"unique":true, sparse:true})
查看索引
db.users.getIndexes()
查看索引大小
db.COLLECTION_NAME.totalIndexSize()
删除索引
db.users.dropIndex("INDEX-NAME")
db.users.dropIndex("email_1")
db.users.dropIndex("phone_1")
删除所有索引
db.users.dropIndexes()