[MonogoDB] The high update operation of MongoDB, monogodbmongodb
In the last four blog, we talked about the high query operation of mongodb. Now in this blog let's know about the high update operation about monodb.1. Saveas for save (), whose function is to update the existing record and to create the new record.
Originally, I chose A. Is it right from the top of the high building? In fact, it is not the from here. The from where comes from see from. Because there is an attribute clause, it is advanced to the beginning of the first line word, and it is now the option. The original order is:
You cocould see the whole city from the top of the high building.
Can this be explained?
When compared with the size of the whole earth, the highest mountain does not seem high at all
When the subject of a clause is the same as that of the main clause, it can be omitted. Therefore, when the clause should be complete:
When it is compared with the size of the whole earth