Mikebj的博客

使用java 操作MongoDB 的增删改查操作 1. 导入jar mongodb D jar包 mongo-java-driver-3.2.2.jar ，可以从 Mong-java-driver 下载jar 包‘import java.util.ArrayList; import java.util.List;import org.bson.Document;import com.mongod

DELETE FROM [FLEET_ENGINE] WHERE ID IN ( SELECT MIN(ID) AS ID FROM [dbo].[FLEET_ENGINE] group by [FLEET_FK] ,[ENGINE_SERIAL_NUM] having count(1)>1));