原创
2020-06-19 17:31:33
3111 阅读
1评论
MySQL语法MongoDB语法select * from t1;db.t1.find({},{_id:0})select id,name from t1;db.t1.find({},{_id:0,id:1,name:1})select id,name from t1 limit 1;db.t2.findOne({},{_id:0,id:1,name:1})select id,name from
原创
2020-06-08 11:55:56
1065 阅读
