Mongodb shell中select in 的實現(xiàn)
var bookIds = db.likes.find({userId:100}).map(function(like) {
return like.bookId;
});
var books = db.books.find({_id:{$in:bookIds}});
return like.bookId;
});
var books = db.books.find({_id:{$in:bookIds}});
db.REPORT_ITEM.count({REQUEST_ID : db.BATCH_CONTROL.find({ FILE_NAME : "20200218_100000.file" }).map(function(like) {
return like._id;
})[0].str, JOB_TYPE_ENUM:"CHECK"})
return like._id;
})[0].str, JOB_TYPE_ENUM:"CHECK"})
posted on 2020-02-21 23:10 paulwong 閱讀(528) 評論(0) 編輯 收藏 所屬分類: MONGODB