With MongoDB v5.0+, you can use $setWindowFields to perform computation on nearby documents(i.e. documents within 15 minute interval). In ... ... <看更多>

Time intervals can be dynamic. There can be a minimum of 1 and a maximum of 4 time intervals. mongodb · group-by · aggregate · nosql. ... <看更多>

db.getCollection('users').aggregate([. {. $project: {. "_id":0,. "age": {. $divide: [. {. $subtract: [. new Date(),. { $ifNull: ["$birthday", new Date() ]}. ]. ... <看更多>

This video described about executing the query in MongoDB using Date field with find and aggregate in Tamil. ... <看更多>

这里用到的SpEL表达式 .andExpression("ceil((ctime - [0]) / [1])", new Date(0), interval) ， [0] 是占位符，表达式支持对时间类型的直接运算，默认会 ... ... <看更多>