Mongodb paging method

Paging method

cursor.limit(): How many documents
cursor.skip() : How many documents to skip

Example

//var cursor = db.person.find()
//  demand :  It is required that before taking out 5 A document 
//cursor.limit(5)
//  demand :  Ask to skip the previous 5 A document ,  Take out all the remaining 
//cursor.skip(5)
//  Be careful :  We can go straight to find Called after method limit Methods or skip Method 
//db.person.find().limit(5)
//db.person.find().skip(5)

######  Pay attention to paging functions 
//  Be careful : MongoDB It supports chain call 
//  demand :  Skip the front 5 A document ,  Take out the back one 5 A document 
//db.person.find().skip(5).limit(5)
//  Be careful : In the chain call ,  No matter what skip Before or after ,  Will be in limit Before execution 
db.person.find().limit(5).skip(10)

//var cuesor=db.person.find()
// demand : It is required to take out the first five pieces of data :
//cursor.limit(5)

// demand : Ask to skip the previous five documents , Take out the remaining documents 
//cuesor.skip(5)
// Be careful : We can do it in find Call back limit/skip Method 
//db.person.find().limit(5)
//db.person.find().skip(5)

// Be careful :mongodb It supports chain call 

// demand : Skip the front 5 Documents , Take out the next five documents :
db.person.find().skip(5).limit(5)
// Be careful : In the chain call , No matter what skip Before or after , Will be in limit Before execution