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2025-04-02 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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1. View the collection
Show collections
two。 Add data to the collection
Db.runoob.insertMany ([
{
'title':'data1'
'url':' https://blog.51cto.com/suyanzhu',
'description':'this is data1'
'view':5000
}
{
'title':'data2'
'url':' https://blog.51cto.com/suyanzhu',
'description':'this is data2'
'view':3650
}
{
'title':'data3'
'url':' https://blog.51cto.com/suyanzhu',
'description':'this is data3'
'view':9527
}
])
3. Add data to the collection
Db.runoob.insert ({
Title: 222
Description: 'mongodb'
By: 'suyanzhu'
Url: 'https://blog.51cto.com/suyanzhu',
Tags: ['php','mongodb']
Likes: 200
})
4. View all data
Db.runoob.find () .pretty ()
5. Query data by type
/ / query data whose title type is a string
Db.runoob.find ({'title': {$type:2}}) .pretty ()
/ / or
Db.runoob.find ({'title': {$type:'string'}}) .pretty ()
/ / query data whose title type is numeric
Db.runoob.find ({'title': {$type:1}}) .pretty ()
/ / or
Db.runoob.find ({'title': {$type:'double'}}) .pretty ()
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