Contents of page >
Method 1 to use AND and OR condition in MongoDB >
- using $and operator and
- using $or operator.
First, Let's create new collection and insert document in it >
> db.employee.insert({_id : 1, firstName:"ankit"})
> db.employee.insert({_id : 2, firstName:"ankit", salary : 1000 })
> db.employee.insert({_id : 3, firstName:"sam", salary : 2000 })
> db.employee.insert({_id : 4, firstName:"neh", salary : 3000 })
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First line above will create table (or collection) (if table already exists it will insert documents in it).
Find employee where
Salary =1000 and ( id = 1 or firstName = "ankit")
by using find method, $and and $or operators.
> db.employee.find({
$and : [{
salary : 1000
}, {
$or : [{
_id : 1
}, {
firstName : "ankit"
}
]
}
]
})
|
Output>
{ "_id" : 2, "firstName" : "ankit", "salary" : 1000 }
|
Method 2 to use AND and OR condition in MongoDB >
- using $and operator and
- using $or operator.
Find employee where
Salary = 1000 and ( id = 1 or firstName = "ankit")
by using find method, $and and $or operators.
Additionally, use $eq to find document where salary =1000
> db.employee.find({
$and : [{
salary : {$eq : 1000}
}, {
$or : [{
_id : 1
}, {
firstName : "ankit"
}
]
}
]
})
|
Output>
{ "_id" : 2, "firstName" : "ankit", "salary" : 1000 }
|
SUMMARY>
So in this mongoDB tutorial we learned how to Use AND and OR condition > using $and operator and $or operator. in mongoDB.
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