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How to query MongoDB with “like”?
You can easily query MongoDB with “like”:
db.yourCollectionName.find({"yourFieldName" : /.*yourMatchingValue.*/}).pretty();To understand the above syntax, let us create a collection with some documents. Here, we have a collection with the name ‘employee’. The query is as follows:
> db.employee.insert({"EmployeeName":"John","EmployeeSalary":450000});
WriteResult({ "nInserted" : 1 })
> db.employee.insert({"EmployeeName":"Carol","EmployeeSalary":150000});
WriteResult({ "nInserted" : 1 })
> db.employee.insert({"EmployeeName":"James","EmployeeSalary":550000});
WriteResult({ "nInserted" : 1 })
> db.employee.insert({"EmployeeName":"Jace","EmployeeSalary":670000});
WriteResult({ "nInserted" : 1 })
> db.employee.insert({"EmployeeName":"Larry","EmployeeSalary":1000000});
WriteResult({ "nInserted" : 1 })Now you can display all documents from a collection using find() method. The query is as follows:
> db.employee.find().pretty();
The following is the output:
{
"_id" : ObjectId("5c6c0b2e68174aae23f5ef59"),
"EmployeeName" : "John",
"EmployeeSalary" : 450000
}
{
"_id" : ObjectId("5c6c0b3b68174aae23f5ef5a"),
"EmployeeName" : "Carol",
"EmployeeSalary" : 150000
}
{
"_id" : ObjectId("5c6c0b4768174aae23f5ef5b"),
"EmployeeName" : "James",
"EmployeeSalary" : 550000
}
{
"_id" : ObjectId("5c6c0b8f68174aae23f5ef5c"),
"EmployeeName" : "Jace",
"EmployeeSalary" : 670000
}
{
"_id" : ObjectId("5c6c0b9e68174aae23f5ef5d"),
"EmployeeName" : "Larry",
"EmployeeSalary" : 1000000
}Here is the query in MongoDB with “like” operator:
> db.employee.find({"EmployeeName":/.*J.*/}).pretty();The following is the output:
{
"_id" : ObjectId("5c6c0b2e68174aae23f5ef59"),
"EmployeeName" : "John",
"EmployeeSalary" : 450000
}
{
"_id" : ObjectId("5c6c0b4768174aae23f5ef5b"),
"EmployeeName" : "James",
"EmployeeSalary" : 550000
}
{
"_id" : ObjectId("5c6c0b8f68174aae23f5ef5c"),
"EmployeeName" : "Jace",
"EmployeeSalary" : 670000
}
Updated on 30-Jul-2019 22:30:25
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