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Implement Text search in MongoDB
For text search, you need to use $text along with $search. Let us create a collection with documents −
> db.demo156.createIndex({"StudentName":"text"});
{
"createdCollectionAutomatically" : true,
"numIndexesBefore" : 1,
"numIndexesAfter" : 2,
"ok" : 1
}
> db.demo156.insertOne({"StudentName":"Chris Brown"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e3547e8fdf09dd6d08539e6")
}
> db.demo156.insertOne({"StudentName":"John Doe"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e3547f2fdf09dd6d08539e7")
}
> db.demo156.insertOne({"StudentName":"John Smith"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e3547f7fdf09dd6d08539e8")
}Display all documents from a collection with the help of find() method −
> db.demo156.find();
This will produce the following output −
{ "_id" : ObjectId("5e3547e8fdf09dd6d08539e6"), "StudentName" : "Chris Brown" }
{ "_id" : ObjectId("5e3547f2fdf09dd6d08539e7"), "StudentName" : "John Doe" }
{ "_id" : ObjectId("5e3547f7fdf09dd6d08539e8"), "StudentName" : "John Smith" }Following is the query to implement text search in MongoDB −
> db.demo156.find({ $text: { $search: "John" } } )This will produce the following output −
{ "_id" : ObjectId("5e3547f7fdf09dd6d08539e8"), "StudentName" : "John Smith" }
{ "_id" : ObjectId("5e3547f2fdf09dd6d08539e7"), "StudentName" : "John Doe" }
Updated on: 01-Apr-2020
76 Views
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