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Delete a collection from MongoDB with special characters?
In order to delete the collection which has some special characters like _ or -, you need to use the following syntax −
db.getCollection("yourCollectionName").drop();To understand the concept, let us create a collection with the document. The query to create a collection with a document is as follows −
> db.createCollection("_personalInformation");
{ "ok" : 1 }
> db.getCollection('_personalInformation').insertOne({"ClientName":"Chris","ClientCountryName":"US"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5c9158bb4afe5c1d2279d6b2")
}
> db.getCollection('_personalInformation').insertOne({"ClientName":"Mike","ClientCountryName":"UK"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5c9158c84afe5c1d2279d6b3")
}
> db.getCollection('_personalInformation').insertOne({"ClientName":"David","ClientCountryName":"AUS"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5c9158d54afe5c1d2279d6b4")
}Display all documents from a collection with the help of find() method. The query is as follows −
> db.getCollection('_personalInformation').find().pretty();The following is the output −
{
"_id" : ObjectId("5c9158bb4afe5c1d2279d6b2"),
"ClientName" : "Chris",
"ClientCountryName" : "US"
}
{
"_id" : ObjectId("5c9158c84afe5c1d2279d6b3"),
"ClientName" : "Mike",
"ClientCountryName" : "UK"
}
{
"_id" : ObjectId("5c9158d54afe5c1d2279d6b4"),
"ClientName" : "David",
"ClientCountryName" : "AUS"
}Here is the query to delete the collection from MongoDB which has a special character −
> db.getCollection("_personalInformation").drop();The following is the output −
True
The result TRUE states that we have deleted the collection from MongoDB completely.
Updated on: 30-Jul-2019
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