# mongoc_collection_delete_many()¶

## Synopsis¶

bool
mongoc_collection_delete_many (mongoc_collection_t *collection,
const bson_t *selector,
const bson_t *opts,
bson_error_t *error);


## Parameters¶

opts may be NULL or a BSON document with additional command options:

## Description¶

This function removes all documents in the given collection that match selector.

To delete at most one matching document, use mongoc_collection_delete_one().

If you pass a non-NULL reply, it is filled out with the field “deletedCount”. If there is a server error then reply contains either a “writeErrors” array with one subdocument or a “writeConcernErrors” array. The reply must be freed with bson_destroy().

## Errors¶

Errors are propagated via the error parameter.

## Returns¶

Returns true if successful. Returns false and sets error if there are invalid arguments or a server or network error.