SYNOPSIS

          bool
          mongoc_collection_update (mongoc_collection_t *collection,
                                    mongoc_update_flags_t flags,
                                    const bson_t *selector,
                                    const bson_t *update,
                                    const mongoc_write_concern_t *write_concern,
                                    bson_error_t *error);

PARAMETERS

       • collection: A mongoc_collection_t <>.

       • flags: A bitwise or of mongoc_update_flags_t <>.

       • selector:  A  bson_t <https://www.mongoc.org/libbson/current/bson_t.html> containing the query to match
         documents for updating.

       • update: A bson_t <https://www.mongoc.org/libbson/current/bson_t.html> containing the update to perform.
         If updating with a pipeline, a bson_t <https://www.mongoc.org/libbson/current/bson_t.html> array.

       • write_concern: A mongoc_write_concern_t <>.

       • error: An optional location for a bson_error_t <> or NULL.

DESCRIPTION

       Note:
          To pass additional options, use mongoc_collection_update_one() <>, mongoc_collection_update_many() <>,
          or mongoc_collection_replace_one() <>.

       This function shall update documents in collection that match selector.

       By default, updates only a single document. Set flags to MONGOC_UPDATE_MULTI_UPDATE  to  update  multiple
       documents.

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.

       A write concern timeout or write concern error is considered a failure.

Author

       MongoDB, Inc

Copyright

       2009-present, MongoDB, Inc.

2.2.1                                             Dec 11, 2025                       MONGOC_COLLECTION_UPDATE(3)