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# Query Operations
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Query response configuration and utility enumerations for sorting and document merging strategies.
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## Capabilities
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### Update Response Types
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```python { .api }
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class UpdateResponse(Enum):
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    """Specify what to return from update operations."""
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    UPDATE_RESULT = "update_result"  # Return update result info
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    OLD_DOCUMENT = "old_document"    # Return document before update
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    NEW_DOCUMENT = "new_document"    # Return document after update
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```
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### Sort Direction
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```python { .api }
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class SortDirection(Enum):
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    """Sorting direction constants."""
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    ASCENDING = 1
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    DESCENDING = -1
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```
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### Merge Strategy
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```python { .api }
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class MergeStrategy(Enum):
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    """Strategy for merging documents during sync operations."""
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    local = "local"    # Prefer local changes
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    remote = "remote"  # Prefer database state
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```
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## Usage Examples
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```python
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from beanie import Document, UpdateResponse, SortDirection
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class Product(Document):
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    name: str
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    price: float
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    class Settings:
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        collection = "products"
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# Using UpdateResponse
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old_doc = await Product.find_one({"name": "laptop"}).update(
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    {"$set": {"price": 999.99}},
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    response_type=UpdateResponse.OLD_DOCUMENT
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)
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# Using SortDirection
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products = await Product.find().sort([("price", SortDirection.ASCENDING)]).to_list()
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```