Add reference Markdown: commands/query-and-write

reference/commands/query-and-write/delete.md

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+---
+title: delete
+description: The delete command in DocumentDB deletes documents that match a specified criteria
+type: commands
+category: query-and-write
+---
+
+# delete
+
+The `delete` command is used to remove documents from a collection. A single document or multiple documents can be deleted based on a specified query filter.
+
+## Syntax
+
+The basic syntax for the `delete` command is as follows:
+
+```mongodb
+db.collection.deleteOne(
+   <filter>,
+   <options>
+)
+
+db.collection.deleteMany(
+   <filter>,
+   <options>
+)
+```
+
+### Parameters
+
+| Parameter | Description |
+| --- | --- |
+| **<`filter`>** | A document that specifies the criteria for deletion. Only the documents that match the filter are deleted|
+| **`options`** | Optional. A document that specifies options for the delete operation. Common options include writeConcern and collation|
+
+## Example(s)
+
+Consider this sample document from the stores collection in the StoreData database.
+
+```json
+{
+    "_id": "0fcc0bf0-ed18-4ab8-b558-9848e18058f4",
+    "name": "First Up Consultants | Beverage Shop - Satterfieldmouth",
+    "location": {
+        "lat": -89.2384,
+        "lon": -46.4012
+    },
+    "staff": {
+        "totalStaff": {
+            "fullTime": 8,
+            "partTime": 20
+        }
+    },
+    "sales": {
+        "totalSales": 75670,
+        "salesByCategory": [
+            {
+                "categoryName": "Wine Accessories",
+                "totalSales": 34440
+            },
+            {
+                "categoryName": "Bitters",
+                "totalSales": 39496
+            },
+            {
+                "categoryName": "Rum",
+                "totalSales": 1734
+            }
+        ]
+    },
+    "promotionEvents": [
+        {
+            "eventName": "Unbeatable Bargain Bash",
+            "promotionalDates": {
+                "startDate": {
+                    "Year": 2024,
+                    "Month": 6,
+                    "Day": 23
+                },
+                "endDate": {
+                    "Year": 2024,
+                    "Month": 7,
+                    "Day": 2
+                }
+            },
+            "discounts": [
+                {
+                    "categoryName": "Whiskey",
+                    "discountPercentage": 7
+                },
+                {
+                    "categoryName": "Bitters",
+                    "discountPercentage": 15
+                },
+                {
+                    "categoryName": "Brandy",
+                    "discountPercentage": 8
+                },
+                {
+                    "categoryName": "Sports Drinks",
+                    "discountPercentage": 22
+                },
+                {
+                    "categoryName": "Vodka",
+                    "discountPercentage": 19
+                }
+            ]
+        },
+        {
+            "eventName": "Steal of a Deal Days",
+            "promotionalDates": {
+                "startDate": {
+                    "Year": 2024,
+                    "Month": 9,
+                    "Day": 21
+                },
+                "endDate": {
+                    "Year": 2024,
+                    "Month": 9,
+                    "Day": 29
+                }
+            },
+            "discounts": [
+                {
+                    "categoryName": "Organic Wine",
+                    "discountPercentage": 19
+                },
+                {
+                    "categoryName": "White Wine",
+                    "discountPercentage": 20
+                },
+                {
+                    "categoryName": "Sparkling Wine",
+                    "discountPercentage": 19
+                },
+                {
+                    "categoryName": "Whiskey",
+                    "discountPercentage": 17
+                },
+                {
+                    "categoryName": "Vodka",
+                    "discountPercentage": 23
+                }
+            ]
+        }
+    ]
+}
+```
+
+### Example 1 - Delete all documents in a collection
+
+```mongodb
+db.stores.deleteMany({})
+```
+
+### Example 2 - Delete a document that matches a specified query filter
+
+```mongodb
+db.stores.deleteOne({"_id": "68471088-4d45-4164-ae58-a9428d12f310"})
+```
+
+### Example 3 - Delete all documents that match a specified query filter
+
+```mongodb
+db.stores.deleteMany({"promotionEvents.discounts.discountPercentage": 21}, {"limit": 0})
+```
+
+### Example 3 - Delete only one of many documents that match a specified query filter
+
+```mongodb
+db.stores.deleteMany({"promotionEvents.discounts.discountPercentage": 21}, {"limit": 1})
+```
+
+## Related content
+
+- [insert with DocumentDB](insert)
+- [update with DocumentDB](update)