use-openjson-with-the-default-schema-sql-server.md

description	Use OPENJSON with the Default Schema
title	Use OPENJSON with the Default Schema
ms.date	06/03/2020
ms.prod	sql
ms.technology
ms.topic	conceptual
helpviewer_keywords	OPENJSON, with default schema
ms.assetid	8e28a8f8-71a8-4c25-96b8-0bbedc6f41c4
author	jovanpop-msft
ms.author	jovanpop
ms.reviewer	jroth
ms.custom	seo-dt-2019
monikerRange	=azuresqldb-current||>=sql-server-2016||>=sql-server-linux-2017||=azuresqldb-mi-current

Use OPENJSON with the Default Schema

[!INCLUDE SQL Server ASDB, ASDBMI, ASDW ]

Use OPENJSON with the default schema to return a table with one row for each property of the object or for each element in the array.

Here are some examples that use OPENJSON with the default schema. For more info and more examples, see OPENJSON (Transact-SQL).

Example - Return each property of an object

Query

SELECT *
FROM OPENJSON('{"name":"John","surname":"Doe","age":45}') 

Results

Key	Value
name	John
surname	Doe
age	45

Example - Return each element of an array

Query

SELECT [key],value
FROM OPENJSON('["en-GB", "en-UK","de-AT","es-AR","sr-Cyrl"]') 

Results

Key	Value
0	en-GB
1	en-UK
2	de-AT
3	es-AR
4	sr-Cyrl

Example - Convert JSON to a temporary table

The following query returns all properties of the info object.

DECLARE @json NVARCHAR(MAX)

SET @json=N'{  
     "info":{    
       "type":1,  
       "address":{    
         "town":"Bristol",  
         "county":"Avon",  
         "country":"England"  
       },  
       "tags":["Sport", "Water polo"]  
    },  
    "type":"Basic"  
 }'

SELECT *
FROM OPENJSON(@json,N'lax $.info')

Results

Key	Value	Type
type	1	0
address	{ "town":"Bristol", "county":"Avon", "country":"England" }	5
tags	[ "Sport", "Water polo" ]	4

Example - Combine relational data and JSON data

In the following example, the SalesOrderHeader table has a SalesReason text column that contains an array of SalesOrderReasons in JSON format. The SalesOrderReasons objects contain properties like "Manufacturer" and "Quality." The example creates a report that joins every sales order row to the related sales reasons by expanding the JSON array of sales reasons as if the reasons were stored in a separate child table.

SELECT SalesOrderID,OrderDate,value AS Reason
FROM Sales.SalesOrderHeader
CROSS APPLY OPENJSON(SalesReasons)

In this example, OPENJSON returns a table of sales reasons in which the reasons appear as the value column. The CROSS APPLY operator joins each sales order row to the rows returned by the OPENJSON table-valued function.

Learn more about JSON in SQL Server and Azure SQL Database

Microsoft videos

For a visual introduction to the built-in JSON support in SQL Server and Azure SQL Database, see the following videos:

• JSON as a bridge between NoSQL and relational worlds

See Also

OPENJSON (Transact-SQL)