![]() ![]() ![]() I published more than 650 technical articles on MSSQLTips, SQLShack, Quest, CodingSight, and SeveralNines. I am the author of the book " DP-300 Administering Relational Database on Microsoft Azure". Hi! I am Rajendra Gupta, Database Specialist and Architect, helping organizations implement Microsoft SQL Server, Azure, Couchbase, AWS solutions fast and efficiently, fix related issues, and Performance Tuning with over 14 years of experience. This path should reference the key in the JSON expression It specifies $.Name argument as JSON path. It has a JSON expression defined as a key (Name) and its value (“Rajendra”) In the query below, we defined a JSON expression and path. Let’s understand the JSON_VALUE() function using various examples.Įxample 1: Search a key value from JSON string We can specify the lax or strict value in this mode. Path mode: It is an optional argument.JSON_Path: It is the location of a scalar value in the JSON string.It should be a valid expression, and else it returns an error Expression: It is a variable or column containing a JSON string.JSON_MODIFY(): We can modify a value in the JSON Data using this JSON-MODIFY() function.JSON_QUERY: We can extract an array or string from the JSON_QUERY() output.We will explore this function in detail in this article JSON_VALUE(): We can extract a scalar value from the JSON string.ISJSON(): It checks whether we have a valid JSON or not.We have the following JSON functions in SQL Server: You can refer to the following image from Microsoft docs to understand the interoperability between SQL table and JSON. You can go through article category k in SQLShack to understand more details about it. You can also format the T-SQL results in the JSON format. SQL Server provides various built-in-functions to parse, read, transform, and convert JSON objects. It also creates a bridge between a relational database and NoSQL systems. You should know JSON format and work with JSON data in SQL Server. SQL Server 2016 and later supports JSON format data. It is popular in modern web and mobile applications. JSON is a popular language and many NoSQL databases such a Couchbase, AWS DynamoDB. You can easily interpret JSON formatted data using its key-value pair. If you are familiar with XML, it is a bit hard to understand. It is a lightweight data exchange language. JSON is an acronym for “JavaScript Object Notation”. In this article, we will explore JSON_VALUE() function in SQL Server to extract scalar values from JSON data. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |