SQL Server Function Reference

SQL Server ISJSON() Function

Learn how to use the SQL Server ISJSON JSON function to read or modify JSON values in SQL.

Syntax

ISJSON(json_value, path)

Basic Example

SELECT ISJSON(profile_json, '$.email') AS email
FROM users;

When to use it

Use ISJSON when you need a json operation in SQL Server. This page is designed as a quick reference for developers, analysts, and students comparing SQL dialects.

Common mistake

A common mistake is copying syntax from another SQL dialect. Always verify function name, argument order, and formatting tokens for SQL Server.

Related SQL Functions

MySQL JSON_EXTRACT() Function
MySQL JSON_ARRAY() Function
MySQL JSON_OBJECT() Function
MySQL JSON_SET() Function
MySQL JSON_REMOVE() Function
MySQL JSON_CONTAINS() Function

FAQ

Is ISJSON available in every SQL database?

Not always. Function names and argument behavior can differ across SQL engines.

Can I use this in SELECT queries?

Yes. Most SQL functions are commonly used in SELECT and often in WHERE, ORDER BY, and GROUP BY depending on the function.