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NEW T-SQL FEATURES IN SQL SERVER 2016 – XIII | ISJSON()
In this post we shall check out the new features Microsoft introduced in SQL Server 2016 | ISJSON()
New feature – XIII | ISJSON()
This function checks whether a string contains valid JSON or NOT.
Notes
1. In SQL Server 2016 JSON will be represented as NVARCHAR type.
2. Example of valid JSON
-- '{ "name":"Pawan" ,"MiddleName":"Kumar" ,"Surname":"Khowal" ,"Class":10 ,"SkillSet":["SQL","SSIS","SSRS","SSAS"] ,"IsDatabaseDeveloper":true }'; -- |
3. This function returns 1 if the string contains valid JSON; otherwise, returns 0. Returns null if expression is null.
4. ISJSON does not check the uniqueness of keys at the same level.
5. ISJSON does not does not return any errors.
/*Example of Valid JSON*/
-- SELECT ISJSON( '{ "name":"Pawan" ,"MiddleName":"Kumar" ,"Surname":"Khowal" ,"Class":10 ,"SkillSet":["SQL","SSIS","SSRS","SSAS"] ,"IsDatabaseDeveloper":true }') OUTPUT ----------- 1 (1 row affected) -- |
/*Example of InValid JSON*/
-- SELECT ISJSON( '{ Kumar }') OUTPUT ----------- 0 (1 row affected) -- |
/*Example of NULL JSON*/
-- SELECT ISJSON(NULL) ----------- NULL (1 row affected) -- |
Usage
/*Example of ISJSON Usage – 1*/
-- DECLARE @param NVARCHAR(MAX) SET @param = '{ "name":"Pawan" ,"MiddleName":"Kumar" ,"Surname":"Khowal" ,"Class":10 ,"SkillSet":["SQL","SSIS","SSRS","SSAS"] ,"IsDatabaseDeveloper":true }' IF (ISJSON(@param) > 0) BEGIN -- Do something END -- |
/*Example of ISJSON Usage – 2*/
-- SELECT * FROM table1 WHERE ISJSON(JSONColumn) > 0 -- |
Related Post
1. https://msbiskills.com/2018/01/22/new-t-sql-features-in-sql-server-2016-xii-openjson-function-sql-server/ |
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Refer Microsoft LINK below for more details-
1. https://docs.microsoft.com/en-us/sql/relational-databases/json/json-data-sql-server |
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Enjoy !!! Keep Learning
Pawan Khowal
Http://MSBISkills.com