从 JSON 数组中提取值以用于 where 子句 - SQL 服务器

Question

I have a SQL Server table which contains two columns; Player (VARCHAR), and Availability (JSON/VARCHAR). The data in this table is similar to the below:

Player         Availability
-------+-------------------------------
John   | { "Availability": [1, 3, 6] }
Yusuf  | { "Availability": [3, 4, 7] }
Ben    | { "Availability": [1, 2, 3] }

What I'm wanting is to write a query which will show me what players are available on a certain day (the numbers in the Availability column represent days).

Something like:

SELECT Player 
FROM TableName 
WHERE JSON_VALUE(Availability, '$.Availability') = 3;

This would return: John, Yusuf, and Ben.

Is this achievable?

Answer 1

you can use OPENJSON :

SELECT t.player, json.value
FROM TableName t
CROSS APPLY OPENJSON(Availability,'$.Availability') json
WHERE json.value = 3