IF OBJECT_ID('tempdb.dbo.#json_type') IS NOT NULL DROP TABLE #json_type
CREATE TABLE #json_type (    
    [type] TINYINT,
    [data_type] NVARCHAR(30)
)
INSERT INTO  #json_type ([type],[data_type]) VALUES 
(0,'null'),
(1,'string'),
(2,'int'),
(3,'true/false'),
(4,'array'),
(5,'object')
SELECT [type],[data_type] FROM #json_type

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
 
-- =============================================
-- Author:      Insus.NET
-- Create date: 2019-05-23
-- Update date: 2019-05-23
-- Description: 获取存储过程参数数据
-- =============================================
CREATE OR ALTER FUNCTION [dbo].[svf_JSONDataType]
(
    @type TINYINT
)
RETURNS NVARCHAR(MAX)
AS
BEGIN
    RETURN CASE
        WHEN @type = 0 THEN 'null'
        WHEN @type = 1 THEN 'string'
        WHEN @type = 2 THEN 'int'
        WHEN @type = 3 THEN 'true/false'
        WHEN @type = 4 THEN 'array'
        WHEN @type = 5 THEN 'object'
    END
END