如何使用 sql 命令将 JSON 文件数据插入到 SQL Server 表中

Question

I am not so familiar with SQL.

I have a table in my SQL Server database called Product

CREATE TABLE [dbo].[Product] (
[Age]          INT           NULL,
[Name]         NVARCHAR (50) NULL,
[Id]           NVARCHAR (50) NULL,
[Price]        DECIMAL (18)  NULL,
[ImageUrl]     NVARCHAR (50) NULL,
[Snippet]      NVARCHAR (50) NULL
)

I have a JSON file (which locates in D:\\demo\\myjson.json ) where stores all my product info like:

[
  {
      "Age": 0, 
      "Id": "motorola-xoom-with-wi-fi", 
      "ImageUrl": "static/imgs/phones/motorola-xoom-with-wi-fi.0.jpg", 
      "Name": "Motorola XOOM\u2122 with Wi-Fi", 
      "Price":5000,
      "Snippet": "The Next, Next Generation\r\n\r\nExperience the future with Motorola XOOM with Wi-Fi, the world's first tablet powered by Android 3.0 (Honeycomb)."
  }, 
  {
      "Age": 1, 
      "Id": "motorola-xoom", 
      "ImageUrl": "static/imgs/phones/motorola-xoom.0.jpg", 
      "Name": "MOTOROLA XOOM\u2122", 
      "Price":5000,
      "Snippet": "The Next, Next Generation\n\nExperience the future with MOTOROLA XOOM, the world's first tablet powered by Android 3.0 (Honeycomb)."
  }

]

How can I write sql to get this file and import data into my Product table instead of manually doing this?

I am using SQL Server 2016 and SSMS.

Answer 1

You may try an approach, which uses OPENROWSET() (to read the file) and OPENJSON() with explicit schema (tp parse the input JSON). Note, that OPENROWSET() needs additional permissions . If the file contains unicode (widechar) input you should use SINGLE_NCLOB .

DECLARE @json nvarchar(max)

SELECT @json = BulkColumn
FROM OPENROWSET (BULK 'D:\demo\myjson.json', SINGLE_CLOB) as j

INSERT INTO [Product] ([Age], [Name], [Id], [Price], [ImageUrl], [Snippet])
SELECT [Age], [Name], [Id], [Price], [ImageUrl], [Snippet]
FROM OPENJSON(@json) WITH (
   Age int '$.Age',
   Name nvarchar(50) '$.Name',
   Id nvarchar(50) '$.Id',
   ImageUrl nvarchar(50) '$.ImageUrl',
   Price decimal(18) '$.Price',
   Snippet nvarchar(50) '$.Snippet'
)