的SQL Server 2016 JSON結果結構陣列

Question

這是我的表和數據

我的查詢：

SELECT [Name] 
    FROM [TestDB].[dbo].[MyCategory] 
WHERE [Category] = 'A' 
    FOR JSON AUTO 

結果：

[ 
    {"Name": "John"}, 
    {"Name": "Mary"}, 
    {"Name": "Dick"} 
] 

但我想結果如：

["John", "Mary", "Dick"] 

Answer 1

declare @stra varchar (200) 
set @stra = '' 

select top 5 @stra = 
    case when @stra = '' 
    then '["'+ Name 
    else @stra + coalesce('","' + Name, '') 
    end 
    from [TestDB].[dbo].[MyCategory] 

    set @stra= @stra +'"]' 
print @stra 

Answer 2

我不認爲這JSON格式在FOR JSON條款的支持，看到this article，雖然串["John","Mary","Dick"]使用ISJSON功能被認爲是有效的JSON。

你唯一的辦法很可能是自己修改的輸出是這樣的：

SET NOCOUNT ON 

DECLARE @MyCategory TABLE (ID int , Category char(1), [Name] varchar(50)) 

INSERT INTO @MyCategory VALUES (1, 'A', 'John') 
INSERT INTO @MyCategory VALUES (2, 'A', 'Mary') 
INSERT INTO @MyCategory VALUES (3, 'A', 'Dick') 
INSERT INTO @MyCategory VALUES (4, 'B', 'Sam') 

DECLARE @MyJSON varchar(max) 
SELECT @MyJSON = 
REPLACE(
REPLACE(
(
SELECT [Name] AS ReplaceMe 
    FROM @MyCategory 
WHERE [Category] = 'A' 
    FOR JSON AUTO 
    ), '{"ReplaceMe":','' 
    ) , '}','') 

PRINT @MyJSON 
PRINT ISJSON(@MyJSON) 

輸出到：

["John","Mary","Dick"] 
1 

Answer 3

基於馬格納Rekdal的回答SQL to JSON - array of objects to array of values in SQL 2016

SELECT REPLACE(
      REPLACE((
       SELECT [Name] 
       FROM [TestDB].[dbo].[MyCategory] 
       WHERE [Category] = 'A' 
       FOR JSON AUTO), '{"Name":','') 
       '}','')