用SQL將JSON數據輸出表值數據

 

存儲過程代碼

CREATE PROC Proc_JsonConvertTable(@JSON VARCHAR(MAX))
AS 
--JSON測試數據
--SET @JSON='[{name:張三,age:18,hobby:打籃球},{name:李四,age:30,hobby:唱歌},{name:王五,age:33,hobby:跳舞}]';
--JSON測試數據處理
SET @JSON=REPLACE(@JSON,'[','');
SET @JSON=REPLACE(@JSON,']','');
SET @JSON=REPLACE(@JSON,'},{','}-*{');
DECLARE @ColName VARCHAR(15),
        @ColName_CN VARCHAR(15),
        @Value VARCHAR(100);

--取列名
SELECT TOP 1
        @Value=Value
FROM    dbo.SplitString(@JSON,'-*',1);
DECLARE @Value2 VARCHAR(100);
SET @Value2=@Value;
SET @Value2=REPLACE(@Value2,':',',');
SET @Value2=REPLACE(@Value2,'"','');
SET @Value2=REPLACE(@Value2,'{','');
SET @Value2=REPLACE(@Value2,'}','');
DECLARE cr1 CURSOR
FOR
SELECT  Value
FROM    dbo.SplitString(@Value2,',',1);
OPEN cr1;
DECLARE @col VARCHAR(50),
        @createSQL VARCHAR(500);
--拼接創建臨時表的SQL        
SET @createSQL='CREATE TABLE #TABLE (';
FETCH NEXT FROM cr1 INTO @col;

DECLARE @forindex INT; 
SET @forindex=2;
WHILE @@FETCH_STATUS=0
      BEGIN 
            IF @forindex%2=0
               BEGIN 
                     SET @createSQL=@createSQL+@col+' VARCHAR(50) NOT NULL,';
                     SET @JSON=REPLACE(@JSON,'"','');
                     SET @JSON=CONVERT(VARCHAR(500),REPLACE(@JSON,':','ACC'));
                     SET @JSON=REPLACE(@JSON,@col+'ACC','');
               END;    
            SET @forindex=@forindex+1;
            FETCH NEXT FROM cr1 INTO @col;
            
      END; 
CLOSE cr1;
DEALLOCATE cr1;
SET @createSQL=SUBSTRING(@createSQL,0,LEN(@createSQL));
SET @createSQL=@createSQL+');';
PRINT @createSQL;


--處理JSON數據,並將數據插入到臨時表
DECLARE cr CURSOR
FOR
SELECT  Value
FROM    dbo.SplitString(@JSON,'-*',1);
OPEN cr;
FETCH NEXT FROM cr INTO @Value;

WHILE @@FETCH_STATUS=0
      BEGIN 
            SET @Value=REPLACE(@Value,'{','');
            SET @Value=REPLACE(@Value,'}','');
            SET @Value=REPLACE(@Value,'"','');

            PRINT @Value; 
            SET @col=(SELECT    ''''+Value+''''+','
                      FROM      SplitString(@Value,',',1)
                FOR   XML PATH(''));
            SELECT  @col=SUBSTRING(@col,0,LEN(@col));
            PRINT @col;  
            SET @createSQL=@createSQL+'INSERT INTO #TABLE SELECT '+@col+';';
            FETCH NEXT FROM cr INTO @Value;
      END; 
SET @createSQL=@createSQL+'SELECT * FROM #TABLE;';
PRINT @createSQL;
CLOSE cr;
DEALLOCATE cr;

--執行SQL,並輸出結果
EXEC(@createSQL);

測試代碼

EXEC Proc_JsonConvertTable @JSON='[{name:蔡徐坤,age:18,hobby:唱、跳、Rap、籃球},{name:李四,age:30,hobby:唱歌},{name:王五,age:33,hobby:跳舞}]'

 

測試結果