如何將JSON數據轉換為記錄並插入到SQL Server使用中

Question

我是sqlserver的新手。 我想將json數據轉換為記錄並插入表中。 我有像這樣的json數據

    {  
   "HEADER":[  
      {  
         "seq_id":343,
         "max_processed_scn":649044274,
         "time_processed":"13-MAR-19 09.03.23.081055 PM",
         "status":"COMPLETED"
      },
      {  
         "seq_id":344,
         "max_processed_scn":649214903,
         "time_processed":"15-MAR-19 12.49.31.606172 PM",
         "status":"COMPLETED"
      }
   ],
   "DETAIL":[  
      {  
         "seq_id":11215,
         "event_id":1,
         "caller_seq":343,
         "event_description":"BEGIN.."
      },
      {  
         "seq_id":11216,
         "event_id":2,
         "caller_seq":343,
         "event_description":"STARTING"
      },
      {  
         "seq_id":11217,
         "event_id":2,
         "caller_seq":343,
         "event_description":"STARTED "
      } "event_description":"TOTAL"

   ]
   }

因此，我想將數組“ header”插入一個表，將另一個數組“ Detail”插入另一個表。有人可以幫助我實現這一點。 提前致謝

所以我需要像這樣的明細表數據

seq_id  max_processed_scn        time_processed               status
343      649044274          13-MAR-19 09.03.23.081055 PM    COMPLETED
344      649214903          15-MAR-19 12.49.31.606172 PM    COMPLETED

我用這個查詢：

   DECLARE @json NVARCHAR(MAX)
SET @json =  
N'[{  
   "HEADER":[  
      {  
         "seq_id":343,
         "max_processed_scn":649044274,
         "time_processed":"13-MAR-19 09.03.23.081055 PM",
         "status":"COMPLETED"
      },
      {  
         "seq_id":344,
         "max_processed_scn":649214903,
         "time_processed":"15-MAR-19 12.49.31.606172 PM",
         "status":"COMPLETED"
      }
   ],
   "DETAIL":[  
      {  
         "seq_id":11215,
         "event_id":1,
         "caller_seq":343,
         "event_description":"BEGIN.."
      },
      {  
         "seq_id":11216,
         "event_id":2,
         "caller_seq":343,
         "event_description":"STARTING"
      },
      {  
         "seq_id":11217,
         "event_id":2,
         "caller_seq":343,
         "event_description":"STARTED "
      } "event_description":"TOTAL"

   ]
   }
 ]'
SELECT *  
FROM OPENJSON(@json, '$.HEADER')  
  WITH (seq_id INT, max_processed_scn INT, time_processed NVARCHAR(100), [status] NVARCHAR(100)) 

Answer 1

您可以在SQL Server 2016及更高版本中使用以下查詢來讀取Json數據並插入所需的表中

樣本數據

declare @json varchar(max) =' {  
   "HEADER":[  
      {  
         "seq_id":343,
         "max_processed_scn":649044274,
         "time_processed":"13-MAR-19 09.03.23.081055 PM",
         "status":"COMPLETED"
      },
      {  
         "seq_id":344,
         "max_processed_scn":649214903,
         "time_processed":"15-MAR-19 12.49.31.606172 PM",
         "status":"COMPLETED"
      }
   ],
   "DETAIL":[  
      {  
         "seq_id":11215,
         "event_id":1,
         "caller_seq":343,
         "event_description":"BEGIN.."
      },
      {  
         "seq_id":11216,
         "event_id":2,
         "caller_seq":343,
         "event_description":"STARTING"
      },
      {  
         "seq_id":11217,
         "event_id":2,
         "caller_seq":343,
         "event_description":"STARTED "
      } 

   ]
   }
   '

查詢以選擇標題數據

  SELECT * FROM OPENJSON(@json, '$.HEADER') WITH (seq_id INT, max_processed_scn INT, time_processed NVARCHAR(50), [status] NVARCHAR(50))

查詢以選擇明細數據

SELECT * FROM OPENJSON(@json, '$.DETAIL') WITH (seq_id INT, event_id INT, caller_seq int, event_description NVARCHAR(255))