正在解析来自 SQL 服务器 table 列的 JSON 数据
Parsing JSON data from SQL Server table column
我正在尝试从 SQL Server 2017 中的 table 解析 JSON 数据。我认为 return 这个数据：
| Debrief Name | Version | Answer Question | Answer Options |
+-------------------+-----------+--------------------------+--------------------------------------------------------------------------------------------------------------------------+
| Observer Report | 7 | Division: | {"Options":[{"Display":"Domestic","Value":"Domestic"},{"Display":"International","Value":"International"}]} |
| Observer Report | 7 | Are you on reserve? | {"Options":[{"Display":"Yes - Long Call Line","Value":"Yes"},{"Display":"No","Value":"No"}]} |
| Observer Report | 11 | Crew Position: | {"Options":[{"Display":"CA","Value":"CA"},{"Display":"RC","Value":"RC"},{"Display":"FO","Value":"FO"}]} |
| Observer Report | 11 | Domicile: | {"VisibleLines":2,"Options":[{"Display":"BOS","Value":"BOS"},{"Display":"CLT","Value":"CLT"}]} |
| Training Debrief | 12 | TRAINING CREW POSITION | {"VisibleLines":2,"Options":[{"Display":"CA","Value":"CA"},{"Display":"FO","Value":"FO"}]} |
| Training Debrief | 12 | AIRCRAFT | {"VisibleLines":2,"Options":[{"Display":"777","Value":"777"},{"Display":"767","Value":"767"}]} |
| Security Debrief | 9 | Aircraft Type | {"Options":[{"Display":"MD-80","Value":"MD-80"},{"Display":"777","Value":"777"},{"Display":"767/757","Value":"767/757"}]}|
| News Digest | 2 | Do you read Digest? | {"Options":[{"Display":"Yes","Value":"Yes"},{"Display":"No","Value":"No"}]} |
Debrief Name 列可以有多个相同的汇报名称和 Version 的记录。每个汇报也有多个版本。对于每个汇报名称和版本组合，都有一组 Answer Questions 和相关的 Answer Options。现在 Answer Options 列包含我需要解析的 JSON 记录。
所以我的初始查询如下所示：
SELECT *
FROM [dbo].<MY VIEW>
WHERE [Debrief Name] = 'Observer Report' AND Version = 11
这将 return 以下数据：
| Debrief Name | Version | Answer Question | Answer Options |
+---------------------+--------------+-----------------------+-----------------------------------------------------------------------------------------------------------------+
| Observer Report | 11 | Crew Position: | {"Options":[{"Display":"CA","Value":"CA"},{"Display":"RC","Value":"RC"}]} |
| Observer Report | 11 | Domicile: | {"VisibleLines":2,"Options":[{"Display":"BOS","Value":"BOS"},{"Display":"CLT","Value":"CLT"}]} |
| Observer Report | 11 | Fleet: | {"Options":[{"Display":"330","Value":"330"},{"Display":"320","Value":"320"}]} |
| Observer Report | 11 | Division: | {"Options":[{"Display":"Domestic","Value":"Domestic"},{"Display":"International","Value":"International"}]} |
| Observer Report | 11 | Are you on reserve? | {"Options":[{"Display":"Yes - Long Call Line","Value":"Yes - Long Call Line"},{"Display":"No","Value":"No"}]} |
现在根据这个 returned 结果，对于每个 Answer Question 我需要解析相关的 Answer Options JSON 数据并提取所有显示属性的值字段.例如，问题 "Are you on reserver?" 中 Answer Options 中的 JSON 字符串如下所示：
"Options":[
{
"Display":"330",
"Value":"330",
"Selected":false
},
{
"Display":"320",
"Value":"320",
"Selected":false
},
{
"Display":"S80",
"Value":"S80",
"Selected":false
}
]
所以我需要提取 "Value" 字段和 return 类似数组的值 {330, 320, 195}。
总而言之，我想构建一个查询，当我提供 Debrief Name 和 VersionNumber 时，它 return 给我 Answer Question 和所有 Answer Option 值。
我正在考虑使用如下存储过程：
CREATE PROCEDURE myProc
@DebriefName NVARCHAR(255),
@Version INT
AS
SELECT *
FROM [dbo].[myView]
WHERE [Debrief Name] = @DebriefName
AND Version = @Version
GO;
然后有另一个存储过程将从 myProc 捕获此结果，然后进行 JSON 解析：
CREATE PROCEDURE parseJSON
@DebriefName NVARCHAR(255),
@Version INT
AS
EXEC myProc @DebriefName, @Version; //Need to capture the result data in a temp table or something
// Parse the JSON data for each question item in temp table
GO;
我不是 SQL 方面的专家，所以不确定该怎么做。我在 SQL here 中阅读了有关 Json 解析的内容，感觉我可以使用它，但不确定如何在我的上下文中使用。
如果你想解析Answer Options列中的JSON数据并提取Value字段，你可以尝试使用以下方法，使用OPENJSON()和STRING_AGG():
DECLARE @json nvarchar(max)
SET @json = N'{
"Options": [
{
"Display": "330",
"Value": "330",
"Selected": false
},
{
"Display": "320",
"Value": "320",
"Selected": false
},
{
"Display": "195",
"Value": "195",
"Selected": false
}
]
}'
SELECT STRING_AGG(x.[value], ', ') AS [Values]
FROM OPENJSON(@json, '$.Options') j
CROSS APPLY (SELECT * FROM OPENJSON(j.[value])) x
WHERE x.[key] = 'Value'
输出：
Values
330, 320, 195
如果您想使用存储过程构建语句，请使用此方法：
CREATE TABLE myTable (
DebriefName nvarchar(100),
Version int,
AnswerQuestion nvarchar(1000),
AnswerOptions nvarchar(max)
)
INSERT INTO myTable
(DebriefName, Version, AnswerQuestion, AnswerOptions)
VALUES
(N'Observer Report', 7, N'Division:' , N'{"Options":[{"Display":"Domestic","Value":"Domestic"},{"Display":"International","Value":"International"}]}'),
(N'Observer Report', 7, N'Are you on reserve?' , N'{"Options":[{"Display":"Yes - Long Call Line","Value":"Yes"},{"Display":"No","Value":"No"}]}'),
(N'Observer Report', 11, N'Crew Position:' , N'{"Options":[{"Display":"CA","Value":"CA"},{"Display":"RC","Value":"RC"},{"Display":"FO","Value":"FO"}]}'),
(N'Observer Report', 11, N'Domicile:' , N'{"VisibleLines":2,"Options":[{"Display":"BOS","Value":"BOS"},{"Display":"CLT","Value":"CLT"}]}'),
(N'Training Debrief', 12, N'TRAINING CREW POSITION', N'{"VisibleLines":2,"Options":[{"Display":"CA","Value":"CA"},{"Display":"FO","Value":"FO"}]}'),
(N'Training Debrief', 12, N'AIRCRAFT' , N'{"VisibleLines":2,"Options":[{"Display":"777","Value":"777"},{"Display":"767","Value":"767"}]}'),
(N'Security Debrief', 9, N'Aircraft Type' , N'{"Options":[{"Display":"MD-80","Value":"MD-80"},{"Display":"777","Value":"777"},{"Display":"767/757","Value":"767/757"}]}'),
(N'News Digest', 2, N'Do you read Digest?' , N'{"Options":[{"Display":"Yes","Value":"Yes"},{"Display":"No","Value":"No"}]}')
SELECT
t.AnswerQuestion,
STRING_AGG(x.[value], ', ') AS [Values]
FROM myTable t
CROSS APPLY (SELECT * FROM OPENJSON(t.AnswerOptions, '$.Options')) j
CROSS APPLY (SELECT * FROM OPENJSON(j.[value])) x
WHERE
DebriefName = N'Observer Report' AND
t.Version = 11 AND
x.[key] = 'Value'
GROUP BY
t.DebriefName,
t.Version,
t.AnswerQuestion
输出：
AnswerQuestion Values
Crew Position: CA, RC, FO
Domicile: BOS, CLT
我正在尝试从 SQL Server 2017 中的 table 解析 JSON 数据。我认为 return 这个数据：
| Debrief Name | Version | Answer Question | Answer Options |
+-------------------+-----------+--------------------------+--------------------------------------------------------------------------------------------------------------------------+
| Observer Report | 7 | Division: | {"Options":[{"Display":"Domestic","Value":"Domestic"},{"Display":"International","Value":"International"}]} |
| Observer Report | 7 | Are you on reserve? | {"Options":[{"Display":"Yes - Long Call Line","Value":"Yes"},{"Display":"No","Value":"No"}]} |
| Observer Report | 11 | Crew Position: | {"Options":[{"Display":"CA","Value":"CA"},{"Display":"RC","Value":"RC"},{"Display":"FO","Value":"FO"}]} |
| Observer Report | 11 | Domicile: | {"VisibleLines":2,"Options":[{"Display":"BOS","Value":"BOS"},{"Display":"CLT","Value":"CLT"}]} |
| Training Debrief | 12 | TRAINING CREW POSITION | {"VisibleLines":2,"Options":[{"Display":"CA","Value":"CA"},{"Display":"FO","Value":"FO"}]} |
| Training Debrief | 12 | AIRCRAFT | {"VisibleLines":2,"Options":[{"Display":"777","Value":"777"},{"Display":"767","Value":"767"}]} |
| Security Debrief | 9 | Aircraft Type | {"Options":[{"Display":"MD-80","Value":"MD-80"},{"Display":"777","Value":"777"},{"Display":"767/757","Value":"767/757"}]}|
| News Digest | 2 | Do you read Digest? | {"Options":[{"Display":"Yes","Value":"Yes"},{"Display":"No","Value":"No"}]} |
Debrief Name 列可以有多个相同的汇报名称和 Version 的记录。每个汇报也有多个版本。对于每个汇报名称和版本组合，都有一组 Answer Questions 和相关的 Answer Options。现在 Answer Options 列包含我需要解析的 JSON 记录。
所以我的初始查询如下所示：
SELECT *
FROM [dbo].<MY VIEW>
WHERE [Debrief Name] = 'Observer Report' AND Version = 11
这将 return 以下数据：
| Debrief Name | Version | Answer Question | Answer Options |
+---------------------+--------------+-----------------------+-----------------------------------------------------------------------------------------------------------------+
| Observer Report | 11 | Crew Position: | {"Options":[{"Display":"CA","Value":"CA"},{"Display":"RC","Value":"RC"}]} |
| Observer Report | 11 | Domicile: | {"VisibleLines":2,"Options":[{"Display":"BOS","Value":"BOS"},{"Display":"CLT","Value":"CLT"}]} |
| Observer Report | 11 | Fleet: | {"Options":[{"Display":"330","Value":"330"},{"Display":"320","Value":"320"}]} |
| Observer Report | 11 | Division: | {"Options":[{"Display":"Domestic","Value":"Domestic"},{"Display":"International","Value":"International"}]} |
| Observer Report | 11 | Are you on reserve? | {"Options":[{"Display":"Yes - Long Call Line","Value":"Yes - Long Call Line"},{"Display":"No","Value":"No"}]} |
现在根据这个 returned 结果，对于每个 Answer Question 我需要解析相关的 Answer Options JSON 数据并提取所有显示属性的值字段.例如，问题 "Are you on reserver?" 中 Answer Options 中的 JSON 字符串如下所示：
"Options":[
{
"Display":"330",
"Value":"330",
"Selected":false
},
{
"Display":"320",
"Value":"320",
"Selected":false
},
{
"Display":"S80",
"Value":"S80",
"Selected":false
}
]
所以我需要提取 "Value" 字段和 return 类似数组的值 {330, 320, 195}。
总而言之，我想构建一个查询，当我提供 Debrief Name 和 VersionNumber 时，它 return 给我 Answer Question 和所有 Answer Option 值。
我正在考虑使用如下存储过程：
CREATE PROCEDURE myProc
@DebriefName NVARCHAR(255),
@Version INT
AS
SELECT *
FROM [dbo].[myView]
WHERE [Debrief Name] = @DebriefName
AND Version = @Version
GO;
然后有另一个存储过程将从 myProc 捕获此结果，然后进行 JSON 解析：
CREATE PROCEDURE parseJSON
@DebriefName NVARCHAR(255),
@Version INT
AS
EXEC myProc @DebriefName, @Version; //Need to capture the result data in a temp table or something
// Parse the JSON data for each question item in temp table
GO;
我不是 SQL 方面的专家，所以不确定该怎么做。我在 SQL here 中阅读了有关 Json 解析的内容，感觉我可以使用它，但不确定如何在我的上下文中使用。
如果你想解析Answer Options列中的JSON数据并提取Value字段，你可以尝试使用以下方法，使用OPENJSON()和STRING_AGG():
DECLARE @json nvarchar(max)
SET @json = N'{
"Options": [
{
"Display": "330",
"Value": "330",
"Selected": false
},
{
"Display": "320",
"Value": "320",
"Selected": false
},
{
"Display": "195",
"Value": "195",
"Selected": false
}
]
}'
SELECT STRING_AGG(x.[value], ', ') AS [Values]
FROM OPENJSON(@json, '$.Options') j
CROSS APPLY (SELECT * FROM OPENJSON(j.[value])) x
WHERE x.[key] = 'Value'
输出：
Values
330, 320, 195
如果您想使用存储过程构建语句，请使用此方法：
CREATE TABLE myTable (
DebriefName nvarchar(100),
Version int,
AnswerQuestion nvarchar(1000),
AnswerOptions nvarchar(max)
)
INSERT INTO myTable
(DebriefName, Version, AnswerQuestion, AnswerOptions)
VALUES
(N'Observer Report', 7, N'Division:' , N'{"Options":[{"Display":"Domestic","Value":"Domestic"},{"Display":"International","Value":"International"}]}'),
(N'Observer Report', 7, N'Are you on reserve?' , N'{"Options":[{"Display":"Yes - Long Call Line","Value":"Yes"},{"Display":"No","Value":"No"}]}'),
(N'Observer Report', 11, N'Crew Position:' , N'{"Options":[{"Display":"CA","Value":"CA"},{"Display":"RC","Value":"RC"},{"Display":"FO","Value":"FO"}]}'),
(N'Observer Report', 11, N'Domicile:' , N'{"VisibleLines":2,"Options":[{"Display":"BOS","Value":"BOS"},{"Display":"CLT","Value":"CLT"}]}'),
(N'Training Debrief', 12, N'TRAINING CREW POSITION', N'{"VisibleLines":2,"Options":[{"Display":"CA","Value":"CA"},{"Display":"FO","Value":"FO"}]}'),
(N'Training Debrief', 12, N'AIRCRAFT' , N'{"VisibleLines":2,"Options":[{"Display":"777","Value":"777"},{"Display":"767","Value":"767"}]}'),
(N'Security Debrief', 9, N'Aircraft Type' , N'{"Options":[{"Display":"MD-80","Value":"MD-80"},{"Display":"777","Value":"777"},{"Display":"767/757","Value":"767/757"}]}'),
(N'News Digest', 2, N'Do you read Digest?' , N'{"Options":[{"Display":"Yes","Value":"Yes"},{"Display":"No","Value":"No"}]}')
SELECT
t.AnswerQuestion,
STRING_AGG(x.[value], ', ') AS [Values]
FROM myTable t
CROSS APPLY (SELECT * FROM OPENJSON(t.AnswerOptions, '$.Options')) j
CROSS APPLY (SELECT * FROM OPENJSON(j.[value])) x
WHERE
DebriefName = N'Observer Report' AND
t.Version = 11 AND
x.[key] = 'Value'
GROUP BY
t.DebriefName,
t.Version,
t.AnswerQuestion
输出：
AnswerQuestion Values
Crew Position: CA, RC, FO
Domicile: BOS, CLT