从存储在SQL表中的XML字符串中提取多个值
尝试从值为XML的列中提取数据,如下所示,该列列出了报告在一周内运行的时间:从存储在SQL表中的XML字符串中提取多个值,sql,sql-server,ssms,Sql,Sql Server,Ssms,尝试从值为XML的列中提取数据,如下所示,该列列出了报告在一周内运行的时间: WeeklyRecurrence <WeeksInterval>1</WeeksInterval><DaysOfWeek><Sunday>false</Sunday><Monday>true</Monday><Tuesday>false</Tuesday><Wednesday>true</Wed
WeeklyRecurrence <WeeksInterval>1</WeeksInterval><DaysOfWeek><Sunday>false</Sunday><Monday>true</Monday><Tuesday>false</Tuesday><Wednesday>true</Wednesday><Thursday>false</Thursday><Friday>true</Friday><Saturday>false</Saturday></DaysOfWeek></WeeklyRecurrence>
我尝试过使用Substring和Charindex,但这只能得到第一行
提前感谢。这里有一个使用
节点()的快速示例。
我不确定你是否想要真正的价值观
Declare @XML xml = '<WeeklyRecurrence><WeeksInterval>1</WeeksInterval><DaysOfWeek><Sunday>false</Sunday><Monday>true</Monday><Tuesday>false</Tuesday><Wednesday>true</Wednesday><Thursday>false</Thursday><Friday>true</Friday><Saturday>false</Saturday></DaysOfWeek></WeeklyRecurrence>'
Select Item = xAttr.value('local-name(.)', 'nvarchar(100)')
,Value = xAttr.value('.','varchar(100)')
From @XML.nodes('//WeeklyRecurrence/DaysOfWeek/*') xNode(xAttr)
下面是使用
Nodes()
我不确定你是否想要真正的价值观
Declare @XML xml = '<WeeklyRecurrence><WeeksInterval>1</WeeksInterval><DaysOfWeek><Sunday>false</Sunday><Monday>true</Monday><Tuesday>false</Tuesday><Wednesday>true</Wednesday><Thursday>false</Thursday><Friday>true</Friday><Saturday>false</Saturday></DaysOfWeek></WeeklyRecurrence>'
Select Item = xAttr.value('local-name(.)', 'nvarchar(100)')
,Value = xAttr.value('.','varchar(100)')
From @XML.nodes('//WeeklyRecurrence/DaysOfWeek/*') xNode(xAttr)
如果表格有多行,则需要提取另一个值(WeeksInterval
?@t.ID
?),以便在本例中进一步区分结果
如果表中有多行,则需要提取另一个值(
WeeksInterval
?@t.ID
?),以便在这种情况下进一步区分结果。您看过XQUERY吗?我假设您的数据是有效的xml,并且位于xml
数据类型中;虽然当前是无效的XML,因为它以一个WeeklyRecurrence
标记结束,但是,它在开始时不是一个标记。公平地说,如果您的数据在表中,Jeroen Mostert answer是更好的解决方案,因为他使用了交叉应用程序。您看过XQUERY了吗?我假设您的数据是有效的xml,并且位于xml
数据类型中;虽然当前是无效的XML,因为它以一个WeeklyRecurrence
标记结束,但是,它在开始时不是标记。公平地说,如果数据在表中,Jeroen Mostert answer是更好的解决方案,因为他使用交叉APPLYPlus 1查看“表”。。。我错过了那加上1因为我看到了“桌子”。。。我错过了谢谢约翰,这工作很棒。我不熟悉Nodes()。我来读一下。谢谢约翰,这部作品很棒。我不熟悉Nodes()。我来读一下。
Item Value
Sunday false
Monday true
Tuesday false
Wednesday true
Thursday false
Friday true
Saturday false
DECLARE @t TABLE(schedule XML);
INSERT @t(schedule) VALUES (N'<WeeklyRecurrence><WeeksInterval>1</WeeksInterval><DaysOfWeek><Sunday>false</Sunday><Monday>true</Monday><Tuesday>false</Tuesday><Wednesday>true</Wednesday><Thursday>false</Thursday><Friday>true</Friday><Saturday>false</Saturday></DaysOfWeek></WeeklyRecurrence>');
SELECT
[day] = x.value('local-name(.)', 'nvarchar(max)'),
[present] = x.value('.', 'nvarchar(max)')
FROM @t
CROSS APPLY schedule.nodes('/WeeklyRecurrence/DaysOfWeek/*') w(x)
+-----------+---------+
| day | present |
+-----------+---------+
| Sunday | false |
| Monday | true |
| Tuesday | false |
| Wednesday | true |
| Thursday | false |
| Friday | true |
| Saturday | false |
+-----------+---------+