Question

我有一个表变量，它包含表的键，值对的记录。其中key是表的列，value是该列的值

下面是表变量

DECLARE @Table TABLE( 
FieldName varchar(100), 
FieldValue varchar(max))

insert into @Table values('Title','NewFrom')
insert into @Table values('Points','4')
insert into @Table values('createdby','5')

我在UsersInformation中有以上值。这是sql server的物理表有以下专栏。

 UserID int autoincrement(identity)
 Title nvarchar(100),
 Points int,
 createdby int

我希望@Table的所有值都应该是UserInformation表的一行。

如何使用sql server？

Answer 1

尚未测试，但这应该有效

INSERT INTO UsersInformation (Title, Points, createdby)
SELECT Title, Points, createdby FROM  (SELECT FieldName, FieldValue
FROM  @Table) AS SourceTable
PIVOT (MAX(FieldValue) FOR FieldName IN ([Points], [Title], [createdby])) AS PivotTable;

根据您的评论，您需要在源@table

中添加一个密钥

DECLARE @Table TABLE( 
id int,
FieldName varchar(100), 
FieldValue varchar(max))

insert into @Table values(1,'Title','NewFrom')
insert into @Table values(1,'Points','4')
insert into @Table values(1,'createdby','5')

insert into @Table values(2,'Title','NewFrom2')
insert into @Table values(2,'Points','44')
insert into @Table values(2,'createdby','55')

insert into @Table values(3,'Title','NewFrom3')
insert into @Table values(3,'Points','444')

然后您可以运行查询：

SELECT   [Title],   [Points], [createdby]
FROM   @Table
PIVOT
(
       max(FieldValue) FOR [FieldName] IN ([Title], [Points], [createdby])
) AS P

如何在表中插入keyvalue作为一行？

1 个答案: