我有以下表结构:
CREATE TABLE [dbo].[UTS_USERCLIENT_MAPPING_USER_LIST]
(
[MAPPING_ID] [int] IDENTITY(1,1) NOT NULL,
[USER_ID] [varchar](50) NULL,
[USER_EMAIL_ID] [varchar](100) NULL,
[USER_CREATED_DATE] [datetime] NULL,
[USER_IS_ACTIVE] [bit] NULL,
CONSTRAINT [PK_UTS_USERCLIENT_MAPPING_USER_LIST]
PRIMARY KEY CLUSTERED ([MAPPING_ID] ASC)
WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF,
IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON,
ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
在存储过程中,我有这个代码:
ALTER PROCEDURE [dbo].[PROC_UTS_USER_CLIENTMAPPING_LIST_SET]
(@RETURN_CODE INT OUTPUT,
@RETURN_MESSAGE NVARCHAR(512) OUTPUT,
@XML_USER_LIST xml)
AS
BEGIN TRY
SELECT
ROW_NUMBER() OVER(ORDER BY x.value('USERNAME[1]','nvarchar(50)')) AS MAPPING_ID,
x.value('USERNAME[1]', 'nvarchar(50)') as USER_ID,
x.value('EMAILID[1]', 'nvarchar(50)') as USER_EMAIL_ID,
x.value('CREATEDDATE[1]', 'datetime') as USER_CREATED_DATE,
x.value('ISACTIVE[1]', 'bit') as USER_IS_ACTIVE
INTO #tempXML
FROM @XML_USER_LIST.nodes('/DocumentElement/dtLstUsers') AS TEMPTABLE(x)
SELECT *
INTO UTS_USERCLIENT_MAPPING_USER_LIST
FROM #tempXML
END TRY
我的问题是上面的存储过程没有将数据插入
UTS_USERCLIENT_MAPPING_USER_LIST
来自 #tempXML
table 。我已经确保
#tempXML
表包含值。最佳答案
您的查询存在一些缺陷:
1 - 您在插入表之前尝试插入 IDENTITY 值而不设置 IDENTITY_INSERT ON,然后将其设置为 OFF
SET IDENTITY_INSERT UTS_USERCLIENT_MAPPING_USER_LIST ON
2 - SELECT * INTO 表将假定该表不存在并尝试在那里创建它,但会失败 -> 需要使用 INSERT INTO SELECT
INSERT INTO UTS_USERCLIENT_MAPPING_USER_LIST (cols)
SELECT cols
FROM #temp
3 - 您正在使用 ROW_NUMBER 函数计算 MAPPING_ID,该函数每次都会从 1 到 n(其中 n 是您在 xml 中拥有的节点数),但是您的表在 MAPPING_ID 列上有一个 PRIMARY KEY,这意味着它是唯一的,所以第二次您想插入 MAPPING_ID 1,会失败。
4 - 如果您有一个空的 CATCH 块,它将隐藏您的错误
现在,没有真正了解您对 MAPPING_ID 列的需求的解决方案是将那里的插入语句更改为:
INSERT INTO UTS_USERCLIENT_MAPPING_USER_LIST ([USER_ID], [USER_EMAIL_ID], [USER_CREATED_DATE], [USER_IS_ACTIVE])
SELECT [USER_ID], [USER_EMAIL_ID], [USER_CREATED_DATE], [USER_IS_ACTIVE]
FROM #tempXML
或者,如果您以某种方式从 xml 中找到了有效的 MAPPING_ID:
SET IDENTITY_INSERT UTS_USERCLIENT_MAPPING_USER_LIST ON
INSERT INTO UTS_USERCLIENT_MAPPING_USER_LIST ([MAPPING_ID], [USER_ID], [USER_EMAIL_ID], [USER_CREATED_DATE], [USER_IS_ACTIVE])
SELECT [MAPPING_ID], [USER_ID], [USER_EMAIL_ID], [USER_CREATED_DATE], [USER_IS_ACTIVE]
FROM #tempXML
SET IDENTITY_INSERT UTS_USERCLIENT_MAPPING_USER_LIST OFF
关于sql - 选择 * 进入失败,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/31806642/