sql - Azure blob 到 Azure SQL 数据库 : Cannot bulk load because the file "xxxx.csv" could not be opened. 操作系统错误代码 5(访问被拒绝。)

Question

我正在尝试在 azure sql 数据库中批量加载 azure blob 存储中的一些数据。文件内容为:

 customer,age,gender
'C1093826151','4','M'
'C352968107','2','M'
'C2054744914','4','F'

该文件位于名为silver的容器中。在银色容器中，我有 File1.fmt，其内容是:

14.0  
3
1       SQLCHAR       0       7       ","      1     customer       ""  
2       SQLCHAR       0       100     ","      2     age            SQL_Latin1_General_CP1_CI_AS 
3       SQLCHAR       0       100     "\r\n"   3     gender         SQL_Latin1_General_CP1_CI_AS

我在 fmt 文件末尾添加了额外的行。

我已经创建了一个 SAS token ，将全部启用并允许，如下面的屏幕截图所示:

datalake上的防火墙规则如下图:

下面是我的 sql 脚本(我删除了 SAS token 开头的 ?，因为我的银容器是公共(public)的，我知道我应该需要 SAS token ):

CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'safepassword';
go
DROP EXTERNAL DATA SOURCE MyAzureInvoices

DROP DATABASE SCOPED CREDENTIAL UploadInvoices

CREATE DATABASE SCOPED CREDENTIAL UploadInvoices
WITH IDENTITY = 'SHARED ACCESS SIGNATURE',
SECRET = 'sv=2019-12-12**********************************88%3D'; -- dl

--DROP EXTERNAL DATA SOURCE MyAzureInvoices

CREATE EXTERNAL DATA SOURCE MyAzureInvoices
    WITH (
        TYPE = BLOB_STORAGE,
        LOCATION = 'https://mydatalake.blob.core.windows.net/silver',
        CREDENTIAL = UploadInvoices
    );

着陆台:

CREATE TABLE [ext].[customer](
    [customer_id] [int] IDENTITY(1,1) NOT NULL,
    [customer] [varchar](100) NOT NULL,
    [age] [int] NOT NULL,
    [gender] [varchar](50) NOT NULL
) ON [PRIMARY]
GO

这些是我尝试将文件加载到 sql 数据库中的方法:

-- 1
    SELECT * FROM OPENROWSET(
   BULK 'bs140513_032310-demo.csv',
   DATA_SOURCE = 'MyAzureInvoices',
   FORMAT = 'CSV',
   FORMATFILE='File1.fmt',
   FORMATFILE_DATA_SOURCE = 'MyAzureInvoices'
   ) AS DataFile;   
-- 2    
    go
    SELECT * FROM OPENROWSET(
   BULK 'bs140513_032310-demo.csv',
   DATA_SOURCE = 'MyAzureInvoices',
   SINGLE_CLOB) AS DataFile;
   go
-- 3
BULK INSERT ext.customer
FROM 'bs140513_032310-demo.csv'
WITH (
DATA_SOURCE = 'MyAzureInvoices', FORMAT = 'CSV' );

它们都给出相同的错误:

Msg 4861, Level 16, State 1, Line 2
Cannot bulk load because the file "bs140513_032310-demo.csv" could not be opened. Operating system error code 5(Access is denied.).

我已经尝试了三天，但我迷失了。感谢您的帮助注意:

断开连接时，它可以访问文件:

*

• https://mydatalake.blob.core.windows.net/silver/File1.fmt https://mydatalake.blob.core.windows.net/silver/bs140513_032310-demo.csv

mydatalake是假的，但我可以用实名访问

Answer 1

我认为此错误消息具有误导性。
我创建了与您相同的测试，并遇到了相同的错误。
但在我编辑 bs140513_032310-demo.csv 和 File1.fmt 后，它运行良好。

1. 我像这样更改了 bs140513_032310-demo.csv:

2. 我像这样更改了File1.fmt，将客户列长度从7更改为100，将年龄列长度更改为从 100 到 7:

14.0  
3
1       SQLCHAR       0       100       ","      1     customer       ""
2       SQLCHAR       0       7         ","      2     age            SQL_Latin1_General_CP1_CI_AS
3       SQLCHAR       0       100       "\r\n"   3     gender         ""

我使用以下语句来查询:

   SELECT * FROM OPENROWSET(
   BULK 'bs140513_032310-demo.csv',
   DATA_SOURCE = 'MyAzureInvoices',
   FORMAT = 'CSV',
   FORMATFILE='File1.fmt',
   FORMATFILE_DATA_SOURCE = 'MyAzureInvoices'
   ) AS DataFile; 

结果显示:

不要直接批量插入到您的真实表中。

• 我总是会从 CSV 文件插入临时表 ext.customer_Staging(不带 IDENTITY 列)
• 可能编辑/清理/操作您导入的数据
• 然后使用如下 T-SQL 语句将数据复制到真实表:

INSERT into  ext.customer_Staging with (TABLOCK) (customer, age, gender)
   SELECT * FROM OPENROWSET(
   BULK 'bs140513_032310-demo.csv',
   DATA_SOURCE = 'MyAzureInvoices',
   FORMAT = 'CSV',
   FORMATFILE='File1.fmt',
   FORMATFILE_DATA_SOURCE = 'MyAzureInvoices'
   ) AS DataFile;
   go

INSERT INTO ext.customer(Name, Address) 
   SELECT customer, age, gender
   FROM ext.customer_Staging