我正在寻求帮助,使用BULK INSERT将.csv文件导入SQL Server,我有一些基本的问题。

问题:

CSV文件的数据可能有,(逗号)之间(Ex: description),那么我如何使导入处理这些数据? 如果客户端从Excel中创建CSV,那么有逗号的数据被括在“”(双引号)[如下例],那么导入如何处理这一点? 我们如何跟踪某些行是否有坏数据,哪些导入被跳过?(导入会跳过不可导入的行)

下面是带标题的CSV示例:

Name,Class,Subject,ExamDate,Mark,Description
Prabhat,4,Math,2/10/2013,25,Test data for prabhat.
Murari,5,Science,2/11/2013,24,"Test data for his's test, where we can test 2nd ROW, Test."
sanjay,4,Science,,25,Test Only.

和SQL语句导入:

BULK INSERT SchoolsTemp
FROM 'C:\CSVData\Schools.csv'
WITH
(
    FIRSTROW = 2,
    FIELDTERMINATOR = ',',  --CSV field delimiter
    ROWTERMINATOR = '\n',   --Use to shift the control to next row
    TABLOCK
)

当前回答

从2013-11-05如何使用SQL Server Management Studio将CSV文件导入到数据库中:

First create a table in your database into which you will be importing the CSV file. After the table is created: Log into your database using SQL Server Management Studio Right click on your database and select Tasks -> Import Data... Click the Next > button For the Data Source, select Flat File Source. Then use the Browse button to select the CSV file. Spend some time configuring how you want the data to be imported before clicking on the Next > button. For the Destination, select the correct database provider (e.g. for SQL Server 2012, you can use SQL Server Native Client 11.0). Enter the Server name; Check Use SQL Server Authentication, enter the User name, Password, and Database before clicking on the Next > button. On the Select Source Tables and Views window, you can Edit Mappings before clicking on the Next > button. Check the Run immediately check box and click on the Next > button. Click on the Finish button to run the package.

其他回答

以下是我的解决方法:

只需将您的CSV文件保存为excel中的XLS表(通过这样做,您不必担心分隔符。Excel的电子表格格式将被读取为一个表,并直接导入到SQL表中) 使用SSIS导入文件 在导入管理器中编写一个自定义脚本,以省略/修改您正在寻找的数据。(或者运行一个主脚本来仔细检查要删除的数据)

祝你好运。

从2013-11-05如何使用SQL Server Management Studio将CSV文件导入到数据库中:

First create a table in your database into which you will be importing the CSV file. After the table is created: Log into your database using SQL Server Management Studio Right click on your database and select Tasks -> Import Data... Click the Next > button For the Data Source, select Flat File Source. Then use the Browse button to select the CSV file. Spend some time configuring how you want the data to be imported before clicking on the Next > button. For the Destination, select the correct database provider (e.g. for SQL Server 2012, you can use SQL Server Native Client 11.0). Enter the Server name; Check Use SQL Server Authentication, enter the User name, Password, and Database before clicking on the Next > button. On the Select Source Tables and Views window, you can Edit Mappings before clicking on the Next > button. Check the Run immediately check box and click on the Next > button. Click on the Finish button to run the package.

Import the file into Excel by first opening excel, then going to DATA, import from TXT File, choose the csv extension which will preserve 0 prefixed values, and save that column as TEXT because excel will drop the leading 0 otherwise (DO NOT double click to open with Excel if you have numeric data in a field starting with a 0 [zero]). Then just save out as a Tab Delimited Text file. When you are importing into excel you get an option to save as GENERAL, TEXT, etc.. choose TEXT so that quotes in the middle of a string in a field like YourCompany,LLC are preserved also...

BULK INSERT dbo.YourTableName
FROM 'C:\Users\Steve\Downloads\yourfiletoIMPORT.txt'
WITH (
FirstRow = 2, (if skipping a header row)
FIELDTERMINATOR = '\t',
ROWTERMINATOR   = '\n'
)

我希望我可以使用FORMAT和Fieldquote功能,但在我的SSMS版本中似乎不支持

All of the answers here work great if your data is "clean" (no data constraint violations, etc.) and you have access to putting the file on the server. Some of the answers provided here stop at the first error (PK violation, data-loss error, etc.) and give you one error at a time if using SSMS's built in Import Task. If you want to gather all errors at once (in case you want to tell the person that gave you the .csv file to clean up their data), I recommend the following as an answer. This answer also gives you complete flexibility as you are "writing" the SQL yourself.

注意:我将假设您运行的是Windows操作系统,并且能够访问Excel和SSMS。如果没有,我相信你可以调整这个答案来满足你的需求。

Using Excel, open your .csv file. In an empty column you will write a formula that will build individual INSERTstatements like =CONCATENATE("INSERT INTO dbo.MyTable (FirstName, LastName) VALUES ('", A1, "', '", B1,"')", CHAR(10), "GO") where A1 is a cell that has the first name data and A2 has the last name data for example. CHAR(10) adds a newline character to the final result and GO will allow us to run this INSERT and continue to the next even if there are any errors. Highlight the cell with your =CONCATENATION() formula Shift + End to highlight the same column in the rest of your rows In the ribbon > Home > Editing > Fill > Click Down This applies the formula all the way down the sheet so you don't have to copy-paste, drag, etc. down potentially thousands of rows by hand Ctrl + C to copy the formulated SQL INSERT statements Paste into SSMS You will notice Excel, probably unexpectedly, added double quotes around each of your INSERT and GO commands. This is a "feature" (?) of copying multi-line values out of Excel. You can simply find and replace "INSERT and GO" with INSERT and GO respectively to clean that up. Finally you are ready to run your import process After the process completes, check the Messages window for any errors. You can select all the content (Ctrl + A) and copy into Excel and use a column filter to remove any successful messages and you are left with any and all the errors.

这个过程肯定会比这里的其他答案花费更长的时间,但是如果您的数据是“脏的”并且充满SQL违规,您至少可以一次性收集所有错误并将它们发送给提供数据的人(如果您的场景是这样的话)。

解决数据中逗号问题的最好、最快和最简单的方法是在将Windows的列表分隔符设置为逗号以外的内容(如管道)后,使用Excel保存一个逗号分隔的文件。这将为您生成一个管道(或其他)分离文件,然后您可以导入该文件。这里描述了这一点。