Question

我需要批量插入一个文本文件，该文件始终存储在同一个文件夹中。文件名为“employee_date”，其中日期部分并不总是实际日期。这是用户每天更改的动态日期（格式为YYYYMMDDHHMM）。

我需要的是一个批量插入该文本文件（已经格式化）的数据的查询。我的问题是批量插入不适用于变量或*.txt或employes*.txt。

我需要一个查询，只批量插入名称类似于EMPLOYEE_YYYYMMDDHHMM.txt的文件，该文件可以每天执行，并始终从该文件夹插入文件，无论文件名中的日期是什么。

Answer 1

您可以修改以满足您的要求。我有一个类似的任务，我们从Linux系统获取文件SFTP，我需要将这些数据上传到SQL Server。这是基本布局...了解文件位置，文件夹权限，SQL权限等都需要考虑。包括您是否可以在您的环境中运行命令shell代码。

CREATE procedure [dbo].[file_upload]
as

DECLARE @dt VARCHAR(10)                                                         --date variable but stored as VARCHAR for formatting of file name
DECLARE @fileLocation VARCHAR(128) = 'E:\SomeFolder\'                           --production location which is 
DECLARE @sql NVARCHAR(4000)                                                     --dynamic sql variable
DECLARE @fileName VARCHAR(128)                                                  --full file name variable

--This stores the file names into a temp table to be used in a cursor.
--The bottom part is handleing some date formatting i needed. You can change to what your files look like
IF OBJECT_ID('tempdb..#FileNames') IS NOT NULL DROP TABLE #FileNames
CREATE TABLE #FileNames (
    id int IDENTITY(1,1)
    ,subdirectory nvarchar(512)
    ,depth int
    ,isfile bit
    ,fileDate date null
    ,fileTime time null)
INSERT #FileNames (subdirectory,depth,isfile)
EXEC xp_dirtree @fileLocation, 1, 1

UPDATE #FileNames SET 
                        fileDate = CAST(SUBSTRING(subdirectory,LEN(subdirectory) - 19,10) AS DATE)
                        ,fileTime = CAST(REPLACE(SUBSTRING(subdirectory,LEN(subdirectory) - 8,5),'-',':') AS TIME)


--here's the cursor to loop through all the files
DECLARE c CURSOR FOR
select subdirectory from #FileNames

OPEN c
FETCH NEXT FROM c INTO @fileName

--For each file, bulk insert or what ever you want...

WHILE @@FETCH_STATUS = 0
    BEGIN
       --set the dynamic with the appropriate delimiters, if you want to keep headers, etc.
       SET @sql = 'BULK INSERT Server.dbo.someTable FROM '''+ @fileLocation + @fileName +''' WITH (FIELDTERMINATOR = ''|'',FIRSTROW=2,KEEPNULLS,ROWTERMINATOR = ''0x0a'')' 
       EXEC(@sql)

       --do some other stuff like logging, updating, etc...
    END

CLOSE c
DEALLOCATE c

Answer 2

这应该为你做。只需根据需要进行调整。

DECLARE @intFlag INT
SET @intFlag = 1
WHILE (@intFlag <=48)
BEGIN

PRINT @intFlag


declare @fullpath1 varchar(1000)
select @fullpath1 = '''your_path_here\employee_' + convert(varchar, getdate()- @intFlag , 112) + '.txt'''
declare @cmd1 nvarchar(1000)
select @cmd1 = 'bulk insert [dbo].[your_table_name] from ' + @fullpath1 + ' with (FIELDTERMINATOR = ''\t'', FIRSTROW = 2, ROWTERMINATOR=''0x0a'')'
exec (@cmd1)


SET @intFlag = @intFlag + 1

END
GO

批量插入文件名，每天更改

2 个答案: