R Loop Through Subdirectories
R Loop Through Subfolders

In this post I’ll cover how to work with files and folders in R. Golden ears audio ear training program. Working with the current directory. Spine pro full crack. Unless you specify it otherwise, all files will be read and saved into the working directory. These folders may or may not contain.csv files. I want help writing a code that will select the main folder, and loop through the sub-folders, find the.csv files (if present) and move them to the main path (which is where the main folder is stored). Loop Through Subfolders using FileSystemObject A common Excel VBA requirement is to work with different files and folders of a directory.

How to Loop through Sub-Folders of a folder automatically using VBA and perform actions on the workbooks. Details of VBA code available at: https://www.excel.
This can be done by browsing to the directory where the files are, then looping through them importing and merging. Finally, the aggregated file can be written back to the disk. The piece of code below does just that. The first line paste the path where R must look at for the files.

SSIS Package to Extract File Names from a Folder and its Sub Folders and save in SQL Server Table
Scenario :
Suppose we have the Files in a Folder and its SubFolders as follows.
T:My_Tech_LabSSIS_LabSSIS_Proj1_Sol1Source

Now we want to Load the Files from above Folder and its inside Sub Folders to the below SQL Table 'dbo.FilesInfo'

We can accomplish Scenario, by Designing the Package as follows.

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MainFolder : This is a Static Variable, to which we will assign the Main Folder path, through which we need to loop through to read the Files. This variable we will use as Collection variable in the ForEach Loop Container.

FileFullPath :The value for this variable is Mapped by ForEach Loop container. In this variable the Full File Name with Path will be stored by ForEach Loop Container during the run time.

T:My_Tech_LabSSIS_LabSSIS_Proj1_Sol1SourceEmpSrc.txt

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Phase-2 : Add the ForEach Loop Container to Control Flow then Set Variables Mapping
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A) Add the ForEach Loop Container to Control Flow
B) Next in ForEach Loop Editor>Collection Tab, do the variable Mapping to the Directory from Expressions

R Loop Through Subdirectories

C) Next select the Options for.
Files as *.* to read and retrieve all file types.
Retrieve File Name as 'Full Qualified' to retrieve the File Full name with Extension and Forder Path.
Tick Mark the 'Traverse SubFolders' to Loop Through Sub Folders as well.
Loop

D) Next in ForEach Loop Editor>Variable Mappings Tab, map the 'User::FileFullPath' to Store the File Full name with Path, which will assign during run time.

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Phase-3 : Add the Execute SQL Task inside the ForEach Loop Container and do the Parameter Mapping

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A) Add the Execute SQL Task inside the ForEach Loop Container R Loop Through Subfolders

B)In Execute SQL Task > General Tab set the required Connection and SQL Statement
Here I use the below SQL Statement with a Parameter ?
Insert Into [dbo].[FilesInfo] ([FileFullPathName] ) Through

Values (?)

C)In Execute SQL Task > Parameter Mapping do the required Mappings

Here we map the Parameter 'User::FileFullPath'to pass the values to the Field '[FileFullPathName]' used in the above Insert Statement.

R Loop Through Subfolders

D) Finally Save and Run the Package Loop

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Now the Output looks like as follows in SQL Table..

If you want to Retrieve the Folder and File Names from the File Full Path Column, you can run the below SQL Statement..

SELECT [FileId]
, Left([FileFullPathName],Len([FileFullPathName])-CharIndex(',Reverse ([FileFullPathName]))+1) As [FolderName]
, Right([FileFullPathName],CharIndex(',Reverse([FileFullPathName]))-1) As [FileName]
,[FileFullPathName]
,[LoadDateTime]
FROM [dbo].[FilesInfo]
GO

Now the Output looks as follows..

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Thanks, TAMATAM ; Business Intelligence & Analytics Professional
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