问题
We are keeping images in Folder which can have images & sub folder & these sub folders can also have images & sub folders for example
c:\myImageFolder\image1.png //'myImageFolder' have image
c:\myImageFolder\Folder1\imagex.png // 'myImageFolder' have another folder inside which is 'Folder1'.
c:\myImageFolder\Folder1\ChildFolder1\imagen.png // 'myImageFolder' have 'Folder1' which have 'ChildFolder1' which have imagen.png
We need to know that how many images are in there over 1 MB, over 750KB and 500KB?
Some facts:
- We need to do it through SQL
- We are using SQL Server 2008
myImageFoldercontains more than thousands sub foldersmyImageFoldersize is nearly 5 GB
Thanks in advance for your valuable time & help. Note: I found the solution, you can find it here
回答1:
If security isn't a huge issue and you can enable xp_cmdshell on your sql instance, you can use the command shell directory listings to get the info. For example
Declare @Dir VARCHAR(256)
DECLARE @CMD VARCHAR(256)
SET @Dir = 'C:\myImageFolder\'
SET @CMD = 'DIR "'+@DIR+'" /A /S'
CREATE TABLE #tmp
(returnval NVARCHAR(500), rownum INT IDENTITY(1,1))
-- Populate Temp Table with the contents of the outfiles directory
INSERT #tmp EXEC master..xp_cmdshell @cmd
-- Delete rows with no file information
DELETE FROM #tmp WHERE returnval IS NULL
DELETE FROM #tmp WHERE ISNUMERIC(LEFT(returnval,1))=0 AND returnval NOT LIKE '%Directory of%'
DELETE FROM #tmp WHERE returnval LIKE '%<DIR> .%'
-- Separate the output into it's proper columns
SELECT
rownum,
(SELECT TOP 1 REPLACE(returnVal, ' Directory of ','') FROM #tmp t2 WHERE t2.rownum < t.rownum AND t2.returnval LIKE ' Directory of%' ORDER BY t2.rownum DESC) Directory,
CAST(LEFT(returnval,10) AS DATETIME) AS file_date,
CASE WHEN SUBSTRING(returnval,22,17) LIKE '%<DIR>%' THEN NULL ELSE CAST(REPLACE(SUBSTRING(returnval,22,17),',','') AS NUMERIC) END AS 'size(bytes)',
RIGHT(RTRIM([returnval]),LEN(RTRIM([returnval]))-39) AS [file_name],
CASE WHEN SUBSTRING(returnval,22,17) LIKE '%<DIR>%' THEN 'Directory' ELSE 'File' END AS [Type],
CASE WHEN SUBSTRING(returnval,22,17) LIKE '%<DIR>%' THEN NULL ELSE RIGHT(rtrim([returnval]), CHARINDEX('.',REVERSE(RTRIM([returnval])))) END AS extension
FROM #tmp t
WHERE returnval NOT LIKE '%Directory of%'
回答2:
You can create a c# function and add it to your SQL Server 2008 database and call the function from inside of SQL. Either a CLR Stored Procedure, or a CLR function would work fine for your scenario.
Creating CLR Stored Procedures - MSDN
Or, what you could also do (which makes more sense to me, but would take more work)... how does your program upload files? - Tap into that routine and also create an entry in the database that indicates its size and location.
回答3:
I think you may be able to use sp_OAGetProperty. Something along the lines of ...
DECLARE @OLEResult INT
DECLARE @FS INT
DECLARE @FileID INT
DECLARE @Size BIGINT
-- Create an instance of the file system object
EXEC @OLEResult = sp_OACreate 'Scripting.FileSystemObject', @FS OUT
EXEC @OLEResult = sp_OAMethod @FS, 'GetFile', @FileID OUT, 'C:\Filename'
EXEC @OLEResult = sp_OAGetProperty @FileID, 'Size', @Size OUT
--@Size now holds file size
You may need to use sp_configure to change the configuration option for 'Ole Automation Procedures'
Check out this link
回答4:
Check this solution:
ALTER PROCEDURE [dbo].[GetListOfFileWithSize]
(
@Dir VARCHAR(1000)
)
AS
---------------------------------------------------------------------------------------------
-- Variable decleration
---------------------------------------------------------------------------------------------
declare @curdir nvarchar(400)
declare @line varchar(400)
declare @command varchar(400)
declare @counter int
DECLARE @1MB DECIMAL
SET @1MB = 1024 * 1024
DECLARE @1KB DECIMAL
SET @1KB = 1024
---------------------------------------------------------------------------------------------
-- Temp tables creation
---------------------------------------------------------------------------------------------
CREATE TABLE #dirs (DIRID int identity(1,1), directory varchar(400))
CREATE TABLE #tempoutput (line varchar(400))
CREATE TABLE output (Directory varchar(400), FilePath VARCHAR(400), SizeInMB DECIMAL(13,2), SizeInKB DECIMAL(13,2))
CREATE TABLE #tempFilePaths (Files VARCHAR(500))
CREATE TABLE #tempFileInformation (FilePath VARCHAR(500), FileSize VARCHAR(100))
---------------------------------------------------------------------------------------------
-- Call xp_cmdshell
---------------------------------------------------------------------------------------------
SET @command = 'dir "'+ @Dir +'" /S/O/B/A:D'
INSERT INTO #dirs exec xp_cmdshell @command
INSERT INTO #dirs SELECT @Dir
SET @counter = (select count(*) from #dirs)
---------------------------------------------------------------------------------------------
-- Process the return data
---------------------------------------------------------------------------------------------
WHILE @Counter <> 0
BEGIN
DECLARE @filesize INT
SET @curdir = (SELECT directory FROM #dirs WHERE DIRID = @counter)
SET @command = 'dir "' + @curdir +'"'
------------------------------------------------------------------------------------------
-- Clear the table
DELETE FROM #tempFilePaths
INSERT INTO #tempFilePaths
EXEC MASTER..XP_CMDSHELL @command
--delete all directories
DELETE #tempFilePaths WHERE Files LIKE '%<dir>%'
--delete all informational messages
DELETE #tempFilePaths WHERE Files LIKE ' %'
--delete the null values
DELETE #tempFilePaths WHERE Files IS NULL
--get rid of dateinfo
UPDATE #tempFilePaths SET files =RIGHT(files,(LEN(files)-20))
--get rid of leading spaces
UPDATE #tempFilePaths SET files =LTRIM(files)
--split data into size and filename
----------------------------------------------------------
-- Clear the table
DELETE FROM #tempFileInformation;
-- Store the FileName & Size
INSERT INTO #tempFileInformation
SELECT
RIGHT(files,LEN(files) -PATINDEX('% %',files)) AS FilePath,
LEFT(files,PATINDEX('% %',files)) AS FileSize
FROM #tempFilePaths
--------------------------------
-- Remove the commas
UPDATE #tempFileInformation
SET FileSize = REPLACE(FileSize, ',','')
--------------------------------
-- Remove the white space
UPDATE #tempFileInformation
SET FileSize = REPLACE(FileSize, char(160) , '')
--------------------------------------------------------------
-- Store the results in the output table
--------------------------------------------------------------
INSERT INTO output--(FilePath, SizeInMB, SizeInKB)
SELECT
@curdir,
FilePath,
CAST(CAST(FileSize AS DECIMAL(13,2))/ @1MB AS DECIMAL(13,2)),
CAST(CAST(FileSize AS DECIMAL(13,2))/ @1KB AS DECIMAL(13,2))
FROM #tempFileInformation
--------------------------------------------------------------------------------------------
Set @counter = @counter -1
END
DELETE FROM OUTPUT WHERE Directory is null
----------------------------------------------
-- DROP temp tables
----------------------------------------------
DROP TABLE #Tempoutput
DROP TABLE #dirs
DROP TABLE #tempFilePaths
DROP TABLE #tempFileInformation
--DROP TABLE #tempfinal
SELECT * FROM OutPut
DROP TABLE output
And guys it works!!!
回答5:
Version 2.0 of perfect solution!!
-- =============================================
-- Author: Carlos Dominguez (krlosnando@gmail.com)
-- Create date: July 07th 2017
-- Description: Scan folders and files Size
-- Example: EXEC [dbo].[spScanFolder] 'C:\Users\Public'
-- =============================================
CREATE PROCEDURE [dbo].[spScanFolder]
(
@FolderToScan VARCHAR(1000)
)
AS
BEGIN
---------------------------------------------------------------------------------------------
-- Variable declaration
---------------------------------------------------------------------------------------------
DECLARE @CurrentDir VARCHAR(400)
DECLARE @Line VARCHAR(400)
DECLARE @Command VARCHAR(400)
DECLARE @Counter int
DECLARE @1MB DECIMAL
SET @1MB = 1024 * 1024
DECLARE @1KB DECIMAL
SET @1KB = 1024
---------------------------------------------------------------------------------------------
-- DROP temp tables
---------------------------------------------------------------------------------------------
IF OBJECT_ID(N'tempdb..#tableTempDirs') IS NOT NULL BEGIN DROP TABLE #tableTempDirs END
IF OBJECT_ID(N'tempdb..#tableTempOutput') IS NOT NULL BEGIN DROP TABLE #tableTempOutput END
IF OBJECT_ID(N'tempdb..#tableTempResult') IS NOT NULL BEGIN DROP TABLE #tableTempResult END
IF OBJECT_ID(N'tempdb..#tableTempFilePaths') IS NOT NULL BEGIN DROP TABLE #tableTempFilePaths END
IF OBJECT_ID(N'tempdb..#tableTempFileInfo') IS NOT NULL BEGIN DROP TABLE #tableTempFileInfo END
---------------------------------------------------------------------------------------------
-- Temp tables creation
---------------------------------------------------------------------------------------------
CREATE TABLE #tableTempDirs (DIRID int identity(1,1), directory varchar(400))
CREATE TABLE #tableTempOutput (line varchar(400))
CREATE TABLE #tableTempResult (Directory varchar(400), FilePath VARCHAR(400), SizeInMB DECIMAL(13,2), SizeInKB DECIMAL(13,2))
CREATE TABLE #tableTempFilePaths (Files VARCHAR(500))
CREATE TABLE #tableTempFileInfo (FilePath VARCHAR(500), FileSize VARCHAR(100))
---------------------------------------------------------------------------------------------
-- Call xp_cmdshell
---------------------------------------------------------------------------------------------
SET @Command = 'dir "'+ @FolderToScan +'" /S/O/B/A:D'
INSERT INTO #tableTempDirs EXEC xp_cmdshell @Command
INSERT INTO #tableTempDirs SELECT @FolderToScan
DELETE FROM #tableTempDirs WHERE Directory is null
---------------------------------------------------------------------------------------------
-- Remove text to extract file information from command result "05/27/2017 12:26 PM 5,208 rulog.txt"
---------------------------------------------------------------------------------------------
SET @Counter = (select count(*) from #tableTempDirs)
WHILE @Counter <> 0
BEGIN
DECLARE @filesize INT
SET @CurrentDir = (SELECT directory FROM #tableTempDirs WHERE DIRID = @Counter)
SET @Command = 'dir "' + @CurrentDir +'"'
-- Clear the table
TRUNCATE TABLE #tableTempFilePaths
-- Get files from current directory
INSERT INTO #tableTempFilePaths
EXEC MASTER..XP_CMDSHELL @Command
--delete all directories
DELETE #tableTempFilePaths WHERE Files LIKE '%<dir>%'
--delete all informational messages
DELETE #tableTempFilePaths WHERE Files LIKE ' %'
--delete the null values
DELETE #tableTempFilePaths WHERE Files IS NULL
--delete files without date "05/27/2017 12:26 PM 5,208 rulog.txt"
--Fix error: Invalid length parameter passed to the right function.
DELETE #tableTempFilePaths WHERE LEN(files) < 20
--get rid of dateinfo
UPDATE #tableTempFilePaths SET files = RIGHT(files,(LEN(files)-20))
--get rid of leading spaces
UPDATE #tableTempFilePaths SET files =LTRIM(files)
--split data into size and filename and clear the table
TRUNCATE TABLE #tableTempFileInfo;
-- Store the FileName & Size
INSERT INTO #tableTempFileInfo
SELECT
RIGHT(files,LEN(files) -PATINDEX('% %',files)) AS FilePath,
LEFT(files,PATINDEX('% %',files)) AS FileSize
FROM
#tableTempFilePaths
--Remove the commas
UPDATE #tableTempFileInfo
SET FileSize = REPLACE(FileSize, ',','')
--------------------------------------------------------------
-- Store the results in the output table
-- Fix Error: conveting varchar to decimal
--------------------------------------------------------------
INSERT INTO #tableTempResult--(FilePath, SizeInMB, SizeInKB)
SELECT
@CurrentDir,
FilePath,
CASE FileSize
WHEN 'File ' THEN 0
ELSE CAST(CAST(FileSize AS DECIMAL(13,2))/ @1MB AS DECIMAL(13,2))
END,
CASE FileSize
WHEN 'File ' THEN 0
ELSE CAST(CAST(FileSize AS DECIMAL(13,2))/ @1KB AS DECIMAL(13,2))
END
FROM
#tableTempFileInfo
Set @Counter = @Counter -1
END
-- Remove null directories
DELETE FROM #tableTempResult WHERE Directory is null
----------------------------------------------
-- Show result
----------------------------------------------
SELECT * FROM #tableTempResult
----------------------------------------------
-- DROP temp tables
----------------------------------------------
IF OBJECT_ID(N'tempdb..#tableTempDirs') IS NOT NULL BEGIN DROP TABLE #tableTempDirs END
IF OBJECT_ID(N'tempdb..#tableTempOutput') IS NOT NULL BEGIN DROP TABLE #tableTempOutput END
IF OBJECT_ID(N'tempdb..#tableTempResult') IS NOT NULL BEGIN DROP TABLE #tableTempResult END
IF OBJECT_ID(N'tempdb..#tableTempFilePaths') IS NOT NULL BEGIN DROP TABLE #tableTempFilePaths END
IF OBJECT_ID(N'tempdb..#tableTempFileInfo') IS NOT NULL BEGIN DROP TABLE #tableTempFileInfo END
END
来源：https://stackoverflow.com/questions/7952406/get-each-file-size-inside-a-folder-using-sql