Download content ie page like txt file

Question

Download content ie page like txt file

William-462471

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Points: 480
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February 11, 2008 at 5:02 am

#74037

Hi, I have problem, how can I download content ie page like txt file. Page is : http://www.cnb.cz/cs/financni_trhy/devizovy_trh/kurzy_devizoveho_trhu/denni_kurz.txt?
I need this page save like txt file on drive, e.g. c:/denni_kurz.txt
Thanks for help.

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Lowell SSC Guru Points: 323504 More actions · Answer 1

much easier to do that from an application.

from sql server 2000, it's difficult to do in TSQL because you must use an object with sp_oacreate to get the text of the web page, and you are limited to 4000 bytes at a time...so if the page is 25K, you need to get 7 "slices" of the web page, one at a time, to get it into sql server.

I did that for fun in a different thread here on SSC, but it required a separate program i wrote to download the web page selected.

In my case, I was building a "scraper", so it got a web page and put it in a table in SQL server.

In order to do this, you'll need to grab the dll from this project and put it in your path or .bin directory for SQL server: the source code, vb6 project, and compiled dll are all in this zip file:

http://www.stormrage.com/blogpix/WebReader.zip

[

this procedure does all the work:

CREATE FUNCTION dbo.GetWebPage (@webpage varchar(1000)='' )

RETURNS @webcontents table

(

rowid smallint IDENTITY(1,1), --Array index

pagetext varchar(4000) --Array element contents

)

AS

BEGIN

DECLARE @hr int,

@webreader int,

@Num4K int,

@i int,

@contents varchar(4000)

IF LTRIM(RTRIM(ISNULL(@webpage,''))) =''

SET @webpage = 'http://www.yahoo.com'

EXEC @hr = sp_OACreate 'WebReader.Reader', @webreader OUT

EXEC @hr = sp_OAMethod @webreader, 'GetWebPageContentsAsString',null,@webpage

EXEC @hr = sp_OAGetProperty @webreader, 'Num4KLengths', @Num4K OUT

SET @i = 1

WHILE @i <=@Num4K

BEGIN

EXEC @hr = sp_OAGetProperty @webreader, 'PageSlice', @contents OUT, @i

INSERT INTO @webcontents(pagetext) VALUES(@contents)

SET @i=@i + 1

End

EXEC @hr = sp_OADestroy @webreader

Return

End

select * from dbo.GetWebPage(default)

Lowell

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mrpolecat SSCertifiable Points: 6964 More actions · Answer 2

You can do it in an activex script in a DTS package like this:

Function Main()

Set socket = CreateObject("MSXML2.ServerXMLHTTP.4.0")

socket.setTimeouts 300000, 300000, 350000, 350000

socket.Open "GET", "http://www.cnb.cz/cs/financni_trhy/devizovy_trh/kurzy_devizoveho_trhu/denni_kurz.txt?", False

socket.send

Set fso = CreateObject("scripting.filesystemobject")

Set myfile = fso.createtextfile("c:\denni_kurz.txt", True)

myfile.write socket.responsetext

Main = DTSTaskExecResult_Success

End Function

William-462471 SSC-Addicted Points: 480 More actions · Answer 3

Thanks to all. I use version of mrpolecat, and that's works fine.

William-462471 SSC-Addicted Points: 480 More actions · Answer 4

Please I have one problem yet. I save txt file onto disk, but when I try read this txt file I will get error.

When I try DTS package and bulk insert with row terminator comma and column terminator TAB, i get error Unexpected end of file.

When I try stored procedure and bulk insert :

declare @SQL varchar(8000)

SET @SQL= 'BULK INSERT #WRK FROM ''c:\denni_kurz.txt' + ''' WITH (CODEPAGE = ''1250'' , FIELDTERMINATOR = ''|'',ROWTERMINATOR ='''') '

CREATE TABLE #WRK (TEXT_STRING text)

EXEC(@SQL)

SELECT * FROM #WRK

I get only first few rows, but not all.

When I try vb.net project with StreamReader, then I read all text.

Where is the problem ?

I don't see anything wrong in this text.

Thanks for help.

Jacob Luebbers SSCarpal Tunnel Points: 4834 More actions · Answer 5

Come on - we can't do all the work for you. You need to understand the format of your incoming data - first, the text file available currently at that URL is in UTF8 format, so you need to set your codepage to 65001. And I'm not sure why you would be trying a column seperator of TAB and rowterminator of comma when the data is pipe-delimited with standard CRLF row terminators...

Here's a really quick test using the text file available now at the URL - I've made some assumptions as to the column names as I can't read Czech:

-------------------------------------------------------

create table #Test

(Country nvarchar(256),

CurrencyName nvarchar(256),

Units int,

ISOCode char(3),

CurrentValue varchar(256))

bulk insert #Test

from 'c:\denni_kurz.txt'

with

(

FIELDTERMINATOR ='|',

ROWTERMINATOR ='',

CODEPAGE = '65001',

FIRSTROW = 3

)

select

*

from #Test

drop table #Test

-------------------------------------------------------

It imports fine for me. Note however I've used varchar for the CurrentValue (last column) as the amounts are presumably in European decimal style with commas as the decimal seperator. You'd need to do some further manipulation on that column to get it into decimal format - there may be a neat way of doing that with a proper format file.

Regards,

Jacob

sanji_kumar SSC Rookie Points: 40 More actions · Answer 6

The url I am accessing requires a user name and the password. How can I pass the user name and the password to down load the file from a url??

mrpolecat SSCertifiable Points: 6964 More actions · Answer 7

socket.Open "GET", "http://www.website.com/page.html", False, "username", "password"

JFinkster Newbie Points: 1 More actions · Answer 8

Hi Lowell.

Do you still have the file http://www.stormrage.com/blogpix/WebReader.zip available somewhere?

I did not find it on the stormrage website.

Thanks.