From 'image' To 'varbinary(max)'
Apr 1, 2008
Hi
I moved to SQL Server 2005 (from 2000) and noticed there is a better
variable to deal with binary arrays.
I hava a table that hold 9 columns of images (BLOB). each array has a
different size and can be larger than 4k.
I've changed the column data type from image to varbinary(max).
After the chnage, the size of the table grew from 22MB to 26MB.
Any idea why? I though the new variable should be better.
I have another table where there are 3 columns with binaries, the size
of the arrays there is much smaller and vary from 32bytes to 150bytes
long. when I changed the data type to varbinary the size of the table
shrunk by half!!
now I'm completely confused...
Gilad.
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Feb 23, 2008
Hi,
I want to restrict varbinary column for not to store more that 2mb image file in the database. How can i do that.
Thanks in Advance!
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May 5, 2008
what is the best way of comparing image/varbinary and nullable column in sql server?
this is what i do to find out the different in image column in 2 tables sharing the same structure:
Select *
From TblA s
Left Join TblB c On
s.Id = c.Id And Coalesce(Convert(VARBINARY(MAX), c.Image),'') <> Coalesce(Convert(VARBINARY(MAX), s.Image),'')
Where c.Id IS NULL
alternatively, i was thinking to compare the column with the size, but worry about the accuracy:
Select *
From TblA s
Left Join TblB c On
s.Id = c.Id And ISNULL(Datalength(c.Image),0) <> ISNULL(Datalength(s.Image),0) Where c.Id IS NULL
any suggestion/advise will be appreciated ~
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May 9, 2008
We used SSIS to move data from a table in SQL 2000 which had a column with the image datatype to a column in a table in SQL 2005 that has a datatype of varbinary(max). No errors were produced from the SSIS package.
There were a number of records where the DATALENGTH of the column with the image datatype was greater than 8000. Was the data truncated for these records?
This is probably a very elementary question, but I am not familiar with the application or the data.
Below is the source table in SQL 2000 and a select count(*) ...
CREATE TABLE [dbo].[LSCHANNELCUTDATA](
[UIDCHANNELCUT] [numeric](19, 0) NOT NULL,
[VALUECODES] [image] NULL,
...
selectcount(*)
from[LSCHANNELCUTDATA]
whereDATALENGTH ( [VALUECODES] )> 8000
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Oct 8, 2007
I have a database that I am using as an archive for emails and am storing them in varbinary(max) data types. The database works fine for inserts and retrieval but I cannot delete large sets of records ( > 30K) without it timing out. I assume this is because SQL server isn't simply releasing the handle to the blob but is instead doing a lot of work reclaiming the space.
Is there any flag I can set or approach I can use to resolve this issue?
I was considering moving the blobs into a seperate simple table and putting async triggers on the primary to delete the blobs, will this work?
Any ideas are appreciated. Besides the "store files in the file system" idea.
- Christopher.
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Apr 20, 2007
I am using the 3-tiered architecture design (presentation, business laws, and data acess layers). I am stuck on how to send the image the user selects in the upload file control to the BLL and then to the DAL because the DAL does all the inserts into the database. I would like to be able to check the file type in the BLL to make sure the file being uploaded is indeed a picture. Is there a way I can send the location of the file to the BLL, check the filetype, then upload the file and have the DAL insert the image into the database? I have seen examples where people use streams to upload the file directly from their presentation layer, but I would like to keep everything seperated in the three classes if possible. I also wasn't sure what variable type the image would be in the function in the BLL that receive the image from the PL. If there are any examples or tips anyone can give me that would be appreciated.
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Jun 27, 2007
Hay Friend's
Can u plese send me the way how to save image in sql server and display that images in datagrid or other control also like Image control or Image control Button?? Plese send the coding in C#.
Thank's
Amit
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Jul 12, 2007
hi all,
i have created a table with image field in it. Now i just want to store a jpeg file in it but not finding any way to do so.
how can i store any image ? what are the steps???????
thanx in advance
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Jul 6, 2006
Ok, the problem is that , i have a field called "Attach" in sql of type image, when selecting it , the field is getting data of type BYTE(). which am being unable to display them on an Image on the panel.
using the following vb.net code:
'Dim sel2 As String
'Dim myCom As SqlCommand
'Dim conn As New SqlConnection
'Dim drr As SqlDataReader
'Dim image As System.Drawing.Image
'sel2 = "select * from attach where att_desc = '" & DropDownList1.SelectedItem().Text & "' and doc_code = " & w_doc_code & " and subcode = " & w_doc_subcode & " and doc_num= " & w_doc_num & " "
'conn.ConnectionString = ("server=developer01;uid=sa;password=aims;database=DVPSOC;timeout=45")
'myCom = New SqlCommand(sel2, conn)
'conn.Open()
'drr = myCom.ExecuteReader()
'If drr.Read Then
' Me.ImageMap1.ImageUrl = drr.Item("attach")
'End If
'conn.Close()
Am getting an exeption on the following line Me.ImageMap1.ImageUrl = drr.Item("attach")
saying: Conversion from type 'Byte()' to type 'String' is not valid.
knowing that i tried converting using ToString but it's not getting any output then.
thanks for your help.
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Feb 13, 2007
I have learned lots of informative thing from your forums. I have little problem regarding “Display image from SQL Server on ASP.NET� I have done it and image display on my page from SQL Server. I have cleared you here I have adopt two different methods which are following for displaying picture.
1.Response.BinaryWrite(rd("picture"))
2.image.Save(Response.OutputStream, ImageFormat.Jpeg)
but in both above methods I have faced little problem when image display on my page all other information can not display and I also want to display picture on my specific location on the page. My second question is can use any web control like “Image1� to display image from SQL Server where my pictures are stored.
Hope you will help me.
Thanks and regards
Aftab Abbasi
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Mar 7, 2006
hi,i have inserted the image present in mydocuments using alter commandcreate table aa(a int, d image)insert into aa values (1,'F:prudhviaba 002.jpg')when i doselect * from aai am getting the result in the column d as0x463A5C707275646876695C70727564687669203030322E6A 7067how i can i view the image?pls clarify my doubtsatish
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Jan 30, 2007
In my asp.net application I have a local report with an image control in thedetail row of the table and the Value attribute set as="File://" & Fields!FQPhotoFileName.ValueThe first row in the table always shows the wrong image and it's always thesame wrong image. The problem is there even when I change the sort order orthe criteria for the underlying dataset. For example, I ran a small testthat populated the dataset with 2 rows and 2 images. When I sort by anycolumn (e.g. ID) in ascending ascending order the ID=1 row (the 1st row)shows the wrong image and the ID=2 row shows the correct image. When I rerunthe report sorting in descending order the ID=2 row (which is now the 1strow) shows the wrong image and the ID=1 shows the correct image.Any suggestions?
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Aug 17, 2007
Hi,
I have a website and i am uploading the gif image to the database. i have used varchar(500) as the datatype and i am saving the file in the webserver so the path to it c:intepub....a.gif
my upload table has the folliwing feilds
UploadId Int Identity, Description, FileName, DiskPath varchar(500), weblocation varchar(500). I have a main sproc for the report where i am doing a inner join with other table to get the path of the gif..
So my question is how can i get a picture to show up on the report. .
What kinda datatype the gif file should be stored in the database? If it is stored as a varchar how can i access it and what is best way to reference that particular.
any help will appreciated....
Regards
Karen
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Sep 20, 2006
I have inherited a VS 2005 database with a table that has a column of type IMAGE. I need to change the image for one of the rows in the table. I have the new image in a *.PNG file on my C: drive. What is the correct method for inserting this file into the IMAGE column.
Many thanks!
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Jun 30, 2006
Does anybody can expain me what is the reason for varbinary accept the value 0 for length? We can insert files with >0 length in it?????
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Jan 22, 2007
Hi,
We have a large database table with an IMAGE field holding documents of < 1MB size.
Over time this table has become quite large and operations on it have become slow.
My question is, would changing from IMAGE to varbinary(max) make the binary storage more efficient thereby making the table operations faster.
Also, would the table size be smaller with varbinary(max)?
Thanks
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Sep 16, 2004
Can anyone tell me what varbinary casts to ?? can I do this int[] temp=(int)DataReader["varbinaryColumn"]. Or is byte[] temp the appropiate protocol.
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Dec 12, 2006
hello.
i want to do something with this database but i don't know how:
there is this column that is varbinary and i want to replace just one part of its content, for example:
this is its content:
'CC08FF806785'
and i just want to change the FF for AA.
i tried using query analyzer with this:
update table
set column=replace(column,'FF','AA')
but it says something like conversion isn't allowed from data varchar to varbinary and that i should use the function "convert" but i don't know how to use that!
does anyone know how to do that?
thanks!
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Feb 28, 2007
I want to store JPG files in my table... So far I know varbinary datatype can be used to store large object types like images,documents etc.How do I add records for this data type in table
Thanks
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Apr 30, 2008
I have table in SQL2005 with 4 encrypted columns, and reading data is OK, but problem is inserting data...
I tryed using bulk insert but no results...
this is the row that I should insert
1 5 FT 2005-09-10 00:00:00 0x4200690072006D0069006E006700680061006D0020004300690074007900 0x43006800610072006C0074006F006E0020004100740068006C006500740069006300 0x30002D0031002000200020002000200020002000 0x30002D0031002000200020002000200020002000 0x45004E004700200050005200 0x32003000300035002F003200300030003600
its tab delimited...and 0x4200690072006D0069006E006700680061006D0020004300690074007900 is value for one field..hoe to send that value to stored proc?
when I try using code I get all defferent errors...examples on net are one where you convert picture into blob, like this
Dim fs As New FileStream ("c:some.bmp", FileMode.OpenOrCreate, FileAccess.Read)
Dim iLen As Integer = CInt(fs.Length)
Dim bBLOBStorage(iLen) As Byte
fs.Read(bBLOBStorage, 0, iLen)
fs.Close()bBLOBStorage is parameter for stored proc...but I have different situation...my blobs are all in one file
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Aug 10, 2007
Hello,
Would you please be kind to answer my question !
I have developed an ASP.NET Web application using SQL Server Express 2005 in my local PC where I have used VarBinary(MAX) for an image data storage. It is working fine in my computer. Now, I have configured my SQL Server 2005 in my production server using MyLittleAdmin, I found that, I can not set the value MAX for VarBinary, so I am forced to enter the value of varBinary = 8000. Now, When I insert image to this field more than 8KB, I get the following message,
"String or binary data would be truncated."
So, what does it mean, Is it not really possible to store image or file data in VarBinary which is more than 8KB ? if yes, then how can I configure my table for that using MyLittleAdmin ?
Regards
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Jul 17, 2007
I have been instructed to setup a database that will allow the storing of files in binary format. I have looked at using the varbinary(max) data type on a column to store the information. I am not sure based on books online how much information this can store. I have files that could be as large as 5-10 GB in size. Will SQL 2005 support storing these in binary format with that data type?
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Apr 2, 2008
If I have a Varbinary(MAX) column and I want to update all of it what will give me the best performance.
Calling
Update Table
Set Data = @data
or calling this multiple times
Update Table
Set Data .Write(@data, @offset, @length)
Alan
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Jun 23, 2005
I have a password field which is of varbinary. Since its a varbinary I
cannot see the password in the database I only see hexadecimal values.
Now my question is that how can I convert those hexadecimal values to
string or varchar so I can read the password.
any ideas ??
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May 31, 2002
I am trying to convert Varbinary to Char it keeps returning this ...
--------------------------------------------------
´å
(1 row(s) affected)
Here is the code that I am using....
declare @name varbinary(50)
set @name =0x12b4e5
SELECT Convert(char(50),@name)
Can someone please help! ~Dana
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Dec 31, 2013
I need to run a replace on a varbinary field but I am unsure how. I have tried mulitple different methods and to no avail. I am stumped.
I have attached a zip folder that contains a spreadsheet that shows what I am trying to do. In the first tab it shows the SQL command I use to call the field I want to change. In this case it's the Content field and I am calling it using the content_key. As you can tell the content is stored as varbinary. In the second sheet, It shows this varbinary being converted to varchar(max) and it shows what the actual text says.
The table that this information is stored is is called digitalassetcontent
I need to remove the
Code:
<STYLE>H1{font-weight:bold}H1{font-size: 14pt}OL</STYLE><H1>Product Description</H1>
That is in front of the actual product description.
Somehow I need to run this command:
Code:
Update digitalassetcontent
set content = replace(CAST(content as varchar(max)), '<STYLE>H1{font-weight:bold}H1{font-size: 14pt}OL</STYLE><H1>Product Description</H1>','')
Where CAST(content as varchar(max)) like '<STYLE>H1{font-weight:bold}H1{font-size: 14pt}OL</STYLE><H1>Product Description</H1>%' AND content_key = 'desc214974236480438500781058983745755010'
This is the error message I get when running this code: Implicit conversion from data type varchar(max) to varbinary(max) is not allowed. Use the CONVERT function to run this query.
On the varbinary field. How do I do this?
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Feb 17, 2004
Is there something else begger than that ?? as to be in binary !! for my image..
thanx.. because 8000 is not big enought..
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Jun 6, 2008
Hello,
I am trying to create a statement that will update many rows in a table with images, stored as varbinary(max), into a new column.
The path/file information is all stored in another table, but I can't find a way to update more than 1 at a time. Here is the statement that works for 1 row at a time:
update tblphotos set photo = (select
BulkColumn from
Openrowset( Bulk '\**servername**PropsImagesDon Giovanni 2002PropsHorses Guts 2.jpg', Single_Blob) as photo
)
where photoseq = 27
but if I try to do something like this:
CREATE TABLE #temp (
photoSeq int,
photoLoc varchar(255),
photo varbinary(max)
)
INSERT #temp
select p.photoseq, f.fldlocation + p.photophyloc as files,
(select
BulkColumn from
Openrowset( Bulk f.fldlocation + p.photophyloc, Single_Blob) as photo
)
FROM txprops t
join tblfolders f on t.fldlocation = f.fldseq
join tblphotos p on p.photopropseq = t.propseq
begin tran
update a set photo = b.photo
from tblphotos a
join #temp b on a.photoseq = b.photoseq
where a.photoseq = b.photoseq
select * from tblphotos order by photophyloc
commit tran
drop table #temp
I get an error: Incorrect syntax near 'f'.
I think this is because I can only put a path in beside BULK.
I have investigated BULK and bcp commands, but cannot find anything to satisfy this. I tried the DTS package route, but am not getting very far.
Any suggestions? Is DTS the solution for me?
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May 30, 2014
I'm an asp.net developer and I inherited an application that stores all the documents (video,pdf,txt) in a varbinary(max) field. how to do this without stressing the server? There are about 100000 files stored in the DB.
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Jul 20, 2005
What is the documented and known behavior of inserting hex constants into abinary/varbinary column from a client to a server which have different codepages? Will any code page / character set conversion take place?eg: insert into t1 values ('AA') or insert into t1 values(x'AA')ThanksAakash
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Nov 6, 2006
It would be nice if SQL Server Everywhere could support NVARCHAR(MAX) and VARBINARY(MAX), even if they would just be alias' for NTEXT and IMAGE. This would somewhat simplify the interoperability with SQL Server 2005 (i.e. no need to have different scripts for each database type).
Gerrit
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Apr 3, 2007
Hi everyone,
We're trying to migrate a varchar field from Sql2k to varbinary in a sql25k through a dtsx package. We get an error which tell us: "data will be lost".
Does anyone have any idea about that?
Thanks for your time and inputs,
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Apr 21, 2008
Hello,
I'm trying to insert a string expression into a varbinary field. I've tried it several ways, but the data does not seem to get inserted.
I map DT_STR field ("T") with varbinary field in destination table and the package executes properly, but when I see the data that it has been loaded I only see empty values (0x).
I have also tried other approaches, like converting to DT_BYTES during SSIS flow, but I always get the same result.
Any idea of how to achieve this?
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