Hi! Guys,
May be this question is little stupid but I want to clarify this.
Let suppose I have image data field in Sql server 2000 and I am uploading
an image of 10KB(thru asp.net application).
What would be the size for that table with image data field ?
Is it 10KB or less than 10KB or more than 10KB ?
Thanks
John
www.e-classifiedad.com
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.
View 2 Replies View RelatedHere is my task I am storing pdf's in sql server. I would like to retrieve the binary data from sql server and write the pdf content into an existing aspx page to the appropriate pageview section. What is the best way to handle this. The code works below but it loads a new browser with the content. I need it to appear in it's tabbed section in the original aspx file. Any assistance you can give me would be greatly appreciated.
Thanks Jerry
oSQLConn.Open()Dim myreader As SqlDataReader
myreader = myCommand.ExecuteReader
Response.Expires = 0
Response.Buffer = True
Response.Clear()
Do While (myreader.Read())
Response.ContentType = ("application/pdf")Response.BinaryWrite(myreader.Item("img_content"))
Loop
Hello,I'm having problems saving and then displaying binary data in sql server.I have a form that takes a file specified by the user and inserts this into sql server:protected void btnUploadFile_Click(object sender, EventArgs e) { if (theFile.PostedFile != null) { if (theFile.PostedFile.ContentLength > 0) { byte[] docBuffer = new byte[theFile.PostedFile.ContentLength]; Response.Write(theFile.PostedFile.ContentType.ToString()); if (docBuffer.Length > 0) { // save to db DbAccess dbAccess = new DbAccess(); // my helper function for all db access etc try { dbAccess.BuildCommand("Incentives_SaveDocument"); dbAccess.Parameters.Add("@docImage", SqlDbType.Image).Value = docBuffer; dbAccess.ExecuteNonQuery(); } catch (Exception ex) { Response.Write(ex.ToString()); } } } } }Stored proc:ALTER PROCEDURE Incentives_SaveDocument @docImage imageASSET NOCOUNT ONINSERT INTO Table1 (theData) VALUES (@docImage) RETURNThis appears to work fine. I store the binary data in a image column and if I query the db it shows the row as <Binary>.The problem I have is with retrieving the data and saving it to a file. The file saves OK but when I open it is contains lots of "squares" that I suppose are the binary - it doesn't show the text.The code for retrieving/displaying the doc is:protected void btnView_Click(object sender, EventArgs e) { DbAccess dbAccess = new DbAccess(); byte[] byteArray = null; try { dbAccess.BuildCommand("Incentives_RetrieveDocument"); dbAccess.Parameters.Add("@id", SqlDbType.Int).Value = 6; // id for the doc to return SqlDataReader reader1 = dbAccess.ReturnDataReader(); while (reader1.Read()) { if (reader1.HasRows) { byteArray = (byte[])reader1["theData"]; } } reader1.Close(); FileStream fs = new FileStream("file1", FileMode.CreateNew, FileAccess.Write); fs.Write(byteArray, 0, byteArray.Length); fs.Flush(); fs.Close(); FileInfo fileInfo = new FileInfo("file1"); HttpContext.Current.Response.Clear(); HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=" + fileInfo.Name); HttpContext.Current.Response.AddHeader("Content-Length", fileInfo.Length.ToString()); HttpContext.Current.Response.ContentType = "application/msword"; HttpContext.Current.Response.WriteFile(fileInfo.FullName); HttpContext.Current.Response.End(); } catch (Exception ex) { Response.Write(ex.ToString()); } finally { dbAccess.CloseDbConnection(); }The stored proc:ALTER PROCEDURE Incentives_RetrieveDocument @id intASSET NOCOUNT ONSELECT * FROM Table1 WHERE id = @id RETURNI would be grateful for any advice on this - its the first time I've worked with BLOB data.ThanksSi
View 2 Replies View RelatedHi Guys,
I've been strugling with this problem all morning today.
Basically I store images in SQL Server 2000 database and then whould like to show them with
<img src="viewImage.aspx?image_id=10" border=1>
My table structure is setup this way
TABLE [userImages] (
[imageFilename] [nvarchar] (128) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
[imageContentType] [nvarchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,
[imageFileSize] [bigint] NULL ,
[imageFileImage] [image] NULL )
and in viewImage.aspx I have:
if (dr.Read())
{
Response.ContentType = dr.GetString(dr.GetOrdinal("imageContentType"));
Response.BinaryWrite( (byte[]) dr["imageFileImage"] );
}
I have no prolems retrieving the data from DB. But the image does not display(in IE it shows a broken link image)
What's even more puzzling is I CAN display the same image from HDD like so:
FileStream fs = File.OpenRead("D:\my_image.png");
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
fs.Close();
Response.ContentType = "application/octet-stream";
Response.BinaryWrite(buffer);
Am I missing something very obvious. I tried playing around with different ContentType's same result.
In my case I am forced to store images in the DB.
I've seen other examples on the net and theirs work. Please help.
Sincerely,
Vlad Orlovsky
Hi All,
I am manually replicating parts of a SQL Server CE database (running windows mobile 5.0) to a centralized SQL Server 2000 database.
My program is throwing an exception whenever I try to insert an image data type into the 2000 server from the PDA. I am using parameterized queries.
Error is as follows:
[error]
System.Data.SqlClient.SqlConnection.OnError()
at
System.Data.SqlClient.SqlInternalConnection.OnError()
at
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning()
at
System.Data.SqlClient.TdsParser.Run()
at
System.Data.SqlClient.ExecuteReader()
at
System.Data.SqlClient.ExecuteNonQuery()
at
PDASync.Database.ExecuteIDRemote()
[/error]
The code for my ExecuteIDRemote method works fine for other queries. It also works if I remove the image column from the offending query.
Does anyone have any suggestions? Thanks.
This just happened today and I dont know why. I have a database on a SQL server 2005 database, that has a table called photos. It contains image data, but not the column says <Unable to read data>. But before that I get an error when I try to execute the table to retreive the data. The error is below. SQL Execution Error:Executed SQL statement: SELECT ID, AlbumID, Caption, BytesOriginal, BytesFull, BytesThumb FROM PhotosError Source: System.DataError Message: Invalid attempt to Read when reader is closed. This happens with SQL Server Management Studio, and Visual Studio 2005 when I try to access it. I tried two computers so its not that. Any help or insight would be appreciated.
View 2 Replies View RelatedHay 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
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
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.
Sql Server 2000
I am looking for bidirectional transactional replication using updatable subscribers (queued or immediate) . Is it possible to replicate the image data from the updatable subscribers to the publisher. I understood that the Image data can't be replicated to the publisher from the updatable subscriber. I am not using the WRITETEXT or UPDATETEXT. I am using just INSERT and UPDATE for image data type transactions.
Any thoughts on this is greatly appreciated.
Thanks in advance
Dear all,
we have tables with many image columns. We fill these image columns via ODBC and SQLPutData as described in MSDN etc (using SQL_LEN_DATA_AT_EXEC(...), calling SQLParamData and sending the data in chunks of 4096 bytes when receiving SQL_NEED_DATA).
The SQLPutData call fails under the following conditions with sqlstate 08S01
- The database resides on SQL Server 2000
- The driver is SQL Native Client
- The table consists e.g. of one Identity column (key column) and nine image columns
- The data to be inserted are nine blocks of data with the following byte size:
1: 6781262
2: 119454
3: 269
4: 7611
5: 120054
6: 269
7: 8172
8: 120054
9: 269
The content of the data does not matter, (it happens also if only zero bytes are written), nor does the data origin (file or memory).
All data blocks including no 7 are inserted. If the first chunk of data block 8 should be written with SQLPutData the function fails and the connection is broken. There are errors such as "broken pipe" or "I/O error" depending on the used network protocol.
If data no 7 consists of 8173 bytes instead of 8172 all works again.
(Changing the 4096 chunk size length does not help)
Has anybody encountered this or a similar phenomenon?
Thank you
Eartha
Hi,This is driving me nuts, I have a table that stores notes regarding anoperation in an IMAGE data type field in MS SQL Server 2000.I can read and write no problem using Access using the StrConv function andI can Update the field correctly in T-SQL using:DECLARE @ptrval varbinary(16)SELECT @ptrval = TEXTPTR(BITS_data)FROM mytable_BINARY WHERE ID = 'RB215'WRITETEXT OPERATION_BINARY.BITS @ptrval 'My notes for this operation'However, I just can not seem to be able to convert back to text theinformation once it is stored using T-SQL.My selects keep returning bin data.How to do this! Thanks for your help.SD
View 1 Replies View Related
The ERP manufacturer used an image data type to store large text data fields. I am trying to move these data types from one database to another database using either Sql Queries or MS Access. I can cast them as an 8000 char varchar to read them directly but have no luck importing into these image data fields.
Access and Crystal are not able to read these fields directly.
Any suggestions? Most information about these fields has to do with loading files but I am just moving data.
Thanks,
Ray
hi people
I have imported "blob" data from mysql to an ms-sql 2000 "Image" field, using ms- sql enterprise manager. However my c# image veiwer does not work on the imported blob data (it does work on data I add to ms-sql via my web application).
Is there any way I can check that the blob data creates a valid image? If anyone has any ideas of how I can debug the data coming out that would be great. Or perhaps someone can point me to somewhere I can get some help?
any pointers are much appreciated!
Greg
I have been asked to write a piece of code that will insert an image object into a database using a stored procedure and the Microsoft Enterprise Library. Has anyone done this before? Do you have any code examples about how to update a database with an image datatype that needs to be chunked, etc...
In this instance, I need to open up a word document and save the contents as an image in a database.
hi, i'm a student doing my final year project. during the user requirements stage, my client proposed storing all files (.doc, .jpg, .mp3) into the sql database. i found out that the way to do this is to write the files as binary data in order to store them in the database. my concern is will this data storage overload the database server? i read somewhere that the retrieval of data as binary data is the same as retrieving text. but the estimation of users is around 27,000.. if i'm not wrong, the sql database server should be MS SQL Server 2005, or at least 2003.
View 1 Replies View RelatedI have a field in my personal table that has image data type as Pic,my SQL code is :
SELECT Department.ID,Department.[Name],Department.CreatedDate,Department.[Pic] ,COUNT([Group].[Name])
FROM Department INNER JOIN [Group] ON Department.ID=[Group].DepartmentID
Group by Department.ID,Department.[Name],Department.CreatedDate,Department.[Pic]
This error occured :
Msg 306, Level 16, State 2, Line 1
The text, ntext, and image data types cannot be compared or sorted, except when using IS NULL or LIKE operator.
Please help me.
Thanks.
What save inside image data type field?
Thanks,mohsen
Hi,
I have a table with a column having image data type in it.I need to move four records from this table to another table in development box.Can any one suggest me how can i do this? I don't think insert into select * will insert image data type.Is there any way around?
thanks
Mohan
I have a ot of images in my hard disk and I want to put
these ina table in a column declared as an image datatype.
How do I do it?
After I am done with that, I want to select my images and should able to see the pictures.
Can any one help?
I know about the textptr function but the booksonline doesn't show mw how
to set my textptr to a specific location on my hard rive.
Any help is appreciated.
I need this because the customers do send the images of their proucts which should go into the database.
Thanks
I'm developing a website with SQL SERVER 2000 and IIS6 (beta).
I'm using ASP.NET webforms for my application.
I was wondering if anyone knows how to use the Image datatype for dynamically loading images/word docs/sound files
Can anyone provide info on how to insert and store a .jpeg in a database table?
Thanks,
Kellie
Hi,
I have a large table at a client site, about 4000 rows so that is fine but the problem is one of the columns are of image type and this has a lot of data in the table size is about 2.8 gig.
Whoever installed the server was up to no good - everything (logs, system and data files)is running on one disk which is mirrored (??? don't ask).
Indexes are on the right columns, and the server is a dual pentuim 3 700 with 2 gig of Ram so that is fine too.
The database is a CRM database (Maximizer) and when the application loads up it reads the entire table into its library (don't know why or how exactly yet) and as you can imagine this takes a long time about 4 minutes - which is too long.
My idea is to add two or more disks and get the logs on one of them then take the table with the image data and move it to one of the disks with the rest of the tables on the other disk - (The client can't afford or don't want to pay for a RAID system before you ask)
Can anyone shed some light on this whether it will do or do I rather need to go for a partitioned view over the disks.
What is the limits on TEXT IN ROW table option - will it be of any help?
Buying another server is unfortunatly not an option and archiving the older data also wont solve the problem as they do a lot of reports of the database.
Any suggestions or advice would very much be appreciated.
Regards
Jacques
Been pondering the idea of putting 43 - 56K Pdf documents into a SQL DB but everything I've read only goes as far as to explain how the data is stored or manipulated.
I need to establish whether there are real performance issues or gains that will be experienced by doing this.
If indeed, performance would be a big issue, would storing the files in a Folder on another drive outside the Database be all that much faster (Let windows handle the fetch and carry instead of SQL Server).
The plan at the moment is to store all the image data in a separate data file or multiple data files. Using partitioned views is also a consideration.
Number of records per day (pdf's) would be somewhere around a 1000.
Hi I have the following table and just wondered if theres an easy way of inserting test data with the image field not null?
Table: file
Fields: file_id(int), filename(varchar), data(image).
Any help would be great!
Cheers, Mark
pls. Help!
I am not getting that how to use the image datatype in sql server 2000
when i am inserting text to it and on retrieving it is showing hexadecimal string ...
I want to know all of your views on the usage of image datatype..
Thanks...
I would like to use bcp and transfer image data from MS-SQL Server 6.5 to MS SQL Server 2005.
1. Can I use bcp successfully? if so should I mention any option to copy the BLOB?
2. Is there any reliable method to move tables with BLOBs
Regards,
/ash
Hi,In my SQL Server 2000, I have a Table MyUser which has one colum PassWord,and the PassWord's datatype is Image. I'm wondering how can a password bean image.Thanks for help.Jason
View 1 Replies View RelatedHi,
I am storing my upoaded images in sql server. However, if the user does not upload an image, a broken link is shown in the page.
All that shows up in the DB field is <Binary>.
Can we set this field to a default value?
Is it possible to view this binary data.
I would like a default blank gif to be returned if no image is uploaded.
Regards,
JB
I seem to be getting very annoying behaviour from SQL Server and was wondering what the correct method should be...I want to store some binary data in the database and I want to use a stored procedure. I also want to pass some XML to the stored procedure where this XML contains the binary data. I will then use OPENXML to grab the binary data and stick in the table. In order to ensure the safe transmission of the binary through XML I Base64 encode it. Ok so far. The problem is that although OPENXML is supposed to assume that anything marked as Image/Binary will be Base64 encoded it then proceeds to Base64 encode it again and put that result into the database! So what am I missing, am I supposed use a CDATA section or something rather than Base64 encode my XML?
View 2 Replies View RelatedHi
when I store html file with image in image data type of database sqlserver, where will actual data store (content of html file, and file image which display on html file), in which folder
Can I help you
Hello everyone,
I'm running merge replication with several databases. So far everything worked fine, but now I tried to insert some new records and I get the message:
Server: Msg 7139, Level 16, State 1, Line 1
Length of text, ntext, or image data (73728) to be replicated exceeds configured maximum 65536.
The statement has been terminated.
Can anybody tell me how if I can change this max. value and how ?
Thanks a lot
Mike B.