Binary Images Within A Database
Dec 31, 2007
Hello folks,
I am going to try to explain this as best I can. First off I have a single database within SQL 2005 and the table within the database has a field for binary image data. Currently this database has about 4,000 image records.
What I would like to do is recompress each of the images with new compression software called Déjà vu. What needs to happen in my mind is, pull the current binary data into the compression software, compress the image, then upload the binary data back into the same record as a batch command.
My question is can I do something like that via command line? Or is this something that will require rebuilding the entire database from the ground up? I like having the data all in one database for ease of
maintenance and intergration with other databases I am working with, so I dont want to just link the images.
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Oct 29, 2015
I am trying to backup and restore a 20GB SQL database from a SQL Server 2012 to another SQL Server 2014, but I have come across the following issues:
1) The developers [against best practice] have stored multiple images in fields within the database as binary code.
This therefore exceeds the 65532 character limit in some fields, so even though the images do show [based upon the data saved within this field], I cannot find the data in the field beyond this 65532 limit, within SQL Server.
How can I export / locate this data after the 65532 character limit?
2) When I have attempted to restore the database I am getting this error message:
Restore of database 'zapkam' failed. (Microsoft.SqlServer.Management.RelationalEngineTa sks)
Additional information:
System.Data.SqlClient.SqlError: RESTORE detected an error on page (1:1592996) in database "zapkam" as read from the backup set. (Microsoft.SqlServer.SmoExtended)
I have managed to restore two other smaller databases using the same technique, but am wondering if it's an issue with the database itself.
3) I have uploaded this database to the new server using FileZilla FTP Client, but it has cut out, painfully at 80% + 90% on a couple of occasions.
Is there a better solution for uploading these big files that I could possibly use? For example, uploading table by table or similar...
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Apr 3, 2006
I have a web application that I am rebuilding. I have many picture files that want to take off the file system and move into SQL as a blob. I will create an index of uids against the file names but need a good way to bulk add the files to the database... any hints on code or tools would be a great help.
Thanks
Bill
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Feb 25, 2015
I want to store Images as binary data in SQL table and compare it each time with a image file I am getting. I've tried below approach but getting error:
DROP TABLE #BLOBTest
CREATE TABLE #BLOBTest
(
TestID int IDENTITY(1,1),
BLOBName varChar(50),
BLOBData varBinary(MAX)
);
[Code] ....
Error: Msg 4861, Level 16, State 1, Line 10
Cannot bulk load because the file "C:Files12656.jpg" could not be opened. Operating system error code 3(failed to retrieve text for this error. Reason: 15105).
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Jul 11, 2007
I am trying to produce a matrix (crosstab) report in SQL Server 2005 Reporting Services Report Designer, where the column headers contain a binary data type storing a png image.
By just simply using the report wizard and assigning the binary (image) data value to the column headers, and then previewing the report, I get following error:
An error occurred during local report processing.An error has occurred during report processing.The Group expression used in grouping 'matrix1_COMPETITOR_EMBLEM' returned a data type that is not valid.
Is there any way to include binary data types, or images per se from the database into a matrix or even table item in a report ?
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May 23, 2003
I am having a problem with MMSQL BLOB with VB, Sorry to say I am new in Programming using VB 6 and MSSQL and I have never touch BLOB in my live.
I just wish anyone could give me any ideal, like, white pages, or manual on how do I insert BLOB data (Images) to MSSQL 2000 database using VB 6. I need to know exspecially the VB Code and the SQL Portion if you have a store procedure code for that it will be nice.
:confused:
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Feb 9, 2007
The URL address is for example http://backup/pics/19980.jpg
On the report when I right click on an image the URL is http://localhost/reportserver
I do not understand what is going on. Please help.
Many thanks,
Nic
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May 22, 2014
Server is SQL 2000
I have a table with 10 rows with a varbinary column
I wish to concatenate all the binary column into a single binary column and then write that to another table within the database. This application splits a binary file (Word or PDF document) into multiple segments (this is Column2 as below)
example as follows
TableA
Column1 Column2 Column3
aaa 001 <some binary value>
aaa 002 <some binary value>
aaa 003 <some binary value>
aaa 004 <some binary value>
aaa 005 <some binary value>
desired results in TableB
Column1 Column2
aaa <concatenated value of above binary columns>
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Jun 10, 2008
Hi.
I've been traling the forum and the internet for a striaghtr forward solution on this.
I'm trying to do what loads of people have already achieved: retrive images from an SQL database.
I have successfully uploaded inages to an "iamges" table, storing the image as SQL type "image", also storing size, type, description, name etc.
I want to be able to read one or more of these images (and other data) back from the table.
I'm using C#, ASP NET 2.0, SQL,
Any examples I've found needed a lot of tweaking, and for some reason or other didn't work!
Please don;t just pose yet another URL to an example - I've probably tried it and failed already.
I don't mind if I display the images in a GridView or just within an aspx page.
Ideally I'd be able to dispaly a few images on a page.
I know how to read and display the rest of the data in the "images" table.
Can anyone help please?
Do you need more info?
Thanks in advance,
Garrett
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Oct 13, 2005
Hi,Recently I was asked to insert images into the database as a part of my module,can someone help me out on this, How can I insert images and retrieve the same from databaseSandhya
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Feb 26, 2006
I want to store IMAGE into Database So can any one tell me what's the command for that ?
like my image name is hello.jsp
command means the query like ( Select * from tableNAme )
Like thins pl help me & tell me What datatype should i use for that ?
Thaks for your help in advance
Have a Good Day
Harsh
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Sep 22, 2004
hello ... i have a project this semester and i had to study is storing images in a database ( using Microsoft Access ) is good or bad ? so any one could tell me the advantages and the disadvantages please ...
thanks
bye
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Oct 6, 2005
An odd question from me, I know, but this time, I assure you a twist.
I have a group that wants to store images in either a database or a file share, in order to make a certain website able to run on a load balanced web farm. These images are around 1KB each in size, and have a lifespan of exactly one use (think of graphs). I went a-googling, and found no shortage of articles that say "don't do it, but here's how you can do it", but I did not find any real hard statements as to why to not do it. Needless to say, this is hurting the case for not putting these images in the database. I have found an article that says images over 8KB will have worse performance, but I can not use that factoid here. For the moment, I have the developers leaning toward the fileshare, because they will be writing transaction logs all day, which will be more work than the fileshare needs to do....I think. The best I can do, is cut the text/image datatype overhead, and have them create the table as varbinary(2000), but even then, I don't like the look of the idea.
Anyone out there have good articles/whitepapers that detail the differences between writing single-use images to a fileshare vs. a SQL database? <baiting=blatant>Failing that, do any of the Microsoft development team have an opinion?</baiting>
Alternatively, what is the general opinion of keeping session state information in a database (because I bet that will be my next battle). I see .NET includes a session state server, but not being a programmer, I can not create an opbjective test.
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May 30, 2008
Hia,
We have a simple table which we need to store logo's for a website. The table looks like this:
CLIENTLOGO (Tablename)
id (Bigint) (PK) - NOT NULL
StoredImage (Image) - NOT NULL
ImageSize (Integer) - NULL
Im not an expert on sql sorry!
I have two problems,
1. I need to upload some logo's (they are gif's if thats important)
2. I need to store the image size
I don't have a clue how to do 2 but ive tried the following for 1 but it doesnt seem to work
Insert into CLIENTLOGO (id, storedImageTablename)
Values (1, 'c:ClientLogo1.gif')
Can somebody help, im really confused about this one
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May 8, 2006
hi everybody,can anybody help me out by telling me how could I store images in a database, and how to insert new images at run time to a database and thanks
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May 7, 2015
I'm using a bit-wise comparison to effectively store multiple values in one column. However once the number of values increases it starts to become too big for a int data type.you also cannot perform a bitwise & on two binary datatypes. Is there a better way to store the binary data rather than int or binary?
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Jul 10, 2006
Hi,
I want to view the images that are stored in a sql database. I am using VS2005. When I open server explorer and drill down to the dbase tables and the click on the show table data option the table is displayed in a new window.
when I open a table that stores images only a tag saying that the cell contains binary data is displayed. There doesn't seem to be any way to display the actual image and therefore edit the image. I can manipulate textual data directly in the database table...how do I edit graphics?
Thanks!
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Jan 14, 2007
Hello All,
My question is how to store images in a database table (in SQL Server), and how to retrieve them?...
Thanks,
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May 9, 2007
hi everyone,I'm currently developing a website and have a lot of images to use there(obviously :P), until now I have in some tables in my sql server db where exists a column which stores the path to: 'image folder + filename'And my question is: what are the advantages of using binary images in database instead of this approach to the problem, i.e., having images stored in a server folder.Thanks in advance.
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Mar 22, 2008
I have a form that inserts text and also allows the user to upload 3 images. I have the text part working, but can't figure out how to get the images uploaded. Here is the form. I just inserted the 3 upload controls in the form and in the datasource to show what I am trying to do. If anybody can help me I appreciate it. 1 <h3><br />Add Listing</h3><hr />
2 <div style="margin:auto;">
3 <table align="center" >
4 <tr>
5 <td align="right">
6 Address:</td>
7 <td>
8 <asp:TextBox ID="TbAddress" runat="server" MaxLength="62" Width="250px"></asp:TextBox> </td>
9 </tr>
10 <tr>
11 <td align="right">
12 City:</td>
13 <td align="left">
14 <asp:TextBox ID="TbCity" runat="server" MaxLength="62" Width="250px"></asp:TextBox></td>
15 </tr>
16 <tr>
17 <td align="right">
18 State:</td>
19 <td align="left">
20 <asp:DropDownList ID="DdState" runat="server">
21 </asp:DropDownList>
22 </td>
23 </tr>
24 <tr>
25 <td align="right">
26 Zip Code:</td>
27 <td align="left">
28 <asp:TextBox ID="TbZipCode" MaxLength="15" Width="75px" runat="server"></asp:TextBox>
29 </td>
30 </tr>
31
32 <tr>
33 <td align="right">
34 Listing Price:</td>
35 <td align="left">
36 <asp:TextBox ID="TbListingPrice" runat="server" MaxLength="30" Width="125px"></asp:TextBox></td>
37 </tr>
38 <tr>
39 <td align="right">
40 Taxes/Half:</td>
41 <td align="left">
42 <asp:TextBox ID="TbTaxes" runat="server" MaxLength="30" Width="125px"></asp:TextBox></td>
43 </tr>
44 <tr>
45 <td align="right">
46 Subdivision:</td>
47 <td align="left">
48 <asp:TextBox ID="TbSubdivision" runat="server" MaxLength="60" Width="225px"></asp:TextBox></td>
49 </tr>
50 <tr>
51 <td align="right">
52 County:</td>
53 <td align="left">
54 <asp:TextBox ID="TbCounty" runat="server" MaxLength="60" Width="225px"></asp:TextBox></td>
55 </tr>
56 <tr>
57 <td align="right">
58 School District:</td>
59 <td align="left">
60 <asp:TextBox ID="TbSchoolDistrict" runat="server" MaxLength="60" Width="225px"></asp:TextBox></td>
61 </tr>
62 <tr>
63 <td align="right">
64 Bedrooms:</td>
65 <td align="left">
66 <asp:DropDownList ID="DdBedrooms" runat="server">
67 </asp:DropDownList>
68 </td>
69 </tr>
70 <tr>
71 <td align="right">
72 Bathrooms:</td>
73 <td align="left">
74 <asp:DropDownList ID="DdBathrooms" runat="server">
75 </asp:DropDownList>
76 </td>
77 </tr>
78 <tr>
79 <td align="right">
80 Living Space:</td>
81 <td align="left">
82 <asp:TextBox ID="TbLivingSpace" runat="server" MaxLength="30" Width="125px"></asp:TextBox></td>
83 </tr>
84 <tr>
85 <td align="right">
86 Stories:</td>
87 <td align="left">
88 <asp:DropDownList ID="DdStories" runat="server">
89 </asp:DropDownList>
90 </td>
91 </tr>
92 <tr>
93 <td align="right">
94 Building Style:</td>
95 <td align="left">
96 <asp:TextBox ID="TbBuildingStyle" runat="server" MaxLength="60" Width="225px"></asp:TextBox></td>
97 </tr>
98 <tr>
99 <td align="right">
100 Year Built:</td>
101 <td align="left">
102 <asp:TextBox ID="TbYearBuilt" runat="server" MaxLength="30" Width="125px"></asp:TextBox></td>
103 </tr>
104 <tr>
105 <td align="right">
106 Bastment:</td>
107 <td align="left">
108 <asp:DropDownList ID="DdBasement" runat="server">
109 </asp:DropDownList>
110 </td>
111 </tr>
112 <tr>
113 <td align="right">
114 Heating:</td>
115 <td align="left">
116 <asp:DropDownList ID="DdHeating" runat="server">
117 </asp:DropDownList>
118 </td>
119 </tr>
120 <tr>
121 <td align="right">
122 Cooling:</td>
123 <td align="left">
124 <asp:DropDownList ID="DdCooling" runat="server">
125 </asp:DropDownList>
126 </td>
127 </tr>
128 <tr>
129 <td align="right">
130 Image 1:</td>
131 <td align="left">
132
133 <asp:FileUpload ID="FileUpload1" runat="server" />
134 </td>
135 </tr>
136 <tr>
137 <td align="right">
138 Image 2:</td>
139 <td align="left">
140 <asp:FileUpload ID="FileUpload2" runat="server" />
141 </td>
142 </tr>
143 <tr>
144 <td align="right">
145 Image 3:</td>
146 <td align="left">
147 <asp:FileUpload ID="FileUpload3" runat="server" />
148 </td>
149 </tr>
150 <tr>
151 <td>
152 </td>
153 <td>
154 </td>
155 </tr>
156 <tr>
157 <td align="right">
158 <asp:Button ID="Button1" runat="server" Text="Save" />
159 </td>
160 <td>
161 </td>
162 </tr>
163
164
165 </table>
166
167 </div>
168
169
170 <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:treesConnectionString %>"
171 InsertCommand="INSERT INTO SueHorvath(Address, City, State, ZipCode, ListPrice, Taxes, Subdivision, County, SchoolDistrict, Bedrooms, Bathrooms, LivingSpace, Stories, BuildingStyle, YearBuilt, Basement, Heating, Cooling, Image1, Image2, Image3) VALUES (@Address, @City, @State, @ZipCode, @ListPrice, @Taxes, @Subdivision, @County, @SchoolDistrict, @Bedrooms, @Bathrooms, @LivingSpace, @Stories, @BuildingStyle, @YearBuilt, @Basement, @Heating, @Cooling, @Image1, @Image2, @Image3)" >
172 <InsertParameters>
173 <asp:ControlParameter Name="Address" Type="String"
174 ControlID="TbAddress" />
175 <asp:ControlParameter Name="City" Type="String"
176 ControlID="TbCity" />
177 <asp:ControlParameter Name="State" Type="String"
178 ControlID="DdState" />
179 <asp:ControlParameter Name="ZipCode" Type="String"
180 ControlID="TbZipCode" />
181 <asp:ControlParameter Name="ListPrice" Type="String"
182 ControlID="TbListingPrice" />
183 <asp:ControlParameter Name="Taxes" Type="String"
184 ControlID="TbTaxes" />
185 <asp:ControlParameter Name="Subdivision" Type="String"
186 ControlID="TbSubdivision" />
187 <asp:ControlParameter Name="County" Type="String"
188 ControlID="TbCounty" />
189 <asp:ControlParameter Name="SchoolDistrict" Type="String"
190 ControlID="TbSchoolDistrict" />
191 <asp:ControlParameter Name="Bedrooms" Type="String"
192 ControlID="DdBedrooms" />
193 <asp:ControlParameter Name="Bathrooms" Type="String"
194 ControlID="DdBedrooms" />
195 <asp:ControlParameter Name="LivingSpace" Type="String"
196 ControlID="TbLivingSpace" />
197 <asp:ControlParameter Name="Stories" Type="String"
198 ControlID="DdStories" />
199 <asp:ControlParameter Name="BuildingStyle" Type="String"
200 ControlID="TbBuildingStyle" />
201 <asp:ControlParameter Name="YearBuilt" Type="String"
202 ControlID="TbYearBuilt" />
203 <asp:ControlParameter Name="Basement" Type="String"
204 ControlID="DdBasement" />
205 <asp:ControlParameter Name="Heating" Type="String"
206 ControlID="DdHeating" />
207 <asp:ControlParameter Name="Cooling" Type="String"
208 ControlID="DdCooling" />
209
210 <asp:ControlParameter Name="FileUpload1" Type="String"
211 ControlID="FileUpload1" />
212 <asp:ControlParameter Name="FileUpload2" Type="String"
213 ControlID="FileUpload2" />
214 <asp:ControlParameter Name="FileUpload3" Type="String"
215 ControlID="FileUpload3" />
216
217
218 </InsertParameters>
219
220 </asp:SqlDataSource>
And here is the code behind 1
2 Partial Class mylistings
3 Inherits System.Web.UI.Page
4 Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
5
6 SqlDataSource1.Insert()
7 TbAddress.Text = ""
8 TbCity.Text = ""
9 DdState.Text = ""
10 TbZipCode.Text = ""
11 TbListingPrice.Text = ""
12 TbTaxes.Text = ""
13 TbSubdivision.Text = ""
14 TbCounty.Text = ""
15 TbSchoolDistrict.Text = ""
16 DdBedrooms.Text = ""
17 DdBathrooms.Text = ""
18 TbLivingSpace.Text = ""
19 DdStories.Text = ""
20 TbBuildingStyle.Text = ""
21 TbYearBuilt.Text = ""
22 DdBasement.Text = ""
23 DdHeating.Text = ""
24 DdCooling.Text = ""
25
26
27
28
29 Response.Redirect(Request.Url.ToString(), False) ' will include the querystring
30 End Sub
31 End Class
32
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Mar 23, 2008
hi,
i would like to store images in my database and retirve them aswell. i have looked at examples on the net but i am finding it hard to follow and undertsand them, can anyone please give me adivse on how i can do this. i have alrady created my table in my database which has 4 fields pictureID, pictureContent, pictureType and pictureSize but i dont know where to go on from here. i want to do it in vb aswell.
please any help and advise would be much appreciated as i am stuck,
thank you
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Mar 26, 2008
i am using sql server,asp.net and C# language.I am able to upload data into the database but couldnt retrieve it from the database.i am using the following code to upload image into the database.kindly help.
SqlConnection connection = null; try { FileUpload img = (FileUpload)imgUpload; Byte[] imgByte = null; if (img.HasFile && img.PostedFile != null) { HttpPostedFile File = imgUpload.PostedFile; imgByte = new Byte[File.ContentLength]; File.InputStream.Read(imgByte, 0, File.ContentLength); } string conn = connection establishing string; connection = new SqlConnection(conn); connection.Open(); string sql = "insert into imagetable values(@enm, @eimg) SELECT @@IDENTITY"; SqlCommand cmd = new SqlCommand(sql, connection); cmd.Parameters.AddWithValue("@enm", txtEName.Text.Trim()); cmd.Parameters.AddWithValue("@eimg", imgByte); int id = Convert.ToInt32(cmd.ExecuteScalar()); lblResult.Text = String.Format("Employee ID is {0}", id); } catch { lblResult.Text = "There was an error"; } finally { connection.Close(); }
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Jun 7, 2006
Images, PDFs, word documents, etc..., will it affect the performance of my sql if I stored them in it as blob objects? Or it's better to use the filesystem instead and just store file paths in my sql?
thanks in advance
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Jul 10, 2001
hi all
just i want to know how to insert image into database. pl help.
thanks
kum
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Sep 24, 2001
Can you store images in a database or in a table, or do you have to only store the image path/name in the database while the image is in another folder? IF anyone knows, please share with me. Thanks.
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Jun 8, 2004
Hello. I am wondering how to effectively reduce the size of my database. After viewing the individual table sizes, I have come to realize that nearly 99% of the database's size is due to images. I am told that too much binary data is not good. How can I go about reducing the size of my database (possibly the images themselves)? I'd appreciate any help.
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Jun 21, 2007
Hi,
I need some tips regarding some performance issues and it would have been great if someone could provide me with the same. I'm into a project where we need to handle a lot of images dynamically. Images are delivered dynamically as per the users query. You can think of it something like an image search. The technologies used for this project are ASP.Net 2.0, C# and SQL Server 2000. I would like to know if the images should be stored in the database or as files itself. I did a couple of R&D on this and 90% of the places I found that it€™s better to store the images as files. As a final answer to this I thought I'll post this query in this forum. Irrespective of whether the images are stored in the database or as files, the following are some of the key features that I'm looking into (priority wise):
1. Performance - I would like to obtain the maximum performance. Images need to be delivered without
much delay.
2. Security of the data and images.
3. Easy backing up and restoration of the data and images.
It would have been great if someone could provide me with the right solution with supportive answers, so that I would be able to design the project accordingly.
Thanks & Regards,
Frens
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Mar 7, 2008
Hi,
how do i upload and download images and files from database row?is there anyway i can upload images so that uploaded images ares saved in a listbox and at the same time in the IMAGES folderin the solution explorer as well so that i can later select an image fromlistbox and download it when needed? i m using c#,vwd2005 express,sql express.
thanks.
jack.
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Jul 20, 2005
Hi There,Being quite new to MS-SQL I would like to ask if there is a general opinionof what approach should be taken to storing things like external documentsand images in databases.Should the actual files be stored within the database, or instead shouldlinks to the files on a file server or something similar be stored instead.For the end user I imagine it is easier to have everything stored within thedatabase, because doing it the other way in effect gives another level ofmanagement because there is the need to perhaps manually look after the fileserver with all the image files or document files on.In my particular case, I am building a database where the users use a greatmany Word documents. For example, I particular record might have a number ofdifferent Word documents associated with it.I was going to create a "Documents" table that all documents were stored in(including meta data about each document because it will be really useful tobe able to search for documents so that they can be reused).In this table I was in a dilemma as to whether to actually store thedocuments in the table. Other then the performance hit and memoryrequirements this will require, are there any other disadvantages?What are the general thoughts when a database needs to manage a lot of pdfand word documents?Thanks in advance.Dave.
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Dec 1, 2006
Hi friends
I am discussing problem of client server application.I am devloping a Datbase application.
. My client is using a VB6.0 application,which communicate the database. I am using Sql Sever as database.I can insert and retive any type of information from database using my client application.But I dont know how to insert and retrive image or picture(like .jpg or other formats) into database using a vb application.If anyone know how to maipulate images in databse using vb6.o.Plz suggest me the code of vb which can insert images into database.
Thank u
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Jun 19, 2007
I have recently designed and built my first database using SQL server 2005 express. I have included an image (BLOB) column in one of the database tables. This is a bad idea according to some experts, and some say it is OK!
I am currently carrying out a trial with just 3 pictures via Visual Basic 2005 express forms, and there is no problem so far as the images are displayed for each record. But I anticipate between 300 - 1000 images for the table, and this could pose real problems for SQL server 2005 express and Visual Basic 2005 express, I guess.
I have just been reading that the cost of storing large images in the database is too high! I have also read it's better to store images (BLOB) into the file system because it is cheaper to store them no matter how many there are.
But the question is how I can reference an image in this path: C:PictureProductGrocery 0052745.jpg in the database table, so that when I select a record Visual Basic 2005 forms the image is displayed accordingly, similar as when stored directly in the database table? Your help very much appreciated.
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Oct 14, 2015
I have one table the image column contains pictures based on image datatype. If the user upload the image from the form, the image was stored in the table its working fine and I did.
Here I want at the same time, the inserted image is sending mail to receptionist in the background.
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Nov 15, 2006
hi
I have used the following code (mostly created by MSDN) to retrive a binary field from SQL database. it works but I have extra space between characters. for example if I save a text file with "Hello world" text, after retriving I have it like "H e l l o w o r l d". what is the problem??????
I am really looking forward your answers
private void retrive()
{
public void a()
{
SqlConnection connection = new SqlConnection("Some Connection string");
SqlCommand command = new SqlCommand("Select * from temp", connection);
// Writes the BLOB to a file
FileStream stream;
// Streams the BLOB to the FileStream object.
BinaryWriter writer;
// Size of the BLOB buffer.
int bufferSize = 50;
// The BLOB byte[] buffer to be filled by GetBytes.
byte[] outByte = new byte[bufferSize];
// The bytes returned from GetBytes.
long retval;
// The starting position in the BLOB output.
long startIndex = 0;
// Open the connection and read data into the DataReader.
connection.Open();
SqlDataReader reader = command.ExecuteReader(CommandBehavior.SequentialAccess);
while (reader.Read())
{
// Create a file to hold the output.
stream = new FileStream(
"C:\file.txt", FileMode.OpenOrCreate, FileAccess.Write);
writer = new BinaryWriter(stream);
// Reset the starting byte for the new BLOB.
startIndex = 0;
// Read bytes into outByte[] and retain the number of bytes returned.
retval = reader.GetBytes(0, startIndex, outByte, 0, bufferSize);
// Continue while there are bytes beyond the size of the buffer.
while (retval == bufferSize)
{
writer.Write(outByte);
writer.Flush();
// Reposition start index to end of last buffer and fill buffer.
startIndex += bufferSize;
retval = reader.GetBytes(0, startIndex, outByte, 0, bufferSize);
}
// Write the remaining buffer.
if (retval != 0)
writer.Write(outByte, 0, (int)retval - 1);
writer.Flush();
// Close the output file.
writer.Close();
stream.Close();
}
// Close the reader and the connection.
reader.Close();
connection.Close();
}
}
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