Can someone please show me an example on how to read & write blob data to a Database? For example if I have the query below (Northwind), how do I actually place the blob item in a picture box on a windows form?SELECT Picture FROM CategoriesWHERE CategoryID = 5
View 2 RepliesCan someone please give me an example in C# on how to retrieve an Image from a Table and store i into a Picture box on a windows form? In addition, how to insert a blob record into a table as well.
View 4 Replies View RelatedDoes anyone have any experience of this type of data please? I have been asked to work on a project where it looks like we will be taking MS Office files and scanned images and storing them in a SQL 2000 db so that they can be aquired by a third party application. I am most intereested in the size of the records as the server may need upgrading, for space and performance.
I am also interested in how a BLOB record is created, is it a particular save process from Word / Excel etc or can you specify to import as a BLOB from a SQL script?
Any info welcomed as i really dont know where to start !!!
TIA
Hi all,It was my understanding (Please correct me if I'm wrong on this!) thatBLOB data actually reside on their own separate pages and a BLOB fieldonly holds a pointer to the location of the actual data, therefore theBLOB data per se would not get written to the log, only the pointerwould be written.If log shipping works by applying the transaction log to the standbydatabase, then what happens to the BLOB data?Related question, how does transactional replication work? Is it alsobased on the transaction log?TIA,Ellen
View 4 Replies View RelatedHi, I have to migrate an oracle database over to SQL Server 2005. One of the tables has PDF files stored as BLOB. All the ORACLE providers in SSIS do not support BLOB column. What can I use or how can I get the PDF files into my SQL table? The SQL column can be either IMAGE or VARBINARY(MAX).
Thanks,
Les
hi,
i learned that BLOB data types are out-row data by default, i think it means it will not store in the row of table, because the max-length of a col is 8KB.
but will the system store those BLOB data? and is there any way to specify where should it be stored, like tha Partition Schema.
i am using SQL Express, so i hope it works for express.(partition does not work for express)
1. How many blob data types can be defined in a table on SQL Server 7.0
2. What is the max size for a blob data type.
Hi,
I have a problem with writing BLOB data into type of 'image' field.
If the data size > ~280 MByte (< 2 GB) the operation failed.
It is appear on SQL Server 2000 and 2005 (MSDE and express also).
Detailes :
column type : image
Server : SQL Server 2005, version - 9.0.3042
technology : OLEDB, from C++ -> CDynamicAccessor
protocol for communication : TCP/IP
Size of the DB : ~3 MByte.
As I see the provider read partially (~267 943 936 byte if all is 280 MB) of data from my ISequentialStream.
Error of OLEDB:
DB_E_ERRORSOCCURED : 0x80040e21
[DBNETLIB][ConnectionWrite(send()).]
General network error.
SQL Server error log entries :
10/05/2007 16:52:53,Server,Unknown,A fatal error occurred while reading the
input stream from the network. The session will be terminated.
10/05/2007 16:52:53,Server,Unknown,Error: 4014<c/> Severity: 20<c/> State: 1.
Entries of SQL profiler :
Error: 4002, Severity: 16, State: 4
The incoming tabular data stream (TDS) protocol stream is incorrect. The stream ended unexpectedly.
I used to set up the bug with contents of a ~350 MB .zip or .mdf file. Everyting is ok when the data <= ~250 MB.
I had ran MS Network Monitor on the server side and not found partially transmitted frames (but I use it on first time).
We try it on another machines, on another LAN with other BLOB (and the bug arised).
I had try 'named pipes' protocol for communication (and the bug arised).
I will be glad if somebody maintain that how can I found the origin of the bug (tools, log options, protokol settings etc.) or
I can present my simple test program (VC 2005 project) and its database (MS SQL 2005).
Best Regards,
Imre
How do I use the GetBlobdata to get the string representation?
I have tried numerous version of Encoders thinking that
System.Text.Encoding.GetEncoding(Row.TextData.ColumnInfo.CodePage).GetString(b) (where b is the byte array returned by GetBlobData)
But this doesn't work. I have had to resort to converting the field in SQL, so I don't have to deal with blobdata.
Hi all,
I am trying to store binary datafiles into a SQl Express table. However I can not find the BLOB data type when I am designing the table. Are we limited to using that kind of data type in the Express edition? Thanks.
Ke
Hi,Can we insert BLOB data using store procedure using Oracle and ASP.Net.I have inserted BLOB data using insert command, now i want to insert that BLOB via store procedure....any links/tips will be helpful...
View 1 Replies View RelatedHi experts,
I have a textbox and a upload file function in my asp.net page.User can either copy/paste their resume in text or upload their resume file and submit the application.The uploaded file will be saved into a BLOB column, but do you know if text in textbox can be saved into BLOB column?
I received error message on the code:'save Applicant resume to a BLOB-image datatype column objComd.Parameters.Add(New SqlParameter("@AppResume", SqlDbType.NText))
error:Exception has been thrown by the target of an invocation.Operand type clash:ntext is incompatible with image
Hello,
I have SQL Server 2000 and I'm trying to import data from a paradox v5 database. Everything has moved over fine but the data from the blob fields. When I use the import tool and try connect to a paradox blob field, the import wizard does not "see" the paradox blob field. here is and example.
If I have a table with the following fields.
id char(20)
description char(120)
image blob
the ms-sql import wizard sees
id char(20)
description char(20)
I find this very odd, but I do need a solution. Any Ideas?
TY
I need some assistence here.I have two servers. One with MS SQL 2000 Standard edition and MSDE(MSdesktop engine).I need to sync my databases nightly, as a backup.Is there a cheap software that will do this? I don't want to justbackup the entire databases files b/c they are large and I'mtransfering them over DSL.I was thinking transaction logging, but I'm not sure. Is there a easyway to do this?I don't know how to accomplish this task.PLEASE HELP.
View 9 Replies View RelatedHow to access the XML, CLOB and BLOB Oracle data through linked server from SQL Server 2012?
I want to retrieve XML, CLOB and BLOB data from SQL Server 2012 through Oracle Linked server .
I am using SqlServer 2000 and Jdbc connectivity in my application on windows.So, when i execute a query on Sqlserver database as :
Select * from DBO.RS_TABLELOB where Rep_sync_id > 15 and Rep_server_name != 'replicator' order by Rep_sync_id;
This problem is only with the BLOB data types in table RS_TABLELOB.
Then i got an error as:
[Microsoft][SQLServer 2000 Driver for JDBC]ResultSet can not re-read row data for column
1.'.'.at com.microsoft.jdbc.base.BaseExceptions.createExcep tion(Unknown Source)at
com.microsoft.jdbc.base.BaseExceptions.getExceptio n(Unknown Source)at
com.microsoft.jdbc.base.BaseResultSet.validateColu mnIndex(Unknown Source)at
com.microsoft.jdbc.base.BaseResultSet.getObject(Un known Source)at
com.microsoft.jdbc.base.BaseResultSet.getObject(Un known Source)
Please help me out, if you have any idea!!!
Thanks in advance
John Berry
Hi! I tried to save some image data, but it get truncated at 8000 (the table column is defined as Image). I then wrote a converter to try ntext-datatype instead, but it gets truncated at 4000.
Error message:
System.Data.SqlServerCe: @3 : String truncation: max=4000, len=4168
The code uses only ADO entity framework for database access. Is there a way to store binary data larger than 8000 bytes? I am running SQL Compact 3.5 sp 1 BETA.
Henning
We are debating what is industry “best practice� for serving huge numbers of images in an industrial scale website. More directly, which approach produces the best performance and the best scalability? For example, how do sites like ebay, Amazon, and other large sites handle the millions or billions of images they must deal with?
Store as BLOB in sql server?
Store in /images folder and store url text into sql server?
We always assumed that the second approach is what most sites must do. But do they?
One developer on our team maintains that storing one million or more image files in a directory will most certainly result in poor performance, because the server must scan the directory, searching for the correct file, each time a web request is made. The directory is not indexed (?) so performance must eventually suffer.
Other developer counters that storing millions of images as BLOBs into sql server will result in poor performance and HUGE database. An additional layer of access (webserver to sql server, back to webserver, then to client) causes a delay and performance hit.
Who is right? What do the gurus as the world class sites do?
A little background on what I am trying to achieve first. We are moving to Azure virtual machines and we will have 8 disks on the SQL Server box. I am adding more files to the primary file group and each file will go on its own drive. I am then rebalancing data across these files by rebuilding all of the indexes on the tables which is working fine. No problems so far all is good.
I now have an additional problem. If there is a lob or blob column on the table, rebuilding the clustered index and all the non clustered indexes doesn't rebalance the blob or lob data across the disks such as it does with in row data.
I cannot find any articles on rebalancing lob or blob data because all the articles say to move to a new file group. I do not want a new file group, I just want to use the primary file group where the data already resides, and just redistribute it evenly in the same way that I can in row data which is working fine.
One solution I thought about was to BCP data out of the table, truncate the table and then BCP back into the table which I imagine would have the desired effect of distributing the data evenly over the files.
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:
I have had an application running successfully in production for two years. In the last three months the app has become a document management system as well. During the addition of images, it was decided that no images would be stored in the database but on the file system. We now have over 500,000 images averaging in size of 92k each. I had to upgraid the raid once and I can only assume that I will again. I am not expecting the image count to exceed 700,000 in the next 6 months; By this time next year, I am expecting 1.2 million.
Should I reconsider storing the images in the database?
If they are stored in the database, what are the effects on performance?
Thanks in Advance
Wes
Does sql server has the data type similar to BLOB (Binary largerobject)which is available to DB2. BLOB in DB2 can support up to 2 G(variable-length data )if it does have, which one offers better functionalitiesany advice will be greatly appreciated!
View 4 Replies View RelatedHi,One of our third-party software vendors is planning to implement BLOBin their database for storing certain documents. We are not toothrilled about it, since it can be a drain on our resources, but Iwould like to get the expert opinion out there on the pros and cons ofimplementing this.Also, the database is in Full recovery mode and we back up thetransaction log every 15 minutes. We also do a process similar to logshipping. We have two servers to which these transaction logs arerestored to periodically. What will the impact on the transaction logsdue to changes to the BLOB fields.If you could also point me to any resources that talks in detail aboutperformance, backup and recovery in relation to BLOB that would begreat.Thanks in advanceKR
View 3 Replies View RelatedHi,
can anyone help ,me out here with some design consideration reguarding importing of BLOB data to a SQL server 2000 using T-SQL statements?
I want to make an import of some documents which are stored in a Access database, to an Ms SQL server 2000. The documents are stored in the access database as a OLE Object, by now I thought of using the base64String function to convert the data from the access field and write it to the T-SQL statements which will written in a text batch file. And then I apply the SQL Convert function something like:
INSERT INTO testBin VALUES(convert(image,'base64sting_encoded'))
go
Does this work? Is it correct what I am doing?
Thanks.
Can anyone get me pointed in the right direction or even better specific instructions on how to export BLOB's to .JPG's ? They are in SQL 2005 and I have about 1500 that I need to export. I ran across another site that said to use SSIS but I havent had much luck.
View 1 Replies View RelatedWhat's a good way to work with Blobs and TableAdapters, in terms of declaring compatible column types in SQL Server and DataTable fields?
View 2 Replies View RelatedWe are using DTS to transfer database from 6.5 to 7.0. The data of those tables with text datatype can not be transferred to the server with version 7.0 though the table structure is transferred. The error message we got is "Error at Destionation for Row Number 1. Error encountered so far in this task: 1. query based insertion or updating of BLOB values can not be supported.
The source we use is Microsoft ODBC driver for SQL Server.
Thanks in advance.
Su Ge
I'm trying to transfer a table from a sql 7 server to an sql 6.5 server. When I try to select OLE db as the destination it gives me an error saying I can't do OLE DB unless I have sql 7.... So I chose ODBC
When it tries to transfer the table I get this error:
QUERY BASED INSERTION OR UPDATING OF BLOB VALUES CAN NOT BE SUPPORTED
what the hell? Is this due to the transfer from 7 to 6.5? How do I get around this?
-----
What I'm trying to do is change the datatype of a table in this 6.5 database from smallint to integer... (I wasn't the idiot that designed this database with a smallint primary key) There is not enough room to copy the table into a new table, and when I ran through the above process it dropped the table and I can't restore it because I'm not the admin. Is there a way of changing the primary key datatype without using up a large amount of database space? or can I do a transfer from 7-6.5 some how?
This is a nightmare... I wish my client would just upgrade to 7 then this would have taken 5 seconds instead of all day long
Hi,
I know in Mysql one can use a blob field(instead of varchar) to insert big amounts of data into a field - e.g User Notes or Long detailed descriptions
How do I create a field using Enterprise Manager(MSSQL) to be able to handle this amounts of data ???
I can't seem to find the BLOB-option upon creating a field in MSSQL, am I missing something here ???
Many thanks
Hello,
I currently have a problem with blobs being cut off.
From powerbuilder, I am trying to pull in an image that is stored as a blob. This has always worked fine in our software, until a more recent version, and is now presenting me with this problem. Here are the details...
When the software is installed with a Sybase Database, everything is working great. It pulls in the full size, and there are no problems here.
However, when the software is installed with a SQL Server DB, problems arise.
The main problem: When using a ADO.NET DBMS interface to the SQL Server DB, the select statement is only pulling in 32000 bytes.
Secondary problem: This one may present a problem in the future, if and when i fix the first problem. To narrow it down to see if it was the ADO.NET interface giving me the problem, i connected to the same table on the same server, but using an ODBC interface as opposed to ADO.NET. This gave me the first 32768 bytes.
So a) ADO.NET when interfacing with SQL Server is only giving me the first 32000 bytes in my selectblob statement. I have narrowed it down to ADO.NET, as the code works fine with Sybase, and ODBC interfacing with SQL Server does not limit it at 32000 bytes.
and if I get a solution to that, something may then be limiting the blob read in size at 32768. Maybe, maybe not... but it is happening with ODBC|SQL Server.
Does anyone have any ideas. This is driving me wild. I have pounded google searching for ADO.NET known blob limitations but cannot find anything.
I'm dying here. Anyone who can help me out would be great. Thanks
What is BLOB field in MS SQL? How to use insert and access from this field?
View 2 Replies View RelatedHi folks,
i have a problem with the result of my query.
There is a colum(a stored BLOB) witch appears like this:
8t¦–XEÄ
ð_JÑ |eÂ?ØÊ/TÅ® 0ù¯ó£1XðÃðpŸ8ãÖð'1ª@ˆ8^j֤K§ì©P=@Ÿú‡¿`T)áGä^ÄÞ˜ÖPfìrç(GC=8ȍ?‹T¼²¤÷ôœ1Ogu… J
K £J�8n1+CD"¹¯ÖE°-§¡�0(Ä¡‡6K? =L: Dþfþ¿€s¬ ð0ÀçPä]C·Y1ÄÅ¿(ßû‡Tâg@T $û?äþ0¯R@¥8NTÄhÄ “œã17D?i
I have a progam(QMF for Windows) in which i can selcet the colum and can chose bettween hexadezimal and binary.
Now my question: How can i make it works, that it is displayed as hexadezimal directly? An what is that above?
Many thanks in advance!
Is it possible to import BLOB data using SQL statements stored in a file to an SQL server. Can the actual INSERT statement contain binary data? Or how should I convert the binary data in order to work with an INSERT statement?
Thanks.