Using DAO To Access Binary Data In Sql Server 2005?
Aug 29, 2006
(Appologies if this group isn't the best place for this post)
Is it possible to use DAO 3.6 to access binary data (varbinary(max)) in
Sql Server 2005? I have images and sound in a Sql 2005 DB that I need
to retrieve (and write) with DAO (ADO and ADO.Net are not options as
this is legacy code that can't be changed).
Thx,
Marcus
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Jul 14, 2007
Hi I've followed a tutorial on how to write and read varbinary(max) data to and from a database. But when i try to read the data i get the error that the data would be truncated, but only when the varbinary(max) is greater then 8kB. I've used a system stored procedure (sp_tableoption) to set the table that holds the data to store data outside rows. To select the data i'm using a stored procedure: SELECT imageData , MIMEType FROM Pictures WHERE (imageTitle = @imageTitle) And then using an .aspx page to Response.Write the data:Using conn As New sql.SqlConnection conn.ConnectionString = ConfigurationManager.ConnectionStrings("myConnectionString").ToString Dim getLogoCommand As New sql.SqlCommand getLogoCommand.CommandType = Data.CommandType.StoredProcedure getLogoCommand.CommandText = "GetPicture" getLogoCommand.Connection = conn Dim imageTitleParameter As New sql.SqlParameter("@imageTitle", Data.SqlDbType.NVarChar, 200) imageTitleParameter.Value = Request("imageTitle") imageTitleParameter.Direction = Data.ParameterDirection.Input getLogoCommand.Parameters.Add(imageTitleParameter) conn.Open() Using logoReader As sql.SqlDataReader = getLogoCommand.ExecuteReader logoReader.Read() If logoReader.HasRows = True Then Response.Clear() Response.ContentType = logoReader("MIMEtype").ToString() Response.BinaryWrite(logoReader("imageData")) End If End Using conn.Close() End Using Can anyone please help me with this?!
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Feb 21, 2006
When using AquaData or JDBC (inet tds driver), when doing an insert using SqlServer 2005, I get error "String or binary data would be truncated" when the data is actually OK. There are no triggers, etc. that would confuse the situation. It works fine in SqlServer 2000.
The scenario is as follows:
Create table:
create table test3 (
name varchar (18) ,
tbname varchar (18)
)
Create and populate table:
create table maxtable (
tablename varchar (18) not null,
[...]
)
Try to insert into test3:
insert into test3 (name, tbname)
select i.name, o.name
from dbo.sysindexes i, sysobjects o, maxtable m
where i.indid > 0 and i.indid < 255
and i.id = o.id and i.indid = 1
and o.name = lower(m.tablename)
And I get the error "String or binary data would be truncated." The values being selected for i.name and o.name have maximum length of 18. There are other rows in sysindexes and sysobjects with longer values, but they are not being selected.
The error does not occur with SQL Server Management Studio, and does not occur using SqlServer 2000.
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Sep 5, 2007
Hi all,
I have a problem reading binary data in MSSQL using the Server Mgmt Studio. All it shows in the column is "<Binary data>". Is there a way to view this data at least the SIZE?
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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Feb 5, 2007
is there a step by step paper to get there? here is what i need to consider. I Iwill have many customers that will need their own set of records and access pages "branded for their company" each customer will have many clients. I am hosting this application on a windows 2003 server with SQL 2005 server enterprise.
I am using windows authentication, I have created a username in windows, then i added the windows user in SQL management studio in security, granted "DB Read" and "DB write" and again under the database security tab. still from the web authentication fails. i must be nissing a step or two?
I expect to set up a username for each database as i setup new customers.
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Sep 10, 2007
I have one column in SQL Server 2005 of data type VARCHAR(4000).
I have imported sql Server 2005 database data into one mdb file.After importing a data into the mdb file, above column
data type converted into the memo type in the Access database.
now when I am trying to import a data from this MS Access File(db1.mdb) into the another SQL Server 2005 database, got the error of Unicode Converting a memo data type conversion in Export/Import data wizard.
Could you please let me know what is the reason?
I know that memo data type does not supported into the SQl Server 2005.
I am with SQL Server 2005 Standard Edition with SP2.
Please help me to understans this issue correctly?
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May 21, 2008
String or binary data would be truncated. I get this error when entering data using sql server management studio express.
I am not running a sql to insert or update the table. This is through the EDI.
The data type is varchar(100). I enter one character and it errors on me. So this isn't a string being too long problem.
Any ideas?
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Jun 27, 2007
I have been pulling my hair out on this.
I am trying to pass a binary value from an ASP.NET app to a VERY simple stored proc, and I can NOT get it to work!
Here is some of my code:
Code Snippet
ALTER PROCEDURE [dbo].[sp_SelectAppointments] @PID VarChar(50)
AS
BEGIN
--set @PID = 0x00000000000000B1
--PLEASE NOTE HERE THAT THE ABOVE VALUE(WHEN UNCOMMENTED) RETURNS RECORDS
--WHEN THE VALUE IS IN QUOTES (AS IT WOULD BE) IT DOES NOT WORK
SET NOCOUNT ON;
SELECT Appt_Date, Appt_Description, Rn_Appointments_Id
FROM Rn_Appointments
WHERE project = @PID --Project is a binary field.
END
I created a Dataset in VS2005, and here is the code that passes the value to the Dataset:
Code Snippet
Dim PID As String = Request.QueryString("pid")
PID = "0x00000000000000B1"
Dim da2 As New sp_SelectAppointmentsTableAdapter
GridView1.DataSource = da2.GetData2(PID)
GridView1.DataBind()
What am I missing?? Can anybody please help me out here?
Thank you.
Steve
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Jul 5, 2006
Hi
Here is the brief to my problemWe had our database on SQL Server 2000 and Windows 2000.This machine
had 2gb of RAM and dual Penitum 3 processors and about 25-30 users were
connected all the time. The size of database is around 2 gb. Even on this setup
rate of data retrival was good, never had any issues. We moved to SQL Server 2005 and Windows 2003. This machines has
2 Pentium Xeon 3.4 processors and 2 stick of KINGSTON 1024 MB 333
MHZ DDR DIMM ECC CL2.5 DUAL RANK X4 INTEL. The rate of data
retrival is awful and its very slow. It using about 1.7 to 1.9 gb of RAM all the
time. Page File usage is about 2.07 gb and Virtual Usage is about 1.7gb.I dont quiet understand why is it so slow to get data. We use bespoke software,
so nothing has changed there. Hardware specification of our server is far more better then the recommended
system requirement for SQL Server 2005.Am i missing something out or i havent set up the SQL Server properly? Any help would really be appreciated.Mits
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Apr 5, 2007
I want to upload data from ACCESS database( contains more than 60 tables) to SQL server 2005 database( same table structure).
If I use the method of copying table by table and Recordset to Recordset, It takes TOO long ( like 8 hrs).
Could you pls suggest me the efficient way of doing this task. I heard something like DTS for this.But I never
used this.. help me
Thanks
Goldie
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Sep 20, 2007
Here 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
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Oct 5, 2007
I have a customer using a web app where the data is drawn from a database in SQL Server 2005.
In addition to its normal tables, the database has two lookup tables which are deleted, recreated, and repopulated once a week. The data for these two tables comes from two queries in an Access database which essentially turn many related tables into two flat tables.
I know this can be done with SSIS, I've done it, I suppose it could be done witth SSMA for Access, but could this operation be done with a stored prodecure ? Most steps would not be a problems. They would be:
- Drop the two tables in SQL Server (no problem)
- Recreate them (no problem, maybe better to just delete all existing records, either way)
- Connect to the query in the Access database (here is where I have questions)
- Simply do an INSERT from the Access query to the SQL table.
So my question is whether we can connect to an Acess query from a stored proc, I suppose using ODBC.
Can this be done? If so how? Are there any papers on this topic?
Msny thanks,
Mike Thomas
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Feb 20, 2007
I have a database in ACCESS and i want everytime that there is a change made in Access the cude in SQL server to be automatically updated .Is there a way that this can be done with Integration Services?
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Jan 29, 2006
There are two datatypes for storing binary data type in the SQL Server:1. binary - for fixed length binary data2. varbinary - for variable length dataMy question is: how is data inserted into them? Do they have anydelimiters that go into the insert statement like strings and datetimeshave? What format (hex/decimal?) do they accept data in? Can you pleasegive me an insert statement example?
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Oct 19, 2007
hello.
i have a _CommandPtr that has the type CommandTypeEnum::adCmdTex, and the CommandText a query("Select * from Table_1") and this select returns one row that has a binary data in it.
Code Block
_CommandPtr pCommand;
//Create the C++ ADO Command Object
pCommand.CreateInstance(__uuidof(Command));
pCommand->ActiveConnection = this->pConnection;
//Make the ADO C++ command object to accept stored procedure
pCommand->CommandType = CommandTypeEnum::adCmdText;
//Tell the name of the Stored Procedure to the command object
pCommand->CommandText = _bstr_t("select * from Table_1");
//get recordset
pRecordset = pCommand->Execute(NULL,NULL,CommandTypeEnum::adCmdText);
BYTE* buffer = NULL;
if(pRecordset != NULL)
{
while (!pRecordset->GetEndOfFile())
{
VARIANT var = pRecordset->Fields->GetItem("test")->Value;
void * pData = NULL;
SafeArrayAccessData(var.parray, &pData);
long size = GetArraySize(var, NULL);
buffer = new BYTE[size];
memcpy(buffer, pData, size);
SafeArrayUnaccessData(var.parray);
pRecordset->MoveNext();
}
pRecordset->Close();
}
where:
Code Block
long GetArraySize(const VARIANT& var, long * nElems)
{
if ( !(var.vt & VT_ARRAY) ) return -1;
long size = 0;
long dims = SafeArrayGetDim(var.parray);
long elemSize = SafeArrayGetElemsize(var.parray);
long elems = 1;
for ( long i=1; i <= dims; i++ )
{
long lbound, ubound;
SafeArrayGetLBound(var.parray, i, &lbound);
SafeArrayGetUBound(var.parray, i, &ubound);
elems *= (ubound - lbound + 1);
}
if ( nElems ) *nElems = elems;
size = elems*elemSize;
return size;
}
I enter in VARIANT var = pRecordset..... and if gives me a value... but when I put it in Memory explorer in VS, i only see this data " fe ee fe ee fe ee fe ee fe ee fe ee fe ee ...fe ee" and of course it brakes at
SafeArrayGetLBound(var.parray, i, &lbound);
Can someone tell me where I am doing a very bad thing?
P.S. I was able to read the binary data from the server using C#.NET 2.0.
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Aug 30, 2007
I have to export data from SQL Server 2005 express to Access database. I have done many import/export using DTS package via SQL 2000. I don't have BI installed in my SQL SERVER 2005 Express. I understand that I have to use SSIS for sql server 2005. Any help is greatly appreciated.
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Mar 5, 2007
Dear Sir/Madam,
I have some data which is stores in Foxpro dbf files & Access 200 MDB file. Can i extract import these files into SQL Server 2005
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May 3, 2007
How can I access data to SQL server 2005 using Windows form application,ADO.net and .Net remoting?
Can anybody help me? please...
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Nov 17, 2007
Here is my situation: I am creating a database driven ASP.Net web application that will be used over the internet. My ASP.Net application connects to my SQL server 2005 database/server by using a SQL server login. I am using the DPAPI API to encrypt my connection stings with a hidden entropy value for extra security. I am using the SQL login for obvious reasons, as my users will not have a windows login.
What I am trying to do: I want to limit this SQL login account to be able to just run/execute stored procedures and NOT access the tables or views directly. In my ASP.Net application I am using the MS applications data block, and I am using stored procedures for every single database access action. There is no inline SQL being executed from my web application.
What I have tried so far:
I created a new schema and made the above SQL login account owner of this schema. I then granted "Execute" permissions to the SQL login and DENY permissions to all other permissions.
I created an database role with "Execute" only permissions and DENY permissions to all other permissions.
What Happened: In BOTH of the above scenarios I tested a direct SQL statement against one of my tables, from my ASP.Net application and I was able retrieve data back, NOT GOOD, exactly what I am trying to STOP.
If someone could give me (Step-by-Step) guide on how to setup the situation I am looking for, I would be very grateful!
Thanks to all that help!
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Nov 1, 2006
please mail me at lavkesh_kumar@yaho.com
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Mar 15, 2007
Hey all, WE have a document management system where by Adminstrators can upload documents, once the document is uploaded the binary data is stored on in a folder on the web server. We used to stored the documents in the actaul db table, but we found that there were to many documents and it was using alot of space on db server. So my boss has decided we are now going to upload the binary data onto the web server. Currently we are donig this with new documents which have been added or documents which are gettinguploaded when reloading, but there are many documents in the db table which have not been updated and are still embedded in the db table. So i need to figure out how to go about copying the data storewd in the db table and storing it in web servers folder location. I've tried various things for a enitre day but im going round in circiles. MemoryStream mStream = new MemoryStream((Byte[])dtrResults["file"]); BinaryReader bReader = new BinaryReader(mStream); int intFileSize = (int)mStream.Length; Byte[] byteFile = (Byte[])dtrResults["file"]; i can get to this state but then how do i create a folder on the BinaryREader to then store the binary data of the file to the location. BinaryReader bReader2 = new BinaryReader(File.Open(strDocFolder + strSavedFileName, FileMode.Create)); int count2 = bReader2.Read(byteFile, 0, intFileSize); bReader2.Close();i've also tried this but when the file gets created in the folder there is no content. i do know that the file does contain content as ive tried this and downlaoding the file from that page acctually works string strContentTpe = WValue.WStr(dtrResults["contenttype"]); int intFileSize = VValue.VInt(dtrResults["filesize"]); / Byte[] byteFile = ((Byte[])dtrResults["file"]); //Downloads the data correctly Response.ClearContent(); Response.ClearHeaders(); Response.AddHeader("Content-Disposition", "attachment; filename="" + WValue.WStr(dtrResults["docfilename"]) + """); Response.AddHeader("Content-Length", WValue.WStr(intFileSize)); Response.ContentType = strContentTpe; Response.BinaryWrite(byteFile); I hope ive made some snese andthat someone can hlep me. Have a nice dayZal
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Oct 15, 2014
I was assigned a project to read binary data file (2G) and select data from OrderID, OrderDate and Price three columns (there are about 50 columns) into SQL table.
Where to start? Do I need to convert entire binary data file into text file?
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Oct 9, 2007
I am exporting 350 tables data from SQL Server 2005 to Access 2003.and getting the below error.
SSIS package "Package2.dtsx" starting.
Information: 0x4004300A at Data Flow Task, DTS.Pipeline: Validation phase is beginning.
Information: 0x40043006 at Data Flow Task, DTS.Pipeline: Prepare for Execute phase is beginning.
Error: 0xC0202009 at Package2, Connection manager "DestinationConnectionOLEDB": SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005.
An OLE DB record is available. Source: "Microsoft JET Database Engine" Hresult: 0x80004005 Description: "Unspecified error".
Error: 0xC020801C at Data Flow Task, Destination 64 - CLIMBINGEXP [8065]: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method call to the connection manager "DestinationConnectionOLEDB" failed with error code 0xC0202009. There may be error messages posted before this with more information on why the AcquireConnection method call failed.
Error: 0xC004701A at Data Flow Task, DTS.Pipeline: component "Destination 64 - CLIMBINGEXP" (8065) failed the pre-execute phase and returned error code 0xC020801C.
Any clue?
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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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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 10, 2015
I have recently upgraded to SQL2014 on Win2012. The Access front end program works fine.
But, previously created Excel reports with built in MS Queries now fail with the above error for users with MS 2013. The queries still work for users still using MS 2007.
I also cannot create any new queries and get the same error message. If I log on as myself on the domain to another PC with 2007 installed it works fine, so I don't think it is anything to do with AD groups or permissions.
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Oct 30, 2007
Hi guys,
I've been developing desktop client-server and web apps and have used Access and SQL Server Standard most of the time.
I'm looking into using SQL CE, and had a few questions that I can't seem to get a clear picture on:
- The documentation for CE says that it supports 256 simultaneous connections and offers the Isolation levels, Transactions, Locking, etc with a 4GB DB. But most people say that CE is strictly a single-user DB and should not be used as a DB Server.
Could CE be extended for use as a multi-user DB Server by creating a custom server such as a .NET Remoting Server hosted through a Windows Service (or any other custom host) on a machine whereby the CE DB would run in-process with this server on the machine which would then be accessed by multiple users from multiple machines??
Clients PCs -> Server PC hosting Remoting Service -> ADO.NET -> SQL CE
- and further more can we use Enterprise Services (Serviced Components) to connect to SQL CE and further extend this model to offer a pure high-quality DB Server?
Clients PCs -> Server PC hosting Remoting Service -> Enterprise Services -> ADO.NET -> SQL CE
Seems quite doable to me, but I may be wrong..please let me know either ways
Thanks,
CP
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Oct 18, 2006
When I enter over 4000 chars in any ntext field in my SQL Server 2005 database (directly in the database and through the application) I get an error saying that the data could not be updated because string or binary data would be truncated.Has anyone ever seen this? I cannot figure out what is causing it, ntext should be able to hold a lot more data that this...
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Jul 5, 2006
Hi.
I'm working on an application that will use SQL Server 2005 Everywhere Edition for single user installations (i.e. notebooks) and SQL Server 2005 Express Edition for network installations. The single user databases will synchronize with the network databases.
The databases will have to store a large number of documents of different kinds, most of them will be less than 200 KB in size. According to the SQL Server 2005 Express Edition documentation, I should avoid using the IMAGE data type and opt for VARBINARY(MAX) instead. The current version CTP of SQL Server 2005 Everywhere Edition does not support VARBINARY(MAX) (the maximum size is 8000 bytes).
Will the final version of SQL Server 2005 Everywhere Edition support VARBINARY(MAX)? Or should I use the IMAGE data type in both schemas or IMAGE in the SQL Server 2005 Everywhere Edition database and VARBINARY(MAX) in the SQL Server 2005 Express Edition database?
Do I have to consider anything special when the databases are synchronized via replication because of the large number of rows with binary fields?
Regards,
Gerrit
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Apr 22, 2015
When i am trying to start our hospital software based on SQL server 2000, it shows Following Error.Search Condition is not valid, (DBNETLIB) Connection Open (connect()). SQL server does not exist or excess denied. Due to Fetch data.I run our software in Windows 8.1, while it smothly runs in previous version of Windows XP and 7.
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Dec 18, 2006
I am trying to connect through ODBC connectivity, but it will not allow me to do so. I have investigated this matter. It leads me back to the server, because as I was configuring my client side database. It kept asking for the DSN(datasource name), but I was unable to choose one because there wasn't one to choose. Which is my current dilemma, How can I do this and have it available to choose from the server to satisfy the Access database?
I went to the domain where the software resides but I don't know what steps to take? I also found an interesting piece on microsoft about Kerberos, but I can't follow along according to the instructions it has. I have Access 2003 & SQL SERVER 2005, HELP...!
Basically, this is right off the heels of the install. I setup the server without the connectivity, but it is running the current configuration.
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Nov 4, 2007
i am using asp.net with sql 2005.here i am having lakhs of records .when we retrive the records it became very slow. it takes long time to retrive the datas from sql.i used index,stored procedure,but no use. Any one know how to access the datas in fast manner.
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