Need help reading a binary file see below for details...
I have uploaded a csv file into a sql table.
Now i want to extract the data and insert the data in the csv file into another sql table.
What commands can i use in sql to extract/ read the data ?
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.
i need to store a bmp or zipped file in a field of a ms sql db. i read the file using vb6 o.net, and in my mind i think sto store it in binary mode. the files could be more of 12 mega. whitch kind of field a could use?
View 1 Replies View RelatedHi 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?!
View 2 Replies View RelatedHi all,
I have one table with a column of type 'image'. There are manytypes of files saved in that column (i.e. .Doc,Xls,Pdf,jpg,gif etc.). What I want is, read that files from database and save it in temp folder on d drive of server. Can anyone help me in my problem?
Thanx in advance
OBJECTIVE: I would like to read a text file from SQL Server 2000, read the text file content, and load its conntents in a RichTextBoxTHINGS I'VE DONE AND HAVE WORKING:1) I've successfully load a text file (ex: textFile.txt) in sql server database table column (with datatype Image) 2) I've also able to load the file using a Handler as below: using System;using System.Web;using System.Data.SqlClient;public class HandlerImage : IHttpHandler {string connectionString;public void ProcessRequest (HttpContext context) {connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["NWS_ScheduleSQL2000"].ConnectionString;int ImageID = Convert.ToInt32(context.Request.QueryString["id"]);SqlConnection myConnection = new SqlConnection(connectionString);string Command = "SELECT [Image], Image_Type FROM Images WHERE Image_Id=@Image_Id";SqlCommand cmd = new SqlCommand(Command, myConnection);cmd.Parameters.Add("@Image_Id", System.Data.SqlDbType.Int).Value = ImageID;SqlDataReader dr;myConnection.Open(); cmd.Prepare(); dr = cmd.ExecuteReader();if (dr.Read()){ //WRITE IMAGE TO THE BROWSERcontext.Response.ContentType = dr["Image_Type"].ToString();context.Response.BinaryWrite((byte[])dr["Image"]);}myConnection.Close();}public bool IsReusable {get {return false;}}}'>'>
<a href='<%# "HandlerDocument.ashx?id=" + Eval("Doc_ID") %>'>File
</a>- Click on this link, I'll be able to download or view the file WHAT I WANT TO DO, BUT HAVE PROBLEM:- I would like to be able to read CONTENT of this file and load it in a string as belowStreamReader SR = new StreamReader()SR = File.Open("File.txt");String contentText = SR.Readline();txtBox.text = contentText;BUT THIS ONLY WORK FOR files in the server.I would like to be able to read FILE CONTENTS from SQL Server.PLEASE HELP. I really appreciate it.
Can someone firecct me to instructions on how to download a Binary file in a asp.net application.
I have a sql 2000 db that has a field that contains files and my users need access to them via my web app.
Hi,
I need help please.
I have a image field in SQL called AttachData.
I need to retrieve the information and save it on my computer.
I tried the following but it fails on the line 7.
How can I write the data from sql to my computer?
Here is my table in sql:
CREATE TABLE [dbo].[MailAttachment](
[MsgID] [int] NOT NULL,
[AttachName] [nvarchar](255) COLLATE Hebrew_CI_AS NULL,
[AttachType] [nvarchar](255) COLLATE Hebrew_CI_AS NULL,
[AttachSize] [int] NOT NULL DEFAULT (0),
[AttachCompSize] [int] NOT NULL DEFAULT (0),[AttachData] [image] NOT NULL
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]1 Dim s As New _
2 System.IO.FileStream("c:emails" _
3 & "" & AttachName.ToString, System.IO.FileMode.CreateNew,System.IO.FileAccess.Write)
4
6
7 ' s.Write(CType(AttachData, Byte()), 0, CInt(AttachSize))
8
10
11 s.Close()
Hi have done the following but get the errors at the end, any ideas
Created a stored procedureALTER PROCEDURE ulfile@upload varchar(200)ASINSERT INTO results(@upload)VALUES (@Upload)RETURN after sitting for two hours I realised I had a comma after (200) then the following in the .cs file using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;public partial class Default3 : System.Web.UI.Page{//PostedFile Property of Type HTTPPostedFileint intDocLen = txtFileContents.PostedFile.ContentLength;byte[] Docbuffer = new byte[intDoclen];protected void Page_Load(object sender, EventArgs e){ Stream objStream;//InputStream://Gets a Stream object which points to an uploaded Document; //to prepare for reading the contents of the file.objStream = txtFileContents.PostedFile.InputStream;objStream.Read(Docbuffer, 0, intDocLen);//results is the connection objectcmdUploadDoc = new SqlCommand("ulfile", results);cmdUploadDoc.CommandType = CommandType.StoredProcedure;//Add the Params which in the Stored Proc cmdUploadDoc.Parameters.Add("@upload ", SqlDbType.VarChar, 200);//Set Params ValuescmdUploadDoc.Parameters[0].Value = txtTitle.Text;//Set the "@Doc" Param to be Docbuffer byet ArraycmdUploadDoc.Parameters[1].Value = Docbuffer;cmdUploadDoc.Parameters[2].Value = strDocType; }private void btnSubmit_Click(object sender, System.EventArgs e){string strDocExt;//strDocType to store Document type which will be Stored in the Databasestring strDocType;//Will be used to determine Document lengthint intDocLen;//Stream object used for reading the contents of the Uploading DocumnetStream objStream;SqlConnection results;SqlCommand cmdUploadDoc;if(IsValid){if(txtFileContents.PostedFile != null){//Determine File TypestrDocExt = CString.Right(txtFileContents.PostedFile.FileName,4).ToLower();switch(strDocExt){case ".doc":strDocType = "doc";break;case ".ppt":strDocType = "ppt";break;case ".htm":strDocType = "htm";break;case ".html":strDocType = "htm";break;case ".jpg":strDocType = "jpg";break;case ".gif":strDocType = "gif";break;case ".im":strDocType = "im";break;default:strDocType = "txt";break;}//Grab the Content of the Uploaded DocumentintDocLen = txtFileContents.PostedFile.ContentLength;//buffer to hold Document Contentsbyte[] Docbuffer = new byte[intDocLen];//InputStream://Gets a Stream object which points to an uploaded Document; //to prepare for reading the contents of the file.objStream = txtFileContents.PostedFile.InputStream;//Store the Content of the Documnet in a buffer//This buffer will be stored in the DatabaseobjStream.Read(Docbuffer ,0,intDocLen);//Add Uploaded Documnet to Database as Binary//You have to change the connection stringBooksConn = new SqlConnection("Server=66.179.84.110;UID=******;PWD=******;Database=******");//Setting the SqlCommandcmdUploadDoc = new SqlCommand("ulfile",results);cmdUploadDoc.CommandType = CommandType.StoredProcedure;cmdUploadDoc.Parameters.Add("@upload ",SqlDbType.VarChar,200);cmdUploadDoc.Parameters[0].Value = txtTitle.Text;cmdUploadDoc.Parameters[1].Value = Docbuffer ;cmdUploadDoc.Parameters[2].Value = strDocType;Results.Open();cmdUploadDoc.ExecuteNonQuery();Results.Close();}//End of if(txtFileContents.PostedFile != null)}//End Of if(IsValid)}//End of Method btnSubmit_Click} And the form code <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" ><head id="Head1" runat="server"><title>Untitled Page</title></head><body><form id="frmUpload" method="post" enctype="multipart/form-data" runat="server"><span>Title</span><asp:textbox id="txtTitle" runat="server" EnableViewState="False"></asp:textbox><asp:requiredfieldvalidator id="valrTitle" runat="server" ErrorMessage="* Required" ControlToValidate="txtTitle">* Required</asp:requiredfieldvalidator><span>Document to Upload</span><input id="txtFileContents" type="file" runat="server" name="txtFileContents"></></><asp:button id="btnSubmit" Text="Submit" Runat="server" OnClick="btnSubmit_Click"></asp:button> </form></body></html> however when I try and view in browser I get the following Line 21:
Line 22:
Line 23: Stream objStream;
Line 24: //InputStream:
Line 25: //Gets a Stream object which points to an uploaded Document; I have trawlled the net, MSDN and anywhere else I can find to see what it is and nothing. eventually changed Stream.objstream to System.IO.Stream objStream; And now getting the following error Line 29:
Line 30: //results is the connection object
Line 31: cmdUploadDoc = new SqlCommand("ulfile",results);
Line 32: cmdUploadDoc.CommandType = CommandType.StoredProcedure;
Line 33: //Add the Params which in the Stored Proc Can anyone help?
Hello all,
I'm trying to easily change a value in 80 ssis configuration files from "localhost" to "myservername". I downloaded WinGrep to do this, but it's balking on some of the files, saying that they are binary files.
Does anyone know how to make the *.dtsconfig files NOT binary in SSIS?
Any suggestions GREATLY appreciated.
I won't go into the reason I have my servername in 80 places...
Andy
I am importing data from binary data files into SQL Server. This is the code I am using:
Do While Not EOF(1)
Get #1, , NonStdCurrRecord
adoRS.AddNew
adoRS!Field1 = CDate(NonStdCurrRecord.Field1)
adoRS!Field2 = CSng(NonStdCurrRecord.Field2)
adoRS!Field3 = CSng(NonStdCurrRecord.Field3)
adoRS!Field4 = CSng(NonStdCurrRecord.Field4)
adoRS!Field5 = CSng(NonStdCurrRecord.Field5)
adoRS!Field6 = CSng(NonStdCurrRecord.Field6)
adoRS!Field7 = CSng(NonStdCurrRecord.Field7)
adoRS.Update
Loop
Unfortunately, it takes about 8 mins to import a file with 180k records. Is there a faster way to do this?
Hello Experts,
I am createing one task (user control) in SSIS. I have property grid in my GUI and 2 buttons (OK & Cancle).
PropertyGrid has Properties like SourceConnection, OutputConnection etc....right now I am able to populate Connections in list box next to Source and Output Property.
Now my question to you guys is depending on Source Connection it should read that text file associated with connection manager. After validation it should pick header (first line of text file bases on record type) and write it into new file when task is executed. I have following code for your reference. Please let me know I am going in right direction or not..
What should go here ?
->Under Class A
public override DTSExecResult Execute(Connections connections, VariableDispenser variableDispenser, IDTSComponentEvents componentEvents, IDTSLogging log, object transaction)
{
//Some code to read file and write it into new file
return DTSExecResult.Success;
}
public const string Property_Task = "CustomErrorControl";
public const string Property_SourceConnection = "SourceConnection";
public void LoadFromXML(XmlElement node, IDTSInfoEvents infoEvents)
{
if (node.Name != Property_Task)
{
throw new Exception(String.Format("Invalid task element '{0}' in LoadFromXML.", node.Name));
}
else
{
try
{
_sourceConnectionId = node.Attributes.GetNamedItem(Property_SourceConnection).Value;
}
catch (Exception ex)
{
infoEvents.FireError(0, "LoadFromXML", ex.Message, "", 0);
}
}
}
public void SaveToXML(XmlDocument doc, IDTSInfoEvents infoEvents)
{
try
{
// // Create Task Element
XmlElement taskElement = doc.CreateElement("", Property_Task, "");
doc.AppendChild(taskElement);
// // Save source FileConnection
XmlAttribute sourcefileAttribute = doc.CreateAttribute(Property_SourceConnection);
sourcefileAttribute.Value = _sourceConnectionId;
taskElement.Attributes.Append(sourcefileAttribute);
}
catch (Exception ex)
{
infoEvents.FireError(0, "SaveXML", ex.Message, "", 0);
}
}
In UI Class there is OK Click event.
private void btnOK_Click(object sender, EventArgs e)
{
try
{
_taskHost.Properties[CustomErrorControl.Property_SourceConnection].SetValue(_taskHost, propertyGrid1.Text);
btnOK.DialogResult = DialogResult.OK;
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
#endregion
}
hello!
I am curious to know how I can find the length of a binary in Sql Server. The length doesn't work on binaries.
ie
select length(binary)
from Binarytable
Hi,
I have never use sql server to store binary data. Now, I need to store a .doc file into it. Which column type I should adopt?
In addition, could you provide me related articles to study?
Thanks,
Ricky.
I want to have an SSIS package that processes a file in the normal insert, update style. But at the end I want to store the file as a binary field to another table for archive purposes. I am having trouble finding a good way to do this. Any samples, ideas, or articles would be appreciated.
View 8 Replies View RelatedI have a filetable that contains a binary file. I need to do a selective read of the file stored in the file table. I can write a C# CLR function that will open the file, read n bytes the from a starting byte. Or I can write a SQL statement that reads the stream in the filetable into a VARBINARY variable using SUBSTRING beginning at the starting byte (offset from 1) for the same n bytes.
Both give me the same result. However, the SQL statement takes considerably longer to read. I know there is overhead in reading through SQL (interpreted language), but the difference in performance is substantial, and I can only attribute this performance degradation if SQL first tries to "load" the entire stream before it identifies the portion of the stream that it needs to read beginning at the starting byte offset.
I wonder if this is the case or if there is another option to read a stream from a filetable directly through SQL queries that is more efficient.
Hi All,
I need to read a csv file, which is in remote server using SQl Bulk Insert Command.
Can I read a file Which is in remote server using BULK INSERT.
Thank you.......
hello dear friends
I am trying to save a binary file to database with the following code:
public static void memorystreamToDb()
{
MemoryStream mst = new MemoryStream();
UnicodeEncoding u = new UnicodeEncoding();
string Textn = "Test";
byte[] b = u.GetBytes(Textn);
mst.Write(b ,0,Textn.Length );
BinaryReader reader = new BinaryReader(mst);
byte[] file = reader.ReadBytes((int)mst.Length);
using (SqlConnection connection = new SqlConnection("Some Connection String"))
{
SqlCommand command = new SqlCommand("INSERT INTO temp (examplefile) Values(@File)", connection);
command.Parameters.Add("@File", SqlDbType.Binary, file.Length).Value = file;
connection.Open();
command.ExecuteNonQuery();
}
reader.Close();
mst.Close();
}
or with the other method from a real file (not memory stream)
public static void Addfile(string path)
{
CommonMethods_class k = new CommonMethods_class();
byte[] file = GetFile(path);
using (SqlConnection connection = new SqlConnection(k.Get_connection_string()))
{
SqlCommand command = new SqlCommand("INSERT INTO temp (examplefile) Values(@File)", connection);
command.Parameters.Add("@File", SqlDbType.Binary, file.Length).Value = file;
connection.Open();
command.ExecuteNonQuery();
}
}
and after running each of them seams that the file have been saved; but I can not retrive the files. I have tried some solutions from msdn but inside the created file is empty. the point that i really look for it is to just working with memory not in the disk before saving. and then retriving each field that I want.
looking forward your points
thank you in advance
Hello all,
I am exporting data from AS/400 into an xml file and then importing the data from the xml file into an SQL database. I am getting the error: "The statement has been terminated. String or binary data would be truncated" when there are characters like "," or "&" in the xml. How can i solve this problem? Almost all my records have characters like that because they include comments and i can't disallow the users from entering these characters (especially ",").
Thanks,Mike.
I have been trying to store binary file in a folder from the SQL Server.
Here is the code I am using to do this but, it is not working. It doesn't show any error only shows 1 row(s) affected. The folder remains empty after running this query.
I have already configured server using
EXEC master.dbo.sp_configure 'show advanced options', 1
RECONFIGURE
SP_CONFIGURE 'Ole Automation Procedures', 1
GO
RECONFIGURE
GO
DECLARE @File VARBINARY(MAX),
[Code] .....
I am using FileUpload control in ASP.net 2.0 to upload files and store them into SQL server database as an image. I am fine with MS office files, image files and etc. We have Product Center (Proe) engineering software to configure parts and the files generated through this software have PLT extension when I store these files, the file type is Plian/text. I am using Fileupload.PostedFile.Content to get the file type. How can I store PLT, TIF files in SQL server? Please help.
View 12 Replies View RelatedI need to store several different types of documents (text, MS Word, PDF, etc.) in SQL Server 2005. What is the best way to store file attachments that have different MIME types?
Currently I'm using a table with a varbinary(max) column which works for binary files but not for text files. Do I need to have multiple columns in the table for different file types? Thanks in advance for your help.
CREATE TABLE dbo.[CM_Attachment] (
[Id] int IDENTITY (1, 1) NOT NULL ,
[Change_Request_Id] int NOT NULL ,
[Attachment] varbinary(max) not null,
[Created_Date] datetime NOT NULL DEFAULT GetDate() ,
[Created_By] varchar(30) NOT NULL ,
[Modified_Date] datetime NOT NULL ,
[Modified_By] varchar(30) NOT NULL
)
GO
INSERT INTO CM_Attachment(Change_Request_Id, Attachment, Created_By, Modified_Date, Modified_By)
SELECT 6, BulkColumn , '', GetDate(), ''
FROM Openrowset( Bulk 'C:TestingTest Doc #1.txt', SINGLE_CLOB) -- Does not work
-- FROM Openrowset( Bulk 'C:TestingTest Doc #2.xls', Single_Blob) -- Works
-- FROM Openrowset( Bulk 'C:TestingTest Doc #3.jpg', Single_Blob) -- Works
as ChangeRequestAttachment
I have a design oriented question for a system I am developing. Because of various business concerns and issues we have been moving towards as desing that brings files into the SQL 2005 system as binary columns in a database. These files will then be processed at a later time using SSIS into relation model tables.
Normally I would just have the process be files are placed on a FTP location (or other drive path) and a location is stored in the database versus the storing of them as binary rows in the database. Then later the SSIS package runs using the path information for the conneciton manager.
Based on the proposed binary design I have two questions.
1. Can anyone speak to the advantages, disadvantages, issues they have had, etc to the binary storage method?
2. Can anyone make a suggestion on how they would handle the pulling of the file out of SQL when the file is ready to process? Do you stream it to a file and rebuild it on the physical disk, to then just import it with a connection manager for the flat file structure.... or can you stream it directly into a conneciton manager that reads it like a flat file and parses the file without ever going to disk? Any information on suggested implementations would be helpful.
Thanks.
Hey everyone I've got this question that has me stuck for the last few days but its an important part of my website.....What I am trying to do is basicly have a user be able to upload a file, have that uploaded file plus some other info automaticly display on other parts of my site, and have a different user eventually be able to download that file....I have thought about allowing the file upload as a BLOB but still cannot find a proper way to execute this using VB, plus I have heard that this way of doing it is not reccommeneded cause databases were not designed to store large files like this, lots of articles recommened having the file upload to a Folder on your server then get the binary data for the file that can be placed in a database to refrence that particular file.....Well this also proves to be a lot harder then said here is what I got so far (written in C#) protected void UploadBtn_Click(object sender, EventArgs e)
{
if (FileUpLoad1.HasFile)
{
FileUpLoad1.SaveAs(@"C:Documents and SettingsAdamMy DocumentsVisual Studio 2005ProjectsWebsiteFiles" + FileUpLoad1.FileName);
Label1.Text = "File Uploaded: " + FileUpLoad1.FileName;
}
else
{
Label1.Text = "No File Uploaded.";
}
}
and here is the asp part of the code that goes with it<asp:FileUpLoad id="FileUpLoad1" runat="server" />
<asp:Button id="UploadBtn" Text="Upload File" OnClick="UploadBtn_Click" runat="server" Width="105px" />
<asp:Label ID="Label1" runat="server" Text=""></asp:Label>
Now from what I know is I need to get the binary of the file which I have read you can do with the Page.Request.Files statement but again not sure how I would impliment this. Does anyone have any suggestions on which way I should take when dealing with this should I try and just use the BLOB method or use the binary refrence method? and if so how would I impliment this, heck even some good tutorials on the subject would be great... Thanks.....Adam
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>
Is there a way to send binary file stored in SQL Server as email attachment without downloading it to the file system?
View 1 Replies View RelatedI have a well-structured but also very large binary data-set that is generated by a C++ application every five minutes. The data needs to be accessed by SQL applications. Since data is generated every five minutes, performance is key, both for write and read. The data set is about 500MB.If data is written to the file system, the write performance doesn't involve SQL server. For reading it, I have a CLR to read the portions of the data that I need based on offset and length. That works and is very fast. The problem is that data is stored in the file system, so it is not self-contained within the database.
A second option that I haven't explored yet, is to write the data into a table as VARBINARY(MAX). I would read the data using SUBSTRING with appropriate offset and length. Performance of SQL write/read of binary data of this size, and whether there is a third option I haven't thought off. I'm using SQL Server 2014.
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?
View 9 Replies View RelatedHi All,
I am not sure whether this is the right place to post this question. But I am unable to figure out what is the best solution to retrieve and display an image in a html file(stored in varbinary(max) column). I have a list of images in the file and I am supposed to display them. Can anybody please let me know what is the best way to do this?
Thanks a lot!!
Anyone reading XML disk-files into SQL Server?
I have a process that I may want to do this with.
It would be a stored procedure that would read the XML attributes into 2 tables, the number of attributes could be 1-N, so I thought XML would be a good choice. Also, one of the attributes could be up to 4000 characters. I think this may limit our options, can 100-150 4000 character strings be passed in a standard call to a query/proc in SQL?
Currently the client application makes round-trip network calls to save upwards of 100 pairs of data. 1 header row, and many detail rows. All within a transaction.
I think If we move an XML file to the SQL box, then do all the import/save work on the "Server" side it would be much better. Cutting the transaction time down a lot by not doing so many round-trips at network speed...
Thoughts?
Any one can help me how to read a file(.txt) with in the store procedure?
View 2 Replies View Relatedhi,
i have a requirement in which i need to read from a .ini file in the stored procedure of sql server 2K.
is it possible? i tried searching on google but i cannot find anything that can help.
Can any one tell me how to read the XML file using sql syntax.
I hav also posted my full requirement why I need to read the XML file in Transact_Sql forum list.