varbinary

问题 I have a C# web application that serves as a passthrough to SQL Server; requests that detail SQL Server commands come in, we parse the request, generate the necessary .Net types and then use them to execute SqlCommands and such. The upshot of that is that the C# web application needs to be very flexible and really can't make too many assumptions about what a request "should" look like. I recently solved a problem that was causing exceptions to be thrown when a table-valued parameter contained

问题 Using c#, I created a blank picture box control and a graphics object. I instantiated the graphics object by pictureBoxControl.CreateGraphics(). I allow the user to then draw on the picture box with the mouse. I'm trying to save the graphics object to a varbinary column in the database, but I can't figure that out. Can somebody please help? 来源： https://stackoverflow.com/questions/35181621/save-a-graphics-object-to-a-varbinary-db-column-c-sharp

问题 I was creating an application in which we have to store files in data base. So i have chosen varbinary for it. Now we need to configure Full Text Search on this column. But I am able to understand how varbinary data type will handle FTS. Because FTS works on text data type. 回答1: Check this document and this document in MSDN To create a full-text index on a varbinary(max) column, the Full-Text Engine needs access to the file extensions of the documents in the varbinary(max) column. This

问题 I'm storing data in a varbinary(max) column and, for client performance reasons, chunking writes through the ".WRITE()" function using SQL Server 2005. This works great but, due to the side effects, I want to avoid the varbinary column dynamically sizing during each append. What I'd like to do is optimize this by pre-allocating the varbinary column to the size I want. For example if I'm going to drop 2MB into the column I would like to 'allocate' the column first, then .WRITE the real data

问题 I ask this question as a followup of this question. A solution that uses bcp and xp_cmdshell, that is not my desired solution, has been posted here. I am new to c# (since I am a Delphi developer) anyway I was able to create a simple CLR stored procedure by following a tutorial. My task is to move a file from the client file system to the server file system (the server can be accessed using remote IP, so I cannot use a shared folder as destination, this is why I need a CLR stored procedure).

问题 I'm using a C# application and it looks like its ready to insert the image to my database, but my stored procedure spits out an implicit conversion error. I read the image into a byte array and pass the byte array to my stored procedure. It expects a varbinary parameter, hence the error. So I alter my stored procedure to be: ALTER PROCEDURE insertPlayerImage @playerID varchar(9), @profileImage varchar(max), @pending char(1) AS CONVERT(varbinary(max), @profileImage) INSERT INTO PlayerImage

问题 The title speaks for itself. I'm dealing with files/data near 2MB in size. 回答1: If you need the bytes in an array, then all the methods are pretty much going to be the same, since you have to stream all the bytes from the result stream into the array (the SqlClient classes are going to do this for you). It doesn't matter if you have a varbinary output parameter on a stored procedure or a field in a database table, although the stored procedure will be slightly faster since you don't have

问题 This is a followup to my previous question, which got solved (thank you for that) but now I am stuck at another error. I'm trying to save an image in my database (called 'Afbeelding'), for that I made a table which excists of: id: int souce: varbinary(max) I then created a wcf service to save an 'Afbeelding' to the database. private static DataClassesDataContext dc = new DataClassesDataContext(); [OperationContract] public void setAfbeelding(Afbeelding a) { //Afbeelding a = new Afbeelding();

问题 I have an Access front end that links to a SQL Server backend. There are 3 fields in a table that I am trying to convert to text from the backend: o_name varbinary(2000) O_PropertyBinary1 varbinary(2000) O_PropertyBinary2 image I can convert the o_name field using: convert(varchar([max]),[O_Name]) and that works fine. e.g. 4153534554 = ASSET However, what can I use for the other two fields, as it seems I can't convert an image field and converting the O_PropertyBinary1 comes out with garbage

问题 I've just discovered that all but VAR data types do not vary their LENGTH s. This strikes me as extremely inefficient since there may be INT fields like an autoincrement PRIMARY that never change where a 1 in a BIGINT column will take the full 8 bytes. I have many columns that won't change once they're inserted but have the potential to be large. Instead of using all BIGINT columns, I'd like to use VARBINARY instead. I want to manipulate the data as an int in c++ yet store it as VARBINARY in