Read(Byte[],Int32,Int32) Method

Reads data into the application provided buffer and advances the current position of the TdStream object.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Public Overloads Function Read( _
   ByVal buffer() As Byte, _
   ByVal offset As Integer, _
   ByVal count As Integer _
) As Integer

'Usage
 
Dim instance As TdBlob
Dim buffer() As Byte
Dim offset As Integer
Dim count As Integer
Dim value As Integer
 
value = instance.Read(buffer, offset, count)

public int Read( 
   byte[] buffer,
   int offset,
   int count
)

public:
int Read( 
   array<byte>^ buffer,
   int offset,
   int count
)

Parameters

buffer: Byte array to read data into.
offset: The location within the buffer to read data into.
count: Number of bytes to read into the buffer.

Return Value

Returns the number of bytes read from the Advanced SQL Engine and written into the which should be equal or less than .

Exceptions

Exception	Description
System.ArgumentNullException	buffer is null.
System.ArgumentOutOfRangeException	count or offset is negative or the sum of offset and count is larger than the buffer length.
System.InvalidOperationException	The `TdBlob` is null or TdConnection is closed.
System.ObjectDisposedException	The `TdBlob` or TdStream is closed / disposed.
TdException	The Advanced SQL Engine returned an error -or- the .NET Data Provider for Teradata detected an error.

Remarks

The .NET Data Provider for Teradata reads the BLOB from the Advanced SQL Engine and transfers the Blob content to the application provided buffer.

Requirements

Target Platforms: Windows 8.1, Windows 10, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019

Reference

TdBlob Class
TdBlob Members
Overload List