Name 

Description 

 

Read 

Reads up to Count bytes from the current position in the field's data into Buffer. 

 

Seek 

Resets the current position of the TBlobStream object. 

 

Truncate 

Discards all data in the BLOB field from the current position on. 

 

Write 

Writes Count bytes from Buffer to the current position in the field and updates the current position by Count bytes.