Use sp_drv_text_locator_bytelength to find the byte length of a LOB column referenced by a text locator. sp_drv_text_locator_bytelength accesses the Transact-SQL function data_length.
sp_drv_image_locator_bytelength locator, data_length
locator – a text_locator that references the text column to manipulate.
data_length – an integer specifying the byte length of the text column referenced by locator.
None.
