isc_blob_lookup_desc

function isc_blob_lookup_desc(

  status_vector: PISC_STATUS;

  db_handle: PISC_DB_HANDLE;

  trans_handle: PISC_TR_HANDLE;

  table_name: PChar;

  column_name: PChar;

  descriptor: PISC_BLOB_DESC;

  global: PUChar

):ISC_STATUS;