Check existence of a table line
Check the existence of a line in an internal table,
use the function line_exists( ) within an if-clause.
IF line_exists( accounts[ id = 4711 ] ).
"line has been found
ENDIF.Old style:
READ TABLE accounts WITH KEY id = 4711 TRANSPORTING NO FIELDS.
IF sy-subrc = 0.
"line has been found
ENDIF.