Only checking the one limit of select options

Question

in this query,i am validating the field on the selection screen for the select options.
but its validating only lower value and not the higher value.
please guide me.
SELECT LAND1
       ZREGION1
       FROM ZBWCNTRY
       INTO CORRESPONDING FIELDS OF TABLE IT_ZBWCNTRY UP TO 1000 ROWS
       where zregion1 in s_regn1.
if sy-subrc NE 0.
message e000(zbx).
endif.

Answer 1

Hi ,
try this.
SELECT LAND1
ZREGION1
FROM ZBWCNTRY
INTO CORRESPONDING FIELDS OF TABLE IT_ZBWCNTRY UP TO 1000 ROWS
where zregion1 =  s_regn1-low.
if sy-subrc NE 0.
message e000(zbx).
else.
SELECT LAND1
ZREGION1
FROM ZBWCNTRY
INTO CORRESPONDING FIELDS OF TABLE IT_ZBWCNTRY UP TO 1000 ROWS
where zregion1 = s_regn1-high.
if sy-subrc NE 0.
message e000(zbx).
endif.
endif.
Hope this will help.
Regards,
Rohan.