Answer / sudhakar

select-options store in internal table whereas parameters
will store in single field.

Answer / pratap

in s-o : we can provide range
in Para : it is not possible

Answer / sudhir

In select option through user put input data in range.
and select option create internal table with option, low,
high, sign.

parameter through can not provde input in range. It can't
occupy memory.

Answer / m.kmart

Select-options accepts rage of values.
we can make select-options behave like paramenters by using
additon "no intervals", but vice versa is not possible.

Answer / kris_p2006

and also
If we do not provide any value for SELECT-OPTIONS in
selection screen, it displays all the values.
whereas for PARAMETERS if we not provide any value it takes
as blank value and displays nothing

Answer / jagadish

parameter : 1) parameter is a key word which is used to accept the single value at run time.
2).without input value we cannot execute the parameters.
3).name of the parameter should not exceed 8 characters.
syntax: Parameters : p_a type I.
to pass the default values to the parameter
parameters : p_a type I default value 10.

to make the parameter value as mandatory we have to use the obligatory keyword.
parameters : p_a type I obligatory.
NOTE: we cannot write floating type values under parameter.

DATA : A type I,
B type I,
C type I.
parameters :P_ A type I DEFAULT 100, * obligatory
P_B type I DEFAULT 200.*obligatory

A=P_A.
B=P_B.
C=A+B.
write C.

Select-option : select option is a keyword which is used to accept single value,multiple single values,ranges,multiple ranges at run time
syntax: DATA : L_VBELN TYPE VBELN_VA.
select-options: S_VBELN for L_VBELN.
whenever we create a select option sysytem will create a internal table with header line with 4 fields.it will used to select and deselect the ranges.
LOW,SIGN,HIGH,OPTION.
name of the select option doesnt increse 8 characters.

NOTE : with out input value we can select options and it will fetch the entire data of the table..

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