topic Re: HI major diffrence in select-options and parameters in Application Development and Automation Discussions

HI major diffrence in select-options and parameters

Former Member — Thu, 23 Dec 2004 06:04:17 GMT

Hi,

Can any one explain me the major diffrence between select options and parameters.

I know that in select options we can give a range of values and in parameter one value.

Thanks

Re: HI major diffrence in select-options and parameters

Former Member — Thu, 23 Dec 2004 06:23:12 GMT

Hello Hari,

I'm not sure what you are expecting to be a major difference. But apart from what you have said,

1. Select-options is actually maintained as an internal table in the program, whereas a parameters is just like any other variable.

2. A select options is always used as a field, whereas, parameters can be used in case of a checkbox / radiobuttons too (I know this one sounds a but silly, but it is a difference nevertheless ).

For further information , the SAP Online Documentation can be helpful.

Regards,

Anand Mandalika.

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Re: HI major diffrence in select-options and parameters

Former Member — Tue, 28 Dec 2004 12:56:37 GMT

Hello Hari,

I would see following differences:

1. As you have mentioned, many values/ranges can be given in the SELECT-OPTIONS. However, the parameter can hold only one value.

2. In the run time, we see the data w.r.t a select option as an Internal table and Parameter may be accessed as a global variable.

3. Consider following statements:

a. select-options: s_matnr for mara-matnr no-extension no intervals.

b. parameters: P_MATNR like mara-matnr.

Both the statements look same on the selection screen.

consider the SQLs:

select * into corresponding fields of table g_t_mara

from mara

where

matnr in s_matnr.

and

select * into corresponding fields of table g_t_mara

from mara

where

matnr eq p_matnr.

both the SQLs give the same output if the user gives a material number on Selection screen.

If the user does NOT give any input in selection screen, the first SQL will fetch all data from DB, whereas the SQL with the PARAMETER will fail.

So I think we should keep in mind the requirement and code accordingly.

I hope this helps you.

Best Regards,

Murugesh AS

Re: HI major diffrence in select-options and parameters

ssimsekler — Tue, 28 Dec 2004 15:11:21 GMT

I believe the most impressing difference is what Murugesh has already stated at 3 . While using in a statement defining conditions, select-option will say "all entries" if it is empty. That is why, there are options as "NO-EXTENSION" "NO INTERVALS" which make a select-option seem like a parameter, but just it seems however acts as a select-option as expected.

e.g.


SELECT-OPTIONS s_selobj FOR p0001-pernr 
               NO-EXTENSION NO INTERVALS .

Obviously, the second favour is that a select-option gives the opportunity to make complex selections as including or excluding sets and/or ranges.

*--Serdar