The T-code for creation of standard text is SO10
there r two ways of transfering of standard text

By using standard program RSTXSCRP download/upload

or

By using standard program RSTXTRAN 
first transfer to correction, transport request is assigned 
to it.
go to T-code SE09 to transport that request.

To create standard text in SAP script, there is an option 
to insert standard text in the text element screen. click 
on insert--->text--->standard and give the text name, text 
id and language as input parameters and text object is 
always "TEXT" for standard SAP script texts. this inserts 
standard text in the script.
To transport standard text from one client to another, we 
could probably use SCC1 transaction in the target client 
and give the source client and tranport request for copying
(not sure about this).

Using itcsy structure.This Structure has two fields
       1) name
       2) value

systax. perform <pername> in program <progname>
                   using <field>
                   changing <field>.

perform <form-name> in program <report-name>
                               using value1
                               changing value2.

i tried with this but i am not getting proper if u then sen
  to this plz

go to se 71 and give form name 
and go to utilities and clicked on active debugger-->

or RSTXLDMC-->executable program for debugging.

Go to SE71 and give form name
select utilities option in menubar and activate the debugger
go to SE38 and execute the print program.
it automatically goes to debugging mode

or

excecute the predefined ececutable program 
RSTXDBUG

Tcode SWO1->buisiness object repository

sekect the application and can see the list of BAPI 
available with documentation

&variable(C)& for compressing the blanks of that variable.

PARAMETERS var TYPE dobj 
           MATCHCODE OBJECT objname

create the search help objname

AL11

File port is used in EDI whereas the TRFC port is used in 
ALE for IDOCs.

with best wishes,
bhai.....

badi is objective oriented but user exit is not

In USEREXIT u code in the standard SAP program, hence any 
updation in the version of the standard program will lead 
to the loss of ur coding. But same is not the case of BADI. 
Here the code remains outside the standard program. 
You need to search for the suitable BADI as ur requirement 
and then do the coding and plug in the program. 

USEREXIT - It is also a program enhancement technique. here 
also u need to find suitable userexit and code in ur 
program.

BADI is OOPs concept...but User Exit not
BADI can be used more than once... but User Exit can be 
used only one time
BADI code remains outside the standard program. 
User Exit - code will be included in standard program

Tcode - WE64 here you can find all the process 
codes,message type and function module assigned to that 
process code.
Process code for Quotation - SD12

for presentation server -- gui_upload
for application server -- open_dataset

we cannot use data type "float " to define parameters.

Type F cannot declared in parameters.But we can declare
packed decimals 
Ex: data : m type P decimals 2

String type also not allowed

Append Structure
Customizing Include

for reusability perpose lables can be used in scripts