loop for update files

hi, i am new in clarion, i need help to write code for made changes in my
database with loop and put command, i try with loop and add command and it
works but don't wotks with command put, here is my sample code

SET(Strogaev)     ----> database
LOOP I#= 1 TO LOC:BrojPolica   ----> local var
PUT(Strogaev) ----> change record
--> next four rows are my database fields with
changed values from my form


STR:Strogapri = STR:Strogapri
STR:Strogadok = STR:Strogadok
STR:Datumz = STR:Datumz
STR:Strogaozn = STR:Strogaozn

NEXT(Strogaev)
END
BUILD(Strogaev)

please correct my embed code,

thanks

It's not clear what you are trying to do, however, you normally have
the PUT line after you make the data changes and not before.  Also, you
need to test your NEXT statement to ensure you are not trying to read
beyond the EOF (If errorcode() then break. <if using legacy> ).