SF_STRING_CHECK SAP Function module - Comparison of character strings

SF_STRING_CHECK is a standard SAP function module available within R/3 SAP systems depending on your version and release level. Below is the pattern details for this FM showing its interface including any import and export parameters, exceptions etc as well as any documentation contributions (Comments) specific to the object.

See here to view full function module documentation and code listing, simply by entering the name SF_STRING_CHECK into the relevant SAP transaction such as SE37 or SE80.

Associated Function Group: SFAR
Released Date: Not Released
Processing type: Normal fucntion module

Pattern for FM SF_STRING_CHECK - SF STRING CHECK

CALL FUNCTION 'SF_STRING_CHECK' "Comparison of character strings
  EXPORTING
    attribute_type =            " tfia-datatyp  Data type of attribute (CHAR)
    frontier_type =             " fist-hits     Defined interval for value restric
    single_attribute_value =    " sfiwp-wordf   String (possibly attribute value s
    value_high =                " atres-at_val  upper limit for interval entry
    value_low =                 " atres-at_val  lower limit for interval entry
  IMPORTING
    checked_value =             " sfiwp-wordf   validated attribute value string
  EXCEPTIONS
    ATTRIBUTE_TYPE_WRONG = 1    "               wrong attribute category (that is,
    INTERVAL_TYPE_INVALID = 2   "               invalid interval category
    .  "  SF_STRING_CHECK

ABAP code example for Function Module SF_STRING_CHECK

The ABAP code below is a full code listing to execute function module SF_STRING_CHECK including all data declarations. The code uses the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the original method of declaring data variables up front. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8).

DATA:
ld_checked_value  
 
 TYPE SFIWP-WORDF
.

 

SELECT single DATATYP 
  FROM TFIA 
  INTO @DATA(ld_attribute_type).



DATA(ld_frontier_type) = 123 
 

SELECT single WORDF 
  FROM SFIWP 
  INTO @DATA(ld_single_attribute_value).



DATA(ld_value_high) = some text here


DATA(ld_value_low) = some text here
.

CALL FUNCTION 'SF_STRING_CHECK'
  EXPORTING
    attribute_type =             ld_attribute_type
    frontier_type =              ld_frontier_type
    single_attribute_value =     ld_single_attribute_value
    value_high =                 ld_value_high
    value_low =                  ld_value_low
  IMPORTING
    checked_value =              ld_checked_value
  EXCEPTIONS
    ATTRIBUTE_TYPE_WRONG =       1
    INTERVAL_TYPE_INVALID =      2
    .  "  SF_STRING_CHECK

IF SY-SUBRC EQ 0.
  "All OK
ELSEIF SY-SUBRC EQ 1. "Exception
  "Add code for exception here
ELSEIF SY-SUBRC EQ 2. "Exception
  "Add code for exception here
ENDIF.

ABAP code to compare 7.40 inline data declaration with original syntax

The below ABAP code uses the older none in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. It may also be useful if you are using an older version of SAP as some of the newer syntax above, such as the @DATA is not available until 4.70 EHP 8.

DATA:

ld_checked_value
 
 TYPE SFIWP-WORDF ,
ld_attribute_type
 
 TYPE TFIA-DATATYP ,
ld_frontier_type
 
 TYPE FIST-HITS ,
ld_single_attribute_value
 
 TYPE SFIWP-WORDF ,
ld_value_high
 
 TYPE ATRES-AT_VAL ,
ld_value_low
 
 TYPE ATRES-AT_VAL .



SELECT single DATATYP 
  FROM TFIA 
  INTO ld_attribute_type.


ld_frontier_type = 123 

SELECT single WORDF 
  FROM SFIWP 
  INTO ld_single_attribute_value.


ld_value_high = some text here

ld_value_low = some text here