CHANGEDOCU_TABKEYLEN_GET SAP Function module

CHANGEDOCU_TABKEYLEN_GET 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 CHANGEDOCU_TABKEYLEN_GET into the relevant SAP transaction such as SE37 or SE80.

Associated Function Group: SCD8
Released Date: Not Released
Processing type: Normal fucntion module

Pattern for FM CHANGEDOCU_TABKEYLEN_GET - CHANGEDOCU TABKEYLEN GET

CALL FUNCTION 'CHANGEDOCU_TABKEYLEN_GET' "
  EXPORTING
    iv_tabname =                " cdpos-tabname  Table Name
  IMPORTING
    ev_keylength =              " i
  EXCEPTIONS
    TABNAME_EMPTY = 1           "
    NAMETAB_ERROR = 2           "
    .  "  CHANGEDOCU_TABKEYLEN_GET

ABAP code example for Function Module CHANGEDOCU_TABKEYLEN_GET

The ABAP code below is a full code listing to execute function module CHANGEDOCU_TABKEYLEN_GET 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_ev_keylength  
 
 TYPE I
.

 

SELECT single TABNAME 
  FROM CDPOS 
  INTO @DATA(ld_iv_tabname).

.

CALL FUNCTION 'CHANGEDOCU_TABKEYLEN_GET'
  EXPORTING
    iv_tabname =                 ld_iv_tabname
  IMPORTING
    ev_keylength =               ld_ev_keylength
  EXCEPTIONS
    TABNAME_EMPTY =              1
    NAMETAB_ERROR =              2
    .  "  CHANGEDOCU_TABKEYLEN_GET

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_ev_keylength
 
 TYPE I ,
ld_iv_tabname
 
 TYPE CDPOS-TABNAME .



SELECT single TABNAME 
  FROM CDPOS 
  INTO ld_iv_tabname.