ABAP Select data from SAP table RANLBZA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RANLBZA table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to RANLBZA. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the RANLBZA table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_RANLBZA TYPE STANDARD TABLE OF RANLBZA,
      WA_RANLBZA TYPE RANLBZA,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <RANLBZA> TYPE RANLBZA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RANLBZA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RANLBZA
  INTO TABLE IT_RANLBZA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RANLBZA
*  INTO TABLE @DATA(IT_RANLBZA2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_RANLBZA INDEX 1 INTO DATA(WA_RANLBZA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RANLBZA ASSIGNING <RANLBZA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RANLBZA>-MANDT = 1.
<RANLBZA>-BUKRS = 1.
<RANLBZA>-ANLN1 = 1.
<RANLBZA>-ANLN2 = 1.
<RANLBZA>-AFABE = 1.

ENDLOOP.

LOOP AT IT_RANLBZA INTO WA_RANLBZA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RANLBZA-BDATU, sy-vline,
  WA_RANLBZA-ADATU, sy-vline,
  WA_RANLBZA-AFASL, sy-vline,
  WA_RANLBZA-NDJAR, sy-vline,
  WA_RANLBZA-NDPER, sy-vline,
  WA_RANLBZA-APROP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RANLBZA you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_RANLBZA TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_RANLBZA INTO WA_RANLBZA.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RANLBZA-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RANLBZA-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RANLBZA-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RANLBZA-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SCHRW
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RANLBZA-SCHRW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RANLBZA-SCHRW.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RANLBZA_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
AFABE TYPE STRING,
BDATU TYPE STRING,
ADATU TYPE STRING,
AFASL TYPE STRING,
NDJAR TYPE STRING,
NDPER TYPE STRING,
APROP TYPE STRING,
SCHRW TYPE STRING,
SCHRW_PROZ TYPE STRING,
KZ TYPE STRING,
T093BWAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RANLBZA_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_RANLBZA_STR-MANDT sy-vline 
WA_RANLBZA_STR-BUKRS sy-vline 
WA_RANLBZA_STR-ANLN1 sy-vline 
WA_RANLBZA_STR-ANLN2 sy-vline 
WA_RANLBZA_STR-AFABE sy-vline 
WA_RANLBZA_STR-BDATU sy-vline 
WA_RANLBZA_STR-ADATU sy-vline 
WA_RANLBZA_STR-AFASL sy-vline 
WA_RANLBZA_STR-NDJAR sy-vline 
WA_RANLBZA_STR-NDPER sy-vline 
WA_RANLBZA_STR-APROP sy-vline 
WA_RANLBZA_STR-SCHRW sy-vline 
WA_RANLBZA_STR-SCHRW_PROZ sy-vline 
WA_RANLBZA_STR-KZ sy-vline 
WA_RANLBZA_STR-T093BWAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.