ABAP Select data from SAP table AFWBM_BASIC into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP AFWBM_BASIC 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 AFWBM_BASIC. 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 AFWBM_BASIC 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_AFWBM_BASIC TYPE STANDARD TABLE OF AFWBM_BASIC,
      WA_AFWBM_BASIC TYPE AFWBM_BASIC,
      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: <AFWBM_BASIC> TYPE AFWBM_BASIC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AFWBM_BASIC
*  INTO TABLE @DATA(IT_AFWBM_BASIC2).
*--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_AFWBM_BASIC INDEX 1 INTO DATA(WA_AFWBM_BASIC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AFWBM_BASIC>-MANDT = 1.
<AFWBM_BASIC>-BMID = 1.
<AFWBM_BASIC>-VALDATE = 1.
<AFWBM_BASIC>-UPTSTP = 1.
<AFWBM_BASIC>-STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AFWBM_BASIC-UPUSER, sy-vline,
  WA_AFWBM_BASIC-BMCATEGORY, sy-vline,
  WA_AFWBM_BASIC-GUID_REASON, sy-vline,
  WA_AFWBM_BASIC-BM_IDX, sy-vline,
  WA_AFWBM_BASIC-BM_CURR, sy-vline,
  WA_AFWBM_BASIC-BM_CURRCATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AFWBM_BASIC 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_AFWBM_BASIC 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_AFWBM_BASIC INTO WA_AFWBM_BASIC.


*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 BM_RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFWBM_BASIC-BM_RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFWBM_BASIC-BM_RANL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALFAN, internal->external for field BMPKEYFIG
CALL FUNCTION 'CONVERSION_EXIT_ALFAN_OUTPUT'
  EXPORTING
    input =                      WA_AFWBM_BASIC-BMPKEYFIG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFWBM_BASIC-BMPKEYFIG.
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_AFWBM_BASIC_STR, 
MANDT TYPE STRING,
BMID TYPE STRING,
VALDATE TYPE STRING,
UPTSTP TYPE STRING,
STATUS TYPE STRING,
UPUSER TYPE STRING,
BMCATEGORY TYPE STRING,
GUID_REASON TYPE STRING,
BM_IDX TYPE STRING,
BM_CURR TYPE STRING,
BM_CURRCATE TYPE STRING,
BM_FIXRATE TYPE STRING,
BM_RATE_METHOD TYPE STRING,
BM_VARRATE TYPE STRING,
BM_RANL TYPE STRING,
BM_OBJNR TYPE STRING,
BM_RHANDPL TYPE STRING,
BMSICHID TYPE STRING,
BMPH TYPE STRING,
BMPHNODE TYPE STRING,
BMPKEYFIG TYPE STRING,
BMFIXPERIODVAL TYPE STRING,
BMFIXPERIODTYP TYPE STRING,
BMFACCAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AFWBM_BASIC_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_AFWBM_BASIC_STR-MANDT sy-vline 
WA_AFWBM_BASIC_STR-BMID sy-vline 
WA_AFWBM_BASIC_STR-VALDATE sy-vline 
WA_AFWBM_BASIC_STR-UPTSTP sy-vline 
WA_AFWBM_BASIC_STR-STATUS sy-vline 
WA_AFWBM_BASIC_STR-UPUSER sy-vline 
WA_AFWBM_BASIC_STR-BMCATEGORY sy-vline 
WA_AFWBM_BASIC_STR-GUID_REASON sy-vline 
WA_AFWBM_BASIC_STR-BM_IDX sy-vline 
WA_AFWBM_BASIC_STR-BM_CURR sy-vline 
WA_AFWBM_BASIC_STR-BM_CURRCATE sy-vline 
WA_AFWBM_BASIC_STR-BM_FIXRATE sy-vline 
WA_AFWBM_BASIC_STR-BM_RATE_METHOD sy-vline 
WA_AFWBM_BASIC_STR-BM_VARRATE sy-vline 
WA_AFWBM_BASIC_STR-BM_RANL sy-vline 
WA_AFWBM_BASIC_STR-BM_OBJNR sy-vline 
WA_AFWBM_BASIC_STR-BM_RHANDPL sy-vline 
WA_AFWBM_BASIC_STR-BMSICHID sy-vline 
WA_AFWBM_BASIC_STR-BMPH sy-vline 
WA_AFWBM_BASIC_STR-BMPHNODE sy-vline 
WA_AFWBM_BASIC_STR-BMPKEYFIG sy-vline 
WA_AFWBM_BASIC_STR-BMFIXPERIODVAL sy-vline 
WA_AFWBM_BASIC_STR-BMFIXPERIODTYP sy-vline 
WA_AFWBM_BASIC_STR-BMFACCAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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