ABAP Select data from SAP table AFFLDGET into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP AFFLDGET 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 AFFLDGET. 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 AFFLDGET 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_AFFLDGET TYPE STANDARD TABLE OF AFFLDGET,
      WA_AFFLDGET TYPE AFFLDGET,
      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: <AFFLDGET> TYPE AFFLDGET.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AFFLDGET
*  INTO TABLE @DATA(IT_AFFLDGET2).
*--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_AFFLDGET INDEX 1 INTO DATA(WA_AFFLDGET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AFFLDGET>-MANDT = 1.
<AFFLDGET>-AUFPL = 1.
<AFFLDGET>-APLZL = 1.
<AFFLDGET>-PLNTY = 1.
<AFFLDGET>-PLNNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AFFLDGET-PLNAL, sy-vline,
  WA_AFFLDGET-PLNFL, sy-vline,
  WA_AFFLDGET-ZAEHL, sy-vline,
  WA_AFFLDGET-AENNR, sy-vline,
  WA_AFFLDGET-FLGAT, sy-vline,
  WA_AFFLDGET-BEZFL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AFFLDGET 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_AFFLDGET 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_AFFLDGET INTO WA_AFFLDGET.


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

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

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

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

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

*Conversion exit ISOLA, internal->external for field TXTSP
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_AFFLDGET-TXTSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFFLDGET-TXTSP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR1
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_AFFLDGET-VORNR1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFFLDGET-VORNR1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR2
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_AFFLDGET-VORNR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFFLDGET-VORNR2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFFLDGET-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFFLDGET-AUFNR.
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_AFFLDGET_STR, 
MANDT TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
PLNFL TYPE STRING,
ZAEHL TYPE STRING,
AENNR TYPE STRING,
FLGAT TYPE STRING,
BEZFL TYPE STRING,
BKNT1 TYPE STRING,
BKNT2 TYPE STRING,
LTXA1 TYPE STRING,
TXTSP TYPE STRING,
LOSVN TYPE STRING,
LOSBS TYPE STRING,
BSCHL1 TYPE STRING,
BSCHL2 TYPE STRING,
AUSCHL TYPE STRING,
OBJNR TYPE STRING,
OBJTYPE TYPE STRING,
CH_PROC TYPE STRING,
VORNR1 TYPE STRING,
VORNR2 TYPE STRING,
TXTKZ TYPE STRING,
INDBT TYPE STRING,
AUFNR TYPE STRING,
FLG_LOE TYPE STRING,
COMP_RES TYPE STRING,
VSNMR TYPE STRING,
VBKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AFFLDGET_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_AFFLDGET_STR-MANDT sy-vline 
WA_AFFLDGET_STR-AUFPL sy-vline 
WA_AFFLDGET_STR-APLZL sy-vline 
WA_AFFLDGET_STR-PLNTY sy-vline 
WA_AFFLDGET_STR-PLNNR sy-vline 
WA_AFFLDGET_STR-PLNAL sy-vline 
WA_AFFLDGET_STR-PLNFL sy-vline 
WA_AFFLDGET_STR-ZAEHL sy-vline 
WA_AFFLDGET_STR-AENNR sy-vline 
WA_AFFLDGET_STR-FLGAT sy-vline 
WA_AFFLDGET_STR-BEZFL sy-vline 
WA_AFFLDGET_STR-BKNT1 sy-vline 
WA_AFFLDGET_STR-BKNT2 sy-vline 
WA_AFFLDGET_STR-LTXA1 sy-vline 
WA_AFFLDGET_STR-TXTSP sy-vline 
WA_AFFLDGET_STR-LOSVN sy-vline 
WA_AFFLDGET_STR-LOSBS sy-vline 
WA_AFFLDGET_STR-BSCHL1 sy-vline 
WA_AFFLDGET_STR-BSCHL2 sy-vline 
WA_AFFLDGET_STR-AUSCHL sy-vline 
WA_AFFLDGET_STR-OBJNR sy-vline 
WA_AFFLDGET_STR-OBJTYPE sy-vline 
WA_AFFLDGET_STR-CH_PROC sy-vline 
WA_AFFLDGET_STR-VORNR1 sy-vline 
WA_AFFLDGET_STR-VORNR2 sy-vline 
WA_AFFLDGET_STR-TXTKZ sy-vline 
WA_AFFLDGET_STR-INDBT sy-vline 
WA_AFFLDGET_STR-AUFNR sy-vline 
WA_AFFLDGET_STR-FLG_LOE sy-vline 
WA_AFFLDGET_STR-COMP_RES sy-vline 
WA_AFFLDGET_STR-VSNMR sy-vline 
WA_AFFLDGET_STR-VBKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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