ABAP Select data from SAP table BAPI_AFFH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_AFFH
*  INTO TABLE @DATA(IT_BAPI_AFFH2).
*--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_BAPI_AFFH INDEX 1 INTO DATA(WA_BAPI_AFFH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_AFFH>-ROUTING_NO = 1.
<BAPI_AFFH>-PRT_ITEM_PZLFH = 1.
<BAPI_AFFH>-DEL_IND = 1.
<BAPI_AFFH>-INACTIVE = 1.
<BAPI_AFFH>-CREATE_DAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_AFFH-CREATOR, sy-vline,
  WA_BAPI_AFFH-CH_ON, sy-vline,
  WA_BAPI_AFFH-CHANGED_BY, sy-vline,
  WA_BAPI_AFFH-TYPE_OBJTY, sy-vline,
  WA_BAPI_AFFH-ID, sy-vline,
  WA_BAPI_AFFH-TYPE_PLNTY_KEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_AFFH 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_BAPI_AFFH 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_BAPI_AFFH INTO WA_BAPI_AFFH.


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

*Conversion exit CUNIT, internal->external for field START_OFFSET_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-START_OFFSET_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-START_OFFSET_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field END_OFFSET_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-END_OFFSET_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-END_OFFSET_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DURATIONUN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-DURATIONUN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-DURATIONUN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_MGEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-UNIT_MGEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-UNIT_MGEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_MGSOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-UNIT_MGSOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-UNIT_MGSOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_MGISTEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-UNIT_MGISTEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-UNIT_MGISTEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_MGRSTEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-UNIT_MGRSTEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-UNIT_MGRSTEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_MGAUSEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-UNIT_MGAUSEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-UNIT_MGAUSEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_EWEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-UNIT_EWEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-UNIT_EWEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_EWSOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-UNIT_EWSOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-UNIT_EWSOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_EWISTEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-UNIT_EWISTEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-UNIT_EWISTEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_EWRSTEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-UNIT_EWRSTEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-UNIT_EWRSTEH.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CHANGE_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_AFFH-CHANGE_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_AFFH-CHANGE_NO.
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_BAPI_AFFH_STR, 
ROUTING_NO TYPE STRING,
PRT_ITEM_PZLFH TYPE STRING,
DEL_IND TYPE STRING,
INACTIVE TYPE STRING,
CREATE_DAT TYPE STRING,
CREATOR TYPE STRING,
CH_ON TYPE STRING,
CHANGED_BY TYPE STRING,
TYPE_OBJTY TYPE STRING,
ID TYPE STRING,
TYPE_PLNTY_KEY TYPE STRING,
PLAN_NUMBER TYPE STRING,
PRT_ITEM_PZLFH_KEY TYPE STRING,
COUNTER_ZAEHL_KEY TYPE STRING,
OBJECT TYPE STRING,
COUNTER_APLZL TYPE STRING,
ITEM TYPE STRING,
OBJECT_NO TYPE STRING,
CTRL_KEY TYPE STRING,
CREATE_LOAD_RECS TYPE STRING,
START_REF_DATE TYPE STRING,
START_OFFSET TYPE STRING,
START_OFFSET_UNIT TYPE STRING,
END_REF_DATE TYPE STRING,
END_OFFSET TYPE STRING,
END_OFFSET_UNIT TYPE STRING,
START_FSFHD TYPE STRING,
EARL_START TYPE STRING,
FINISH TYPE STRING,
EARLY_END TYPE STRING,
START_SSFHD TYPE STRING,
PLAN_START TYPE STRING,
FINISH_SEFHD TYPE STRING,
PLAN_FINSH TYPE STRING,
START_ISFHD TYPE STRING,
ACT_START TYPE STRING,
FINISH_IEFHD TYPE STRING,
ACT_FINISH TYPE STRING,
DURATION TYPE STRING,
DURATIONUN TYPE STRING,
UNIT_MGEINH TYPE STRING,
QUANTITY_MGVGW TYPE STRING,
UNIT_MGSOLEH TYPE STRING,
QUANT TYPE STRING,
UNIT_MGISTEH TYPE STRING,
ACTUAL_MGIST TYPE STRING,
UNIT_MGRSTEH TYPE STRING,
REMAINING_MGRST TYPE STRING,
UNIT_MGAUSEH TYPE STRING,
QUANTITY_MGAUS TYPE STRING,
FORMULA_TOT_QTY TYPE STRING,
UNIT_EWEINH TYPE STRING,
USAGEVALUE_EWWGW TYPE STRING,
UNIT_EWSOLEH TYPE STRING,
USAGEVALUE_EWSOL TYPE STRING,
UNIT_EWISTEH TYPE STRING,
ACTUAL_EWIST TYPE STRING,
UNIT_EWRSTEH TYPE STRING,
REMAINING_EWRST TYPE STRING,
FORMULA_TOT_USAGE TYPE STRING,
LANGU TYPE STRING,
STD_TEXT_KEY TYPE STRING,
PRT_TEXT TYPE STRING,
OBJECTTYPE TYPE STRING,
CH_PROC_OP TYPE STRING,
CHANGE_NO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_AFFH_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_BAPI_AFFH_STR-ROUTING_NO sy-vline 
WA_BAPI_AFFH_STR-PRT_ITEM_PZLFH sy-vline 
WA_BAPI_AFFH_STR-DEL_IND sy-vline 
WA_BAPI_AFFH_STR-INACTIVE sy-vline 
WA_BAPI_AFFH_STR-CREATE_DAT sy-vline 
WA_BAPI_AFFH_STR-CREATOR sy-vline 
WA_BAPI_AFFH_STR-CH_ON sy-vline 
WA_BAPI_AFFH_STR-CHANGED_BY sy-vline 
WA_BAPI_AFFH_STR-TYPE_OBJTY sy-vline 
WA_BAPI_AFFH_STR-ID sy-vline 
WA_BAPI_AFFH_STR-TYPE_PLNTY_KEY sy-vline 
WA_BAPI_AFFH_STR-PLAN_NUMBER sy-vline 
WA_BAPI_AFFH_STR-PRT_ITEM_PZLFH_KEY sy-vline 
WA_BAPI_AFFH_STR-COUNTER_ZAEHL_KEY sy-vline 
WA_BAPI_AFFH_STR-OBJECT sy-vline 
WA_BAPI_AFFH_STR-COUNTER_APLZL sy-vline 
WA_BAPI_AFFH_STR-ITEM sy-vline 
WA_BAPI_AFFH_STR-OBJECT_NO sy-vline 
WA_BAPI_AFFH_STR-CTRL_KEY sy-vline 
WA_BAPI_AFFH_STR-CREATE_LOAD_RECS sy-vline 
WA_BAPI_AFFH_STR-START_REF_DATE sy-vline 
WA_BAPI_AFFH_STR-START_OFFSET sy-vline 
WA_BAPI_AFFH_STR-START_OFFSET_UNIT sy-vline 
WA_BAPI_AFFH_STR-END_REF_DATE sy-vline 
WA_BAPI_AFFH_STR-END_OFFSET sy-vline 
WA_BAPI_AFFH_STR-END_OFFSET_UNIT sy-vline 
WA_BAPI_AFFH_STR-START_FSFHD sy-vline 
WA_BAPI_AFFH_STR-EARL_START sy-vline 
WA_BAPI_AFFH_STR-FINISH sy-vline 
WA_BAPI_AFFH_STR-EARLY_END sy-vline 
WA_BAPI_AFFH_STR-START_SSFHD sy-vline 
WA_BAPI_AFFH_STR-PLAN_START sy-vline 
WA_BAPI_AFFH_STR-FINISH_SEFHD sy-vline 
WA_BAPI_AFFH_STR-PLAN_FINSH sy-vline 
WA_BAPI_AFFH_STR-START_ISFHD sy-vline 
WA_BAPI_AFFH_STR-ACT_START sy-vline 
WA_BAPI_AFFH_STR-FINISH_IEFHD sy-vline 
WA_BAPI_AFFH_STR-ACT_FINISH sy-vline 
WA_BAPI_AFFH_STR-DURATION sy-vline 
WA_BAPI_AFFH_STR-DURATIONUN sy-vline 
WA_BAPI_AFFH_STR-UNIT_MGEINH sy-vline 
WA_BAPI_AFFH_STR-QUANTITY_MGVGW sy-vline 
WA_BAPI_AFFH_STR-UNIT_MGSOLEH sy-vline 
WA_BAPI_AFFH_STR-QUANT sy-vline 
WA_BAPI_AFFH_STR-UNIT_MGISTEH sy-vline 
WA_BAPI_AFFH_STR-ACTUAL_MGIST sy-vline 
WA_BAPI_AFFH_STR-UNIT_MGRSTEH sy-vline 
WA_BAPI_AFFH_STR-REMAINING_MGRST sy-vline 
WA_BAPI_AFFH_STR-UNIT_MGAUSEH sy-vline 
WA_BAPI_AFFH_STR-QUANTITY_MGAUS sy-vline 
WA_BAPI_AFFH_STR-FORMULA_TOT_QTY sy-vline 
WA_BAPI_AFFH_STR-UNIT_EWEINH sy-vline 
WA_BAPI_AFFH_STR-USAGEVALUE_EWWGW sy-vline 
WA_BAPI_AFFH_STR-UNIT_EWSOLEH sy-vline 
WA_BAPI_AFFH_STR-USAGEVALUE_EWSOL sy-vline 
WA_BAPI_AFFH_STR-UNIT_EWISTEH sy-vline 
WA_BAPI_AFFH_STR-ACTUAL_EWIST sy-vline 
WA_BAPI_AFFH_STR-UNIT_EWRSTEH sy-vline 
WA_BAPI_AFFH_STR-REMAINING_EWRST sy-vline 
WA_BAPI_AFFH_STR-FORMULA_TOT_USAGE sy-vline 
WA_BAPI_AFFH_STR-LANGU sy-vline 
WA_BAPI_AFFH_STR-STD_TEXT_KEY sy-vline 
WA_BAPI_AFFH_STR-PRT_TEXT sy-vline 
WA_BAPI_AFFH_STR-OBJECTTYPE sy-vline 
WA_BAPI_AFFH_STR-CH_PROC_OP sy-vline 
WA_BAPI_AFFH_STR-CHANGE_NO sy-vline      INTO ld_text SEPARATED BY SPACE.

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