ABAP Select data from SAP table ISU_BILLVAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU_BILLVAL
*  INTO TABLE @DATA(IT_ISU_BILLVAL2).
*--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_ISU_BILLVAL INDEX 1 INTO DATA(WA_ISU_BILLVAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU_BILLVAL>-AB = 1.
<ISU_BILLVAL>-BIS = 1.
<ISU_BILLVAL>-AAT = 1.
<ISU_BILLVAL>-FAKTOR = 1.
<ISU_BILLVAL>-CONT_COUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU_BILLVAL-BEH_TYPE, sy-vline,
  WA_ISU_BILLVAL-DIFFCULT, sy-vline,
  WA_ISU_BILLVAL-FREQUENZ, sy-vline,
  WA_ISU_BILLVAL-WASTE_TYPE, sy-vline,
  WA_ISU_BILLVAL-KOMPFAKT, sy-vline,
  WA_ISU_BILLVAL-NO_UNITIES, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU_BILLVAL 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_ISU_BILLVAL 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_ISU_BILLVAL INTO WA_ISU_BILLVAL.


*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 MATN1, internal->external for field BEH_TYPE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ISU_BILLVAL-BEH_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_BILLVAL-BEH_TYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field WASTE_TYPE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ISU_BILLVAL-WASTE_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_BILLVAL-WASTE_TYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field WASTE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ISU_BILLVAL-WASTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_BILLVAL-WASTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORDERNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_BILLVAL-ORDERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_BILLVAL-ORDERNR.
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_ISU_BILLVAL_STR, 
AB TYPE STRING,
BIS TYPE STRING,
AAT TYPE STRING,
FAKTOR TYPE STRING,
CONT_COUNT TYPE STRING,
BEH_TYPE TYPE STRING,
DIFFCULT TYPE STRING,
FREQUENZ TYPE STRING,
WASTE_TYPE TYPE STRING,
KOMPFAKT TYPE STRING,
NO_UNITIES TYPE STRING,
ANZPERS TYPE STRING,
WINTERLEVEL TYPE STRING,
ROBTYP TYPE STRING,
REMENG TYPE STRING,
FLAECHE TYPE STRING,
WEEKLY TYPE STRING,
MONTH_COUNT TYPE STRING,
DAY_TYPE TYPE STRING,
BEH_ANZAHL_RM TYPE STRING,
WASTE_WEIGHT TYPE STRING,
WASTE TYPE STRING,
WASTE_VOL TYPE STRING,
CONFTYPE TYPE STRING,
ABRMENGE TYPE STRING,
RATEDVAL TYPE STRING,
DAY_FREQUENCY TYPE STRING,
ORDERNR TYPE STRING,
ORDER_LAUFNR TYPE STRING,
BILLFLD1 TYPE STRING,
BILLFLD2 TYPE STRING,
BILLFLD3 TYPE STRING,
BILLFLD4 TYPE STRING,
BILLFLD5 TYPE STRING,
BILLFLD6 TYPE STRING,
BILLFLD7 TYPE STRING,
BILLFLD8 TYPE STRING,
BILLFLD9 TYPE STRING,
BILLFLD10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU_BILLVAL_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_ISU_BILLVAL_STR-AB sy-vline 
WA_ISU_BILLVAL_STR-BIS sy-vline 
WA_ISU_BILLVAL_STR-AAT sy-vline 
WA_ISU_BILLVAL_STR-FAKTOR sy-vline 
WA_ISU_BILLVAL_STR-CONT_COUNT sy-vline 
WA_ISU_BILLVAL_STR-BEH_TYPE sy-vline 
WA_ISU_BILLVAL_STR-DIFFCULT sy-vline 
WA_ISU_BILLVAL_STR-FREQUENZ sy-vline 
WA_ISU_BILLVAL_STR-WASTE_TYPE sy-vline 
WA_ISU_BILLVAL_STR-KOMPFAKT sy-vline 
WA_ISU_BILLVAL_STR-NO_UNITIES sy-vline 
WA_ISU_BILLVAL_STR-ANZPERS sy-vline 
WA_ISU_BILLVAL_STR-WINTERLEVEL sy-vline 
WA_ISU_BILLVAL_STR-ROBTYP sy-vline 
WA_ISU_BILLVAL_STR-REMENG sy-vline 
WA_ISU_BILLVAL_STR-FLAECHE sy-vline 
WA_ISU_BILLVAL_STR-WEEKLY sy-vline 
WA_ISU_BILLVAL_STR-MONTH_COUNT sy-vline 
WA_ISU_BILLVAL_STR-DAY_TYPE sy-vline 
WA_ISU_BILLVAL_STR-BEH_ANZAHL_RM sy-vline 
WA_ISU_BILLVAL_STR-WASTE_WEIGHT sy-vline 
WA_ISU_BILLVAL_STR-WASTE sy-vline 
WA_ISU_BILLVAL_STR-WASTE_VOL sy-vline 
WA_ISU_BILLVAL_STR-CONFTYPE sy-vline 
WA_ISU_BILLVAL_STR-ABRMENGE sy-vline 
WA_ISU_BILLVAL_STR-RATEDVAL sy-vline 
WA_ISU_BILLVAL_STR-DAY_FREQUENCY sy-vline 
WA_ISU_BILLVAL_STR-ORDERNR sy-vline 
WA_ISU_BILLVAL_STR-ORDER_LAUFNR sy-vline 
WA_ISU_BILLVAL_STR-BILLFLD1 sy-vline 
WA_ISU_BILLVAL_STR-BILLFLD2 sy-vline 
WA_ISU_BILLVAL_STR-BILLFLD3 sy-vline 
WA_ISU_BILLVAL_STR-BILLFLD4 sy-vline 
WA_ISU_BILLVAL_STR-BILLFLD5 sy-vline 
WA_ISU_BILLVAL_STR-BILLFLD6 sy-vline 
WA_ISU_BILLVAL_STR-BILLFLD7 sy-vline 
WA_ISU_BILLVAL_STR-BILLFLD8 sy-vline 
WA_ISU_BILLVAL_STR-BILLFLD9 sy-vline 
WA_ISU_BILLVAL_STR-BILLFLD10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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