ABAP Select data from SAP table BAPI_RE_APPORT_RULE_INTC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPI_RE_APPORT_RULE_INTC 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_RE_APPORT_RULE_INTC. 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_RE_APPORT_RULE_INTC 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_RE_APPORT_RULE_INTC TYPE STANDARD TABLE OF BAPI_RE_APPORT_RULE_INTC,
      WA_BAPI_RE_APPORT_RULE_INTC TYPE BAPI_RE_APPORT_RULE_INTC,
      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_RE_APPORT_RULE_INTC> TYPE BAPI_RE_APPORT_RULE_INTC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_RE_APPORT_RULE_INTC
*  INTO TABLE @DATA(IT_BAPI_RE_APPORT_RULE_INTC2).
*--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_RE_APPORT_RULE_INTC INDEX 1 INTO DATA(WA_BAPI_RE_APPORT_RULE_INTC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_RE_APPORT_RULE_INTC>-CHANGEIND = 1.
<BAPI_RE_APPORT_RULE_INTC>-VALIDFROM = 1.
<BAPI_RE_APPORT_RULE_INTC>-SETTLVARIANT = 1.
<BAPI_RE_APPORT_RULE_INTC>-SETTL_OBJNR = 1.
<BAPI_RE_APPORT_RULE_INTC>-OBJTYPESU = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_RE_APPORT_RULE_INTC-OBJIDSU, sy-vline,
  WA_BAPI_RE_APPORT_RULE_INTC-BUKRS, sy-vline,
  WA_BAPI_RE_APPORT_RULE_INTC-SWENR, sy-vline,
  WA_BAPI_RE_APPORT_RULE_INTC-SNKSL, sy-vline,
  WA_BAPI_RE_APPORT_RULE_INTC-SEMPSL, sy-vline,
  WA_BAPI_RE_APPORT_RULE_INTC-MEAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_RE_APPORT_RULE_INTC 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_RE_APPORT_RULE_INTC 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_RE_APPORT_RULE_INTC INTO WA_BAPI_RE_APPORT_RULE_INTC.


*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 SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_APPORT_RULE_INTC-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_APPORT_RULE_INTC-SWENR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field SUM_EQUINUMUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_RE_APPORT_RULE_INTC-SUM_EQUINUMUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_RE_APPORT_RULE_INTC-SUM_EQUINUMUNIT.
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_RE_APPORT_RULE_INTC_STR, 
CHANGEIND TYPE STRING,
VALIDFROM TYPE STRING,
SETTLVARIANT TYPE STRING,
SETTL_OBJNR TYPE STRING,
OBJTYPESU TYPE STRING,
OBJIDSU TYPE STRING,
BUKRS TYPE STRING,
SWENR TYPE STRING,
SNKSL TYPE STRING,
SEMPSL TYPE STRING,
MEAS TYPE STRING,
EQUIVNUM TYPE STRING,
SUM_EQUINUM TYPE STRING,
SUM_EQUINUMUNIT TYPE STRING,
PROZ TYPE STRING,
VOLWATER TYPE STRING,
TEMPWATER TYPE STRING,
HEATVALUE TYPE STRING,
FUELTYPE TYPE STRING,
GCONSUMP TYPE STRING,
QHEATAMOUNT TYPE STRING,
BCONSUMP TYPE STRING,
WHEATAMOUNT TYPE STRING,
WWPROZ TYPE STRING,
HKVOTYP TYPE STRING,
METERFROMRO TYPE STRING,
HOW_DISTRIBUTE TYPE STRING,
REST_OBJECT TYPE STRING,
RESTNEGALLOWED TYPE STRING,
OBJTYPEREST TYPE STRING,
OBJIDREST TYPE STRING,
PURPOSE TYPE STRING,
SHARE_PERCENT TYPE STRING,
VACANCY_PERCENT TYPE STRING,
LOC_KEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_RE_APPORT_RULE_INTC_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_RE_APPORT_RULE_INTC_STR-CHANGEIND sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-VALIDFROM sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-SETTLVARIANT sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-SETTL_OBJNR sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-OBJTYPESU sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-OBJIDSU sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-BUKRS sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-SWENR sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-SNKSL sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-SEMPSL sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-MEAS sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-EQUIVNUM sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-SUM_EQUINUM sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-SUM_EQUINUMUNIT sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-PROZ sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-VOLWATER sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-TEMPWATER sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-HEATVALUE sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-FUELTYPE sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-GCONSUMP sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-QHEATAMOUNT sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-BCONSUMP sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-WHEATAMOUNT sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-WWPROZ sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-HKVOTYP sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-METERFROMRO sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-HOW_DISTRIBUTE sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-REST_OBJECT sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-RESTNEGALLOWED sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-OBJTYPEREST sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-OBJIDREST sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-PURPOSE sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-SHARE_PERCENT sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-VACANCY_PERCENT sy-vline 
WA_BAPI_RE_APPORT_RULE_INTC_STR-LOC_KEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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