ABAP Select data from SAP table HRFPM_ENC_RULE_DERIVE_SRC_OBJ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRFPM_ENC_RULE_DERIVE_SRC_OBJ
*  INTO TABLE @DATA(IT_HRFPM_ENC_RULE_DERIVE_SRC_OBJ2).
*--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_HRFPM_ENC_RULE_DERIVE_SRC_OBJ INDEX 1 INTO DATA(WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRFPM_ENC_RULE_DERIVE_SRC_OBJ>-PLVAR = 1.
<HRFPM_ENC_RULE_DERIVE_SRC_OBJ>-OTYPE = 1.
<HRFPM_ENC_RULE_DERIVE_SRC_OBJ>-OBJID = 1.
<HRFPM_ENC_RULE_DERIVE_SRC_OBJ>-BUKRS = 1.
<HRFPM_ENC_RULE_DERIVE_SRC_OBJ>-GEBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ-GSBER, sy-vline,
  WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ-KOSTL, sy-vline,
  WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ-FKBER, sy-vline,
  WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ-KOKRS, sy-vline,
  WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ-FISTL, sy-vline,
  WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ-GRANT_NBR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ 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_HRFPM_ENC_RULE_DERIVE_SRC_OBJ 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_HRFPM_ENC_RULE_DERIVE_SRC_OBJ INTO WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ.


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

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

*Conversion exit ALPHA, internal->external for field SGMNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ-SGMNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ-SGMNT.
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_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR, 
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
BUKRS TYPE STRING,
GEBER TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
FKBER TYPE STRING,
KOKRS TYPE STRING,
FISTL TYPE STRING,
GRANT_NBR TYPE STRING,
SGMNT TYPE STRING,
BUDGET_PD TYPE STRING,
FUND_TYPE TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
STATUS TYPE STRING,
STAT2 TYPE STRING,
STAT1 TYPE STRING,
CTTYP TYPE STRING,
CTEDT TYPE STRING,
CTBEG TYPE STRING,
ANSVH TYPE STRING,
ENC_RULE_TYPE TYPE STRING,
STARTDATE TYPE STRING,
INITRUN TYPE STRING,
RUNVARIANT TYPE STRING,
ENC_VARIANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_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_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-PLVAR sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-OTYPE sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-OBJID sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-BUKRS sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-GEBER sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-GSBER sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-KOSTL sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-FKBER sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-KOKRS sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-FISTL sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-GRANT_NBR sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-SGMNT sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-BUDGET_PD sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-FUND_TYPE sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-PERSG sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-PERSK sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-WERKS sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-BTRTL sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-STATUS sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-STAT2 sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-STAT1 sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-CTTYP sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-CTEDT sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-CTBEG sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-ANSVH sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-ENC_RULE_TYPE sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-STARTDATE sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-INITRUN sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-RUNVARIANT sy-vline 
WA_HRFPM_ENC_RULE_DERIVE_SRC_OBJ_STR-ENC_VARIANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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