ABAP Select data from SAP table P48_HPHRALP0_ALV_MWE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P48_HPHRALP0_ALV_MWE 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 P48_HPHRALP0_ALV_MWE. 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 P48_HPHRALP0_ALV_MWE 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_P48_HPHRALP0_ALV_MWE TYPE STANDARD TABLE OF P48_HPHRALP0_ALV_MWE,
      WA_P48_HPHRALP0_ALV_MWE TYPE P48_HPHRALP0_ALV_MWE,
      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: <P48_HPHRALP0_ALV_MWE> TYPE P48_HPHRALP0_ALV_MWE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P48_HPHRALP0_ALV_MWE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P48_HPHRALP0_ALV_MWE
  INTO TABLE IT_P48_HPHRALP0_ALV_MWE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P48_HPHRALP0_ALV_MWE
*  INTO TABLE @DATA(IT_P48_HPHRALP0_ALV_MWE2).
*--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_P48_HPHRALP0_ALV_MWE INDEX 1 INTO DATA(WA_P48_HPHRALP0_ALV_MWE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P48_HPHRALP0_ALV_MWE ASSIGNING <P48_HPHRALP0_ALV_MWE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P48_HPHRALP0_ALV_MWE>-SCH_NUM = 1.
<P48_HPHRALP0_ALV_MWE>-PERNR = 1.
<P48_HPHRALP0_ALV_MWE>-FCODE = 1.
<P48_HPHRALP0_ALV_MWE>-EMTIN = 1.
<P48_HPHRALP0_ALV_MWE>-BRCODE_ER = 1.

ENDLOOP.

LOOP AT IT_P48_HPHRALP0_ALV_MWE INTO WA_P48_HPHRALP0_ALV_MWE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P48_HPHRALP0_ALV_MWE-RETN_PERIOD, sy-vline,
  WA_P48_HPHRALP0_ALV_MWE-SEQNO, sy-vline,
  WA_P48_HPHRALP0_ALV_MWE-TAXFN, sy-vline,
  WA_P48_HPHRALP0_ALV_MWE-BRCODE_EE, sy-vline,
  WA_P48_HPHRALP0_ALV_MWE-NACHN, sy-vline,
  WA_P48_HPHRALP0_ALV_MWE-VORNA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P48_HPHRALP0_ALV_MWE 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_P48_HPHRALP0_ALV_MWE 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_P48_HPHRALP0_ALV_MWE INTO WA_P48_HPHRALP0_ALV_MWE.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P48_HPHRALP0_ALV_MWE_STR, 
SCH_NUM TYPE STRING,
PERNR TYPE STRING,
FCODE TYPE STRING,
EMTIN TYPE STRING,
BRCODE_ER TYPE STRING,
RETN_PERIOD TYPE STRING,
SEQNO TYPE STRING,
TAXFN TYPE STRING,
BRCODE_EE TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
NACH2 TYPE STRING,
REGNO TYPE STRING,
PREV_GCI TYPE STRING,
PREV_BASICSMW TYPE STRING,
PREV_HOL_PAY TYPE STRING,
PREV_OT_PAY TYPE STRING,
PREV_NSD TYPE STRING,
PREV_HAZARD_PAY TYPE STRING,
PREV_BONUS0 TYPE STRING,
PREV_DEMI TYPE STRING,
PREV_SSSCONT0 TYPE STRING,
PREV_SALARY0 TYPE STRING,
PREV_TOT_NTAXABLE TYPE STRING,
PREV_BONUS1 TYPE STRING,
PREV_SALARY1 TYPE STRING,
PREV_TOT_TAXABLE TYPE STRING,
HIRE_DATE TYPE STRING,
TERM_DATE TYPE STRING,
CURR_GCI TYPE STRING,
CURR_BASICPD TYPE STRING,
CURR_BASICPM TYPE STRING,
CURR_BASICPY TYPE STRING,
FACTOR_USED TYPE STRING,
CURR_HOL_PAY TYPE STRING,
CURR_OT_PAY TYPE STRING,
CURR_NSD TYPE STRING,
CURR_HAZARD_PAY TYPE STRING,
THIR TYPE STRING,
DEMI TYPE STRING,
CURR_SSSCONT0 TYPE STRING,
CURR_SALARY0 TYPE STRING,
PRES_TOTAL_NONTAX_COMP_INCOME TYPE STRING,
CURR_BONUS1 TYPE STRING,
CURR_SALARY1 TYPE STRING,
TOTIN TYPE STRING,
TOT_PREV_PRES TYPE STRING,
NET_TXCIN TYPE STRING,
TXDUE TYPE STRING,
PRVTX TYPE STRING,
PRSTX TYPE STRING,
TXDEC TYPE STRING,
TXREF TYPE STRING,
TAXW2 TYPE STRING,
NATIONALITY TYPE STRING,
EMPLOYMENT_STATUS TYPE STRING,
REASON_SEPARATION TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P48_HPHRALP0_ALV_MWE_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_P48_HPHRALP0_ALV_MWE_STR-SCH_NUM sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PERNR sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-FCODE sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-EMTIN sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-BRCODE_ER sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-RETN_PERIOD sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-SEQNO sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-TAXFN sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-BRCODE_EE sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-NACHN sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-VORNA sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-NACH2 sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-REGNO sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_GCI sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_BASICSMW sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_HOL_PAY sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_OT_PAY sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_NSD sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_HAZARD_PAY sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_BONUS0 sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_DEMI sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_SSSCONT0 sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_SALARY0 sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_TOT_NTAXABLE sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_BONUS1 sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_SALARY1 sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PREV_TOT_TAXABLE sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-HIRE_DATE sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-TERM_DATE sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-CURR_GCI sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-CURR_BASICPD sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-CURR_BASICPM sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-CURR_BASICPY sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-FACTOR_USED sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-CURR_HOL_PAY sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-CURR_OT_PAY sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-CURR_NSD sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-CURR_HAZARD_PAY sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-THIR sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-DEMI sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-CURR_SSSCONT0 sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-CURR_SALARY0 sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PRES_TOTAL_NONTAX_COMP_INCOME sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-CURR_BONUS1 sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-CURR_SALARY1 sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-TOTIN sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-TOT_PREV_PRES sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-NET_TXCIN sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-TXDUE sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PRVTX sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-PRSTX sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-TXDEC sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-TXREF sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-TAXW2 sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-NATIONALITY sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-EMPLOYMENT_STATUS sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-REASON_SEPARATION sy-vline 
WA_P48_HPHRALP0_ALV_MWE_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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