ABAP Select data from SAP table E1HR_WP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1HR_WP 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 E1HR_WP. 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 E1HR_WP 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_E1HR_WP TYPE STANDARD TABLE OF E1HR_WP,
      WA_E1HR_WP TYPE E1HR_WP,
      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: <E1HR_WP> TYPE E1HR_WP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1HR_WP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1HR_WP
  INTO TABLE IT_E1HR_WP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1HR_WP
*  INTO TABLE @DATA(IT_E1HR_WP2).
*--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_E1HR_WP INDEX 1 INTO DATA(WA_E1HR_WP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1HR_WP ASSIGNING <E1HR_WP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1HR_WP>-BEGDA = 1.
<E1HR_WP>-ENDDA = 1.
<E1HR_WP>-APZNR = 1.
<E1HR_WP>-BUKRS = 1.
<E1HR_WP>-WERKS = 1.

ENDLOOP.

LOOP AT IT_E1HR_WP INTO WA_E1HR_WP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1HR_WP-PERSG, sy-vline,
  WA_E1HR_WP-PERSK, sy-vline,
  WA_E1HR_WP-ABART, sy-vline,
  WA_E1HR_WP-GSBER, sy-vline,
  WA_E1HR_WP-BTRTL, sy-vline,
  WA_E1HR_WP-ANSVH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1HR_WP 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_E1HR_WP 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_E1HR_WP INTO WA_E1HR_WP.


*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_E1HR_WP_STR, 
BEGDA TYPE STRING,
ENDDA TYPE STRING,
APZNR TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
ABART TYPE STRING,
GSBER TYPE STRING,
BTRTL TYPE STRING,
ANSVH TYPE STRING,
KOSTL TYPE STRING,
ORGEH TYPE STRING,
ORGTX TYPE STRING,
PLANS TYPE STRING,
PLSTX TYPE STRING,
STELL TYPE STRING,
STLTX TYPE STRING,
SNAME TYPE STRING,
ENAME TYPE STRING,
KOKRS TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
SCHKZ TYPE STRING,
ZTERF TYPE STRING,
EMPCT TYPE STRING,
TEILK TYPE STRING,
WOSTD TYPE STRING,
WKWDY TYPE STRING,
ARBST TYPE STRING,
SSOLL TYPE STRING,
DIVGV TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
ANSAL TYPE STRING,
LGA01 TYPE STRING,
BET01 TYPE STRING,
LGA02 TYPE STRING,
BET02 TYPE STRING,
LGA03 TYPE STRING,
BET03 TYPE STRING,
REFID TYPE STRING,
ANZ01 TYPE STRING,
ANZ02 TYPE STRING,
ANZ03 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1HR_WP_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_E1HR_WP_STR-BEGDA sy-vline 
WA_E1HR_WP_STR-ENDDA sy-vline 
WA_E1HR_WP_STR-APZNR sy-vline 
WA_E1HR_WP_STR-BUKRS sy-vline 
WA_E1HR_WP_STR-WERKS sy-vline 
WA_E1HR_WP_STR-PERSG sy-vline 
WA_E1HR_WP_STR-PERSK sy-vline 
WA_E1HR_WP_STR-ABART sy-vline 
WA_E1HR_WP_STR-GSBER sy-vline 
WA_E1HR_WP_STR-BTRTL sy-vline 
WA_E1HR_WP_STR-ANSVH sy-vline 
WA_E1HR_WP_STR-KOSTL sy-vline 
WA_E1HR_WP_STR-ORGEH sy-vline 
WA_E1HR_WP_STR-ORGTX sy-vline 
WA_E1HR_WP_STR-PLANS sy-vline 
WA_E1HR_WP_STR-PLSTX sy-vline 
WA_E1HR_WP_STR-STELL sy-vline 
WA_E1HR_WP_STR-STLTX sy-vline 
WA_E1HR_WP_STR-SNAME sy-vline 
WA_E1HR_WP_STR-ENAME sy-vline 
WA_E1HR_WP_STR-KOKRS sy-vline 
WA_E1HR_WP_STR-FISTL sy-vline 
WA_E1HR_WP_STR-GEBER sy-vline 
WA_E1HR_WP_STR-SCHKZ sy-vline 
WA_E1HR_WP_STR-ZTERF sy-vline 
WA_E1HR_WP_STR-EMPCT sy-vline 
WA_E1HR_WP_STR-TEILK sy-vline 
WA_E1HR_WP_STR-WOSTD sy-vline 
WA_E1HR_WP_STR-WKWDY sy-vline 
WA_E1HR_WP_STR-ARBST sy-vline 
WA_E1HR_WP_STR-SSOLL sy-vline 
WA_E1HR_WP_STR-DIVGV sy-vline 
WA_E1HR_WP_STR-TRFAR sy-vline 
WA_E1HR_WP_STR-TRFGB sy-vline 
WA_E1HR_WP_STR-TRFGR sy-vline 
WA_E1HR_WP_STR-TRFST sy-vline 
WA_E1HR_WP_STR-ANSAL sy-vline 
WA_E1HR_WP_STR-LGA01 sy-vline 
WA_E1HR_WP_STR-BET01 sy-vline 
WA_E1HR_WP_STR-LGA02 sy-vline 
WA_E1HR_WP_STR-BET02 sy-vline 
WA_E1HR_WP_STR-LGA03 sy-vline 
WA_E1HR_WP_STR-BET03 sy-vline 
WA_E1HR_WP_STR-REFID sy-vline 
WA_E1HR_WP_STR-ANZ01 sy-vline 
WA_E1HR_WP_STR-ANZ02 sy-vline 
WA_E1HR_WP_STR-ANZ03 sy-vline      INTO ld_text SEPARATED BY SPACE.

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