ABAP Select data from SAP table E1HR_UWK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1HR_UWK 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_UWK. 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_UWK 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_UWK TYPE STANDARD TABLE OF E1HR_UWK,
      WA_E1HR_UWK TYPE E1HR_UWK,
      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_UWK> TYPE E1HR_UWK.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1HR_UWK.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1HR_UWK
  INTO TABLE IT_E1HR_UWK.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1HR_UWK
*  INTO TABLE @DATA(IT_E1HR_UWK2).
*--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_UWK INDEX 1 INTO DATA(WA_E1HR_UWK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1HR_UWK ASSIGNING <E1HR_UWK>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1HR_UWK>-TAXAU = 1.
<E1HR_UWK>-WKSIT = 1.
<E1HR_UWK>-LTEXT = 1.
<E1HR_UWK>-ADRES = 1.
<E1HR_UWK>-STRAS = 1.

ENDLOOP.

LOOP AT IT_E1HR_UWK INTO WA_E1HR_UWK.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1HR_UWK-ORT01, sy-vline,
  WA_E1HR_UWK-STATE, sy-vline,
  WA_E1HR_UWK-ZIPCD, sy-vline,
  WA_E1HR_UWK-TELNR, sy-vline,
  WA_E1HR_UWK-REPUN, sy-vline,
  WA_E1HR_UWK-NCLOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1HR_UWK 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_UWK 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_UWK INTO WA_E1HR_UWK.


*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_UWK_STR, 
TAXAU TYPE STRING,
WKSIT TYPE STRING,
LTEXT TYPE STRING,
ADRES TYPE STRING,
STRAS TYPE STRING,
ORT01 TYPE STRING,
STATE TYPE STRING,
ZIPCD TYPE STRING,
TELNR TYPE STRING,
REPUN TYPE STRING,
NCLOC TYPE STRING,
NCSTA TYPE STRING,
NCACT TYPE STRING,
EEMTH1 TYPE STRING,
EEMTH2 TYPE STRING,
EEMTH3 TYPE STRING,
M1TAXA TYPE STRING,
M1SUBW TYPE STRING,
M1TAXW TYPE STRING,
M1GRSW TYPE STRING,
M1EXMW TYPE STRING,
M2TAXA TYPE STRING,
M2SUBW TYPE STRING,
M2TAXW TYPE STRING,
M2GRSW TYPE STRING,
M2EXMW TYPE STRING,
M3TAXA TYPE STRING,
M3SUBW TYPE STRING,
M3TAXW TYPE STRING,
M3GRSW TYPE STRING,
M3EXMW TYPE STRING,
QTAXA TYPE STRING,
QSUBW TYPE STRING,
QTAXW TYPE STRING,
QGRSW TYPE STRING,
QEXMW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1HR_UWK_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_UWK_STR-TAXAU sy-vline 
WA_E1HR_UWK_STR-WKSIT sy-vline 
WA_E1HR_UWK_STR-LTEXT sy-vline 
WA_E1HR_UWK_STR-ADRES sy-vline 
WA_E1HR_UWK_STR-STRAS sy-vline 
WA_E1HR_UWK_STR-ORT01 sy-vline 
WA_E1HR_UWK_STR-STATE sy-vline 
WA_E1HR_UWK_STR-ZIPCD sy-vline 
WA_E1HR_UWK_STR-TELNR sy-vline 
WA_E1HR_UWK_STR-REPUN sy-vline 
WA_E1HR_UWK_STR-NCLOC sy-vline 
WA_E1HR_UWK_STR-NCSTA sy-vline 
WA_E1HR_UWK_STR-NCACT sy-vline 
WA_E1HR_UWK_STR-EEMTH1 sy-vline 
WA_E1HR_UWK_STR-EEMTH2 sy-vline 
WA_E1HR_UWK_STR-EEMTH3 sy-vline 
WA_E1HR_UWK_STR-M1TAXA sy-vline 
WA_E1HR_UWK_STR-M1SUBW sy-vline 
WA_E1HR_UWK_STR-M1TAXW sy-vline 
WA_E1HR_UWK_STR-M1GRSW sy-vline 
WA_E1HR_UWK_STR-M1EXMW sy-vline 
WA_E1HR_UWK_STR-M2TAXA sy-vline 
WA_E1HR_UWK_STR-M2SUBW sy-vline 
WA_E1HR_UWK_STR-M2TAXW sy-vline 
WA_E1HR_UWK_STR-M2GRSW sy-vline 
WA_E1HR_UWK_STR-M2EXMW sy-vline 
WA_E1HR_UWK_STR-M3TAXA sy-vline 
WA_E1HR_UWK_STR-M3SUBW sy-vline 
WA_E1HR_UWK_STR-M3TAXW sy-vline 
WA_E1HR_UWK_STR-M3GRSW sy-vline 
WA_E1HR_UWK_STR-M3EXMW sy-vline 
WA_E1HR_UWK_STR-QTAXA sy-vline 
WA_E1HR_UWK_STR-QSUBW sy-vline 
WA_E1HR_UWK_STR-QTAXW sy-vline 
WA_E1HR_UWK_STR-QGRSW sy-vline 
WA_E1HR_UWK_STR-QEXMW sy-vline      INTO ld_text SEPARATED BY SPACE.

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