ABAP Select data from SAP table E1HR_ITA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1HR_ITA 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_ITA. 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_ITA 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_ITA TYPE STANDARD TABLE OF E1HR_ITA,
      WA_E1HR_ITA TYPE E1HR_ITA,
      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_ITA> TYPE E1HR_ITA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1HR_ITA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1HR_ITA
  INTO TABLE IT_E1HR_ITA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1HR_ITA
*  INTO TABLE @DATA(IT_E1HR_ITA2).
*--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_ITA INDEX 1 INTO DATA(WA_E1HR_ITA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1HR_ITA ASSIGNING <E1HR_ITA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1HR_ITA>-BEGDA = 1.
<E1HR_ITA>-ENDDA = 1.
<E1HR_ITA>-MATRI = 1.
<E1HR_ITA>-RIAFI = 1.
<E1HR_ITA>-MALPA = 1.

ENDLOOP.

LOOP AT IT_E1HR_ITA INTO WA_E1HR_ITA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1HR_ITA-CDACC, sy-vline,
  WA_E1HR_ITA-CDCOG, sy-vline,
  WA_E1HR_ITA-DTCOA, sy-vline,
  WA_E1HR_ITA-DTANN, sy-vline,
  WA_E1HR_ITA-DTMES, sy-vline,
  WA_E1HR_ITA-DTCOF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1HR_ITA 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_ITA 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_ITA INTO WA_E1HR_ITA.


*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_ITA_STR, 
BEGDA TYPE STRING,
ENDDA TYPE STRING,
MATRI TYPE STRING,
RIAFI TYPE STRING,
MALPA TYPE STRING,
CDACC TYPE STRING,
CDCOG TYPE STRING,
DTCOA TYPE STRING,
DTANN TYPE STRING,
DTMES TYPE STRING,
DTCOF TYPE STRING,
STAGI TYPE STRING,
CDTFR TYPE STRING,
AR770 TYPE STRING,
RETYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1HR_ITA_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_ITA_STR-BEGDA sy-vline 
WA_E1HR_ITA_STR-ENDDA sy-vline 
WA_E1HR_ITA_STR-MATRI sy-vline 
WA_E1HR_ITA_STR-RIAFI sy-vline 
WA_E1HR_ITA_STR-MALPA sy-vline 
WA_E1HR_ITA_STR-CDACC sy-vline 
WA_E1HR_ITA_STR-CDCOG sy-vline 
WA_E1HR_ITA_STR-DTCOA sy-vline 
WA_E1HR_ITA_STR-DTANN sy-vline 
WA_E1HR_ITA_STR-DTMES sy-vline 
WA_E1HR_ITA_STR-DTCOF sy-vline 
WA_E1HR_ITA_STR-STAGI sy-vline 
WA_E1HR_ITA_STR-CDTFR sy-vline 
WA_E1HR_ITA_STR-AR770 sy-vline 
WA_E1HR_ITA_STR-RETYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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