ABAP Select data from SAP table HRVEVINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRVEVINFO
*  INTO TABLE @DATA(IT_HRVEVINFO2).
*--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_HRVEVINFO INDEX 1 INTO DATA(WA_HRVEVINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRVEVINFO>-PLVAR = 1.
<HRVEVINFO>-EOTYP = 1.
<HRVEVINFO>-EVEID = 1.
<HRVEVINFO>-EVBEG = 1.
<HRVEVINFO>-EVEND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRVEVINFO-KOKRS, sy-vline,
  WA_HRVEVINFO-LSTAR, sy-vline,
  WA_HRVEVINFO-RLART, sy-vline,
  WA_HRVEVINFO-VKORG, sy-vline,
  WA_HRVEVINFO-VTWEG, sy-vline,
  WA_HRVEVINFO-SPART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRVEVINFO 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_HRVEVINFO 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_HRVEVINFO INTO WA_HRVEVINFO.


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

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

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

*Conversion exit ALPHA, internal->external for field RSALESORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRVEVINFO-RSALESORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRVEVINFO-RSALESORDER.
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_HRVEVINFO_STR, 
PLVAR TYPE STRING,
EOTYP TYPE STRING,
EVEID TYPE STRING,
EVBEG TYPE STRING,
EVEND TYPE STRING,
KOKRS TYPE STRING,
LSTAR TYPE STRING,
RLART TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
KTGRM TYPE STRING,
COUNTRY TYPE STRING,
TAXJCODE TYPE STRING,
SCOSTCENTER TYPE STRING,
RCOSTCENTER TYPE STRING,
RORDER TYPE STRING,
RSALESORDER TYPE STRING,
RSALESITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRVEVINFO_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_HRVEVINFO_STR-PLVAR sy-vline 
WA_HRVEVINFO_STR-EOTYP sy-vline 
WA_HRVEVINFO_STR-EVEID sy-vline 
WA_HRVEVINFO_STR-EVBEG sy-vline 
WA_HRVEVINFO_STR-EVEND sy-vline 
WA_HRVEVINFO_STR-KOKRS sy-vline 
WA_HRVEVINFO_STR-LSTAR sy-vline 
WA_HRVEVINFO_STR-RLART sy-vline 
WA_HRVEVINFO_STR-VKORG sy-vline 
WA_HRVEVINFO_STR-VTWEG sy-vline 
WA_HRVEVINFO_STR-SPART sy-vline 
WA_HRVEVINFO_STR-KTGRM sy-vline 
WA_HRVEVINFO_STR-COUNTRY sy-vline 
WA_HRVEVINFO_STR-TAXJCODE sy-vline 
WA_HRVEVINFO_STR-SCOSTCENTER sy-vline 
WA_HRVEVINFO_STR-RCOSTCENTER sy-vline 
WA_HRVEVINFO_STR-RORDER sy-vline 
WA_HRVEVINFO_STR-RSALESORDER sy-vline 
WA_HRVEVINFO_STR-RSALESITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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