ABAP Select data from SAP table PVE_FORM_HRVE_IVSS_02 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PVE_FORM_HRVE_IVSS_02 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 PVE_FORM_HRVE_IVSS_02. 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 PVE_FORM_HRVE_IVSS_02 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_PVE_FORM_HRVE_IVSS_02 TYPE STANDARD TABLE OF PVE_FORM_HRVE_IVSS_02,
      WA_PVE_FORM_HRVE_IVSS_02 TYPE PVE_FORM_HRVE_IVSS_02,
      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: <PVE_FORM_HRVE_IVSS_02> TYPE PVE_FORM_HRVE_IVSS_02.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PVE_FORM_HRVE_IVSS_02.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PVE_FORM_HRVE_IVSS_02
  INTO TABLE IT_PVE_FORM_HRVE_IVSS_02.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PVE_FORM_HRVE_IVSS_02
*  INTO TABLE @DATA(IT_PVE_FORM_HRVE_IVSS_022).
*--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_PVE_FORM_HRVE_IVSS_02 INDEX 1 INTO DATA(WA_PVE_FORM_HRVE_IVSS_022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PVE_FORM_HRVE_IVSS_02 ASSIGNING <PVE_FORM_HRVE_IVSS_02>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PVE_FORM_HRVE_IVSS_02>-PDATE = 1.
<PVE_FORM_HRVE_IVSS_02>-PERNR = 1.
<PVE_FORM_HRVE_IVSS_02>-BUTXT = 1.
<PVE_FORM_HRVE_IVSS_02>-CCSID = 1.
<PVE_FORM_HRVE_IVSS_02>-VEFLG = 1.

ENDLOOP.

LOOP AT IT_PVE_FORM_HRVE_IVSS_02 INTO WA_PVE_FORM_HRVE_IVSS_02.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PVE_FORM_HRVE_IVSS_02-FOFLG, sy-vline,
  WA_PVE_FORM_HRVE_IVSS_02-CEDUL, sy-vline,
  WA_PVE_FORM_HRVE_IVSS_02-EESID, sy-vline,
  WA_PVE_FORM_HRVE_IVSS_02-DPCIA, sy-vline,
  WA_PVE_FORM_HRVE_IVSS_02-ENAME, sy-vline,
  WA_PVE_FORM_HRVE_IVSS_02-GBDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PVE_FORM_HRVE_IVSS_02 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_PVE_FORM_HRVE_IVSS_02 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_PVE_FORM_HRVE_IVSS_02 INTO WA_PVE_FORM_HRVE_IVSS_02.


*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 PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PVE_FORM_HRVE_IVSS_02-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PVE_FORM_HRVE_IVSS_02-GBDAT.
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_PVE_FORM_HRVE_IVSS_02_STR, 
PDATE TYPE STRING,
PERNR TYPE STRING,
BUTXT TYPE STRING,
CCSID TYPE STRING,
VEFLG TYPE STRING,
FOFLG TYPE STRING,
CEDUL TYPE STRING,
EESID TYPE STRING,
DPCIA TYPE STRING,
ENAME TYPE STRING,
GBDAT TYPE STRING,
PEFLG TYPE STRING,
JUFLG TYPE STRING,
FEFLG TYPE STRING,
MAFLG TYPE STRING,
LHFLG TYPE STRING,
RHFLG TYPE STRING,
HIRDA TYPE STRING,
WSLRY TYPE STRING,
FUNCN TYPE STRING,
FUNCC TYPE STRING,
ADDRE1 TYPE STRING,
ADDRE2 TYPE STRING,
RP_REAS1 TYPE STRING,
RP_REAS2 TYPE STRING,
RP_REAS3 TYPE STRING,
RP_REAS4 TYPE STRING,
FAMILY_LINE TYPE STRING,
CURR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PVE_FORM_HRVE_IVSS_02_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_PVE_FORM_HRVE_IVSS_02_STR-PDATE sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-PERNR sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-BUTXT sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-CCSID sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-VEFLG sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-FOFLG sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-CEDUL sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-EESID sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-DPCIA sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-ENAME sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-GBDAT sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-PEFLG sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-JUFLG sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-FEFLG sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-MAFLG sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-LHFLG sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-RHFLG sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-HIRDA sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-WSLRY sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-FUNCN sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-FUNCC sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-ADDRE1 sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-ADDRE2 sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-RP_REAS1 sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-RP_REAS2 sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-RP_REAS3 sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-RP_REAS4 sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-FAMILY_LINE sy-vline 
WA_PVE_FORM_HRVE_IVSS_02_STR-CURR sy-vline      INTO ld_text SEPARATED BY SPACE.

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