ABAP Select data from SAP table PVE_FORM_IVSS01 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_IVSS01 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_IVSS01. 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_IVSS01 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_IVSS01 TYPE STANDARD TABLE OF PVE_FORM_IVSS01,
      WA_PVE_FORM_IVSS01 TYPE PVE_FORM_IVSS01,
      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_IVSS01> TYPE PVE_FORM_IVSS01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PVE_FORM_IVSS01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PVE_FORM_IVSS01
  INTO TABLE IT_PVE_FORM_IVSS01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PVE_FORM_IVSS01
*  INTO TABLE @DATA(IT_PVE_FORM_IVSS012).
*--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_IVSS01 INDEX 1 INTO DATA(WA_PVE_FORM_IVSS012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PVE_FORM_IVSS01 ASSIGNING <PVE_FORM_IVSS01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PVE_FORM_IVSS01>-PERNR = 1.
<PVE_FORM_IVSS01>-BUTXT = 1.
<PVE_FORM_IVSS01>-CCSID = 1.
<PVE_FORM_IVSS01>-VEFLG = 1.
<PVE_FORM_IVSS01>-FOFLG = 1.

ENDLOOP.

LOOP AT IT_PVE_FORM_IVSS01 INTO WA_PVE_FORM_IVSS01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PVE_FORM_IVSS01-CEDUL, sy-vline,
  WA_PVE_FORM_IVSS01-EESID, sy-vline,
  WA_PVE_FORM_IVSS01-DPCIA, sy-vline,
  WA_PVE_FORM_IVSS01-ENAME, sy-vline,
  WA_PVE_FORM_IVSS01-GBDAT, sy-vline,
  WA_PVE_FORM_IVSS01-PEFLG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PVE_FORM_IVSS01 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_IVSS01 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_IVSS01 INTO WA_PVE_FORM_IVSS01.


*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_IVSS01-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PVE_FORM_IVSS01-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_IVSS01_STR, 
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,
REAS1 TYPE STRING,
REAS2 TYPE STRING,
REAS3 TYPE STRING,
REAS4 TYPE STRING,
FAMILY TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PVE_FORM_IVSS01_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_IVSS01_STR-PERNR sy-vline 
WA_PVE_FORM_IVSS01_STR-BUTXT sy-vline 
WA_PVE_FORM_IVSS01_STR-CCSID sy-vline 
WA_PVE_FORM_IVSS01_STR-VEFLG sy-vline 
WA_PVE_FORM_IVSS01_STR-FOFLG sy-vline 
WA_PVE_FORM_IVSS01_STR-CEDUL sy-vline 
WA_PVE_FORM_IVSS01_STR-EESID sy-vline 
WA_PVE_FORM_IVSS01_STR-DPCIA sy-vline 
WA_PVE_FORM_IVSS01_STR-ENAME sy-vline 
WA_PVE_FORM_IVSS01_STR-GBDAT sy-vline 
WA_PVE_FORM_IVSS01_STR-PEFLG sy-vline 
WA_PVE_FORM_IVSS01_STR-JUFLG sy-vline 
WA_PVE_FORM_IVSS01_STR-FEFLG sy-vline 
WA_PVE_FORM_IVSS01_STR-MAFLG sy-vline 
WA_PVE_FORM_IVSS01_STR-LHFLG sy-vline 
WA_PVE_FORM_IVSS01_STR-RHFLG sy-vline 
WA_PVE_FORM_IVSS01_STR-HIRDA sy-vline 
WA_PVE_FORM_IVSS01_STR-WSLRY sy-vline 
WA_PVE_FORM_IVSS01_STR-FUNCN sy-vline 
WA_PVE_FORM_IVSS01_STR-FUNCC sy-vline 
WA_PVE_FORM_IVSS01_STR-ADDRE1 sy-vline 
WA_PVE_FORM_IVSS01_STR-ADDRE2 sy-vline 
WA_PVE_FORM_IVSS01_STR-REAS1 sy-vline 
WA_PVE_FORM_IVSS01_STR-REAS2 sy-vline 
WA_PVE_FORM_IVSS01_STR-REAS3 sy-vline 
WA_PVE_FORM_IVSS01_STR-REAS4 sy-vline 
WA_PVE_FORM_IVSS01_STR-FAMILY sy-vline 
WA_PVE_FORM_IVSS01_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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