ABAP Select data from SAP table PVE_FORM_ARC 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_ARC 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_ARC. 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_ARC 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_ARC TYPE STANDARD TABLE OF PVE_FORM_ARC,
      WA_PVE_FORM_ARC TYPE PVE_FORM_ARC,
      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_ARC> TYPE PVE_FORM_ARC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PVE_FORM_ARC
*  INTO TABLE @DATA(IT_PVE_FORM_ARC2).
*--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_ARC INDEX 1 INTO DATA(WA_PVE_FORM_ARC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PVE_FORM_ARC>-PERS_CODE = 1.
<PVE_FORM_ARC>-COMP_CODE = 1.
<PVE_FORM_ARC>-JUPER_CODE = 1.
<PVE_FORM_ARC>-O_CEDULA = 1.
<PVE_FORM_ARC>-O_CNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PVE_FORM_ARC-O_RIF, sy-vline,
  WA_PVE_FORM_ARC-O_CRIF, sy-vline,
  WA_PVE_FORM_ARC-O_CSSO, sy-vline,
  WA_PVE_FORM_ARC-O_CIUDAD, sy-vline,
  WA_PVE_FORM_ARC-O_ZONAPOST, sy-vline,
  WA_PVE_FORM_ARC-O_ESTADO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PVE_FORM_ARC 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_ARC 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_ARC INTO WA_PVE_FORM_ARC.


*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_PVE_FORM_ARC_STR, 
PERS_CODE TYPE STRING,
COMP_CODE TYPE STRING,
JUPER_CODE TYPE STRING,
O_CEDULA TYPE STRING,
O_CNAME TYPE STRING,
O_RIF TYPE STRING,
O_CRIF TYPE STRING,
O_CSSO TYPE STRING,
O_CIUDAD TYPE STRING,
O_ZONAPOST TYPE STRING,
O_ESTADO TYPE STRING,
O_TELEFONO TYPE STRING,
O_RET_SSO TYPE STRING,
O_REMUN1 TYPE STRING,
O_DESGR1 TYPE STRING,
O_CARGAS TYPE STRING,
O_REMUN2 TYPE STRING,
O_DESGR2 TYPE STRING,
O_CARGA2 TYPE STRING,
O_REMUN3 TYPE STRING,
O_DESGR3 TYPE STRING,
O_CARGA3 TYPE STRING,
O_REMUN4 TYPE STRING,
O_DESGR4 TYPE STRING,
O_CARGA4 TYPE STRING,
O_REMUN5 TYPE STRING,
O_DESGR5 TYPE STRING,
O_CARGA5 TYPE STRING,
PNPBEGDA TYPE STRING,
PNPENDDA TYPE STRING,
O_NOMBRE TYPE STRING,
O_DIRECCIO TYPE STRING,
TAX_DETAIL TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PVE_FORM_ARC_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_ARC_STR-PERS_CODE sy-vline 
WA_PVE_FORM_ARC_STR-COMP_CODE sy-vline 
WA_PVE_FORM_ARC_STR-JUPER_CODE sy-vline 
WA_PVE_FORM_ARC_STR-O_CEDULA sy-vline 
WA_PVE_FORM_ARC_STR-O_CNAME sy-vline 
WA_PVE_FORM_ARC_STR-O_RIF sy-vline 
WA_PVE_FORM_ARC_STR-O_CRIF sy-vline 
WA_PVE_FORM_ARC_STR-O_CSSO sy-vline 
WA_PVE_FORM_ARC_STR-O_CIUDAD sy-vline 
WA_PVE_FORM_ARC_STR-O_ZONAPOST sy-vline 
WA_PVE_FORM_ARC_STR-O_ESTADO sy-vline 
WA_PVE_FORM_ARC_STR-O_TELEFONO sy-vline 
WA_PVE_FORM_ARC_STR-O_RET_SSO sy-vline 
WA_PVE_FORM_ARC_STR-O_REMUN1 sy-vline 
WA_PVE_FORM_ARC_STR-O_DESGR1 sy-vline 
WA_PVE_FORM_ARC_STR-O_CARGAS sy-vline 
WA_PVE_FORM_ARC_STR-O_REMUN2 sy-vline 
WA_PVE_FORM_ARC_STR-O_DESGR2 sy-vline 
WA_PVE_FORM_ARC_STR-O_CARGA2 sy-vline 
WA_PVE_FORM_ARC_STR-O_REMUN3 sy-vline 
WA_PVE_FORM_ARC_STR-O_DESGR3 sy-vline 
WA_PVE_FORM_ARC_STR-O_CARGA3 sy-vline 
WA_PVE_FORM_ARC_STR-O_REMUN4 sy-vline 
WA_PVE_FORM_ARC_STR-O_DESGR4 sy-vline 
WA_PVE_FORM_ARC_STR-O_CARGA4 sy-vline 
WA_PVE_FORM_ARC_STR-O_REMUN5 sy-vline 
WA_PVE_FORM_ARC_STR-O_DESGR5 sy-vline 
WA_PVE_FORM_ARC_STR-O_CARGA5 sy-vline 
WA_PVE_FORM_ARC_STR-PNPBEGDA sy-vline 
WA_PVE_FORM_ARC_STR-PNPENDDA sy-vline 
WA_PVE_FORM_ARC_STR-O_NOMBRE sy-vline 
WA_PVE_FORM_ARC_STR-O_DIRECCIO sy-vline 
WA_PVE_FORM_ARC_STR-TAX_DETAIL sy-vline 
WA_PVE_FORM_ARC_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.