ABAP Select data from SAP table PVE_FORM_ISLR 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_ISLR 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_ISLR. 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_ISLR 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_ISLR TYPE STANDARD TABLE OF PVE_FORM_ISLR,
      WA_PVE_FORM_ISLR TYPE PVE_FORM_ISLR,
      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_ISLR> TYPE PVE_FORM_ISLR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PVE_FORM_ISLR
*  INTO TABLE @DATA(IT_PVE_FORM_ISLR2).
*--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_ISLR INDEX 1 INTO DATA(WA_PVE_FORM_ISLR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PVE_FORM_ISLR>-BUKRS = 1.
<PVE_FORM_ISLR>-RIFID = 1.
<PVE_FORM_ISLR>-BUTXT = 1.
<PVE_FORM_ISLR>-NAME = 1.
<PVE_FORM_ISLR>-BEGDA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PVE_FORM_ISLR-ENDDA, sy-vline,
  WA_PVE_FORM_ISLR-AREA_CODE, sy-vline,
  WA_PVE_FORM_ISLR-TELEPHONE, sy-vline,
  WA_PVE_FORM_ISLR-ADDRESS, sy-vline,
  WA_PVE_FORM_ISLR-JUPER, sy-vline,
  WA_PVE_FORM_ISLR-OUTPT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PVE_FORM_ISLR 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_ISLR 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_ISLR INTO WA_PVE_FORM_ISLR.


*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_ISLR_STR, 
BUKRS TYPE STRING,
RIFID TYPE STRING,
BUTXT TYPE STRING,
NAME TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
AREA_CODE TYPE STRING,
TELEPHONE TYPE STRING,
ADDRESS TYPE STRING,
JUPER TYPE STRING,
OUTPT TYPE STRING,
ENDYR TYPE STRING,
ENDMM TYPE STRING,
TOTAL TYPE STRING,
JUPER TYPE STRING,
EMPLOYEES TYPE STRING,
BASES TYPE STRING,
PERCENTAGES TYPE STRING,
MEDIA_NUMBER TYPE STRING,
MEDIA TYPE STRING,
PAGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PVE_FORM_ISLR_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_ISLR_STR-BUKRS sy-vline 
WA_PVE_FORM_ISLR_STR-RIFID sy-vline 
WA_PVE_FORM_ISLR_STR-BUTXT sy-vline 
WA_PVE_FORM_ISLR_STR-NAME sy-vline 
WA_PVE_FORM_ISLR_STR-BEGDA sy-vline 
WA_PVE_FORM_ISLR_STR-ENDDA sy-vline 
WA_PVE_FORM_ISLR_STR-AREA_CODE sy-vline 
WA_PVE_FORM_ISLR_STR-TELEPHONE sy-vline 
WA_PVE_FORM_ISLR_STR-ADDRESS sy-vline 
WA_PVE_FORM_ISLR_STR-JUPER sy-vline 
WA_PVE_FORM_ISLR_STR-OUTPT sy-vline 
WA_PVE_FORM_ISLR_STR-ENDYR sy-vline 
WA_PVE_FORM_ISLR_STR-ENDMM sy-vline 
WA_PVE_FORM_ISLR_STR-TOTAL sy-vline 
WA_PVE_FORM_ISLR_STR-JUPER sy-vline 
WA_PVE_FORM_ISLR_STR-EMPLOYEES sy-vline 
WA_PVE_FORM_ISLR_STR-BASES sy-vline 
WA_PVE_FORM_ISLR_STR-PERCENTAGES sy-vline 
WA_PVE_FORM_ISLR_STR-MEDIA_NUMBER sy-vline 
WA_PVE_FORM_ISLR_STR-MEDIA sy-vline 
WA_PVE_FORM_ISLR_STR-PAGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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