ABAP Select data from SAP table PINPER2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PINPER2 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 PINPER2. 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 PINPER2 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_PINPER2 TYPE STANDARD TABLE OF PINPER2,
      WA_PINPER2 TYPE PINPER2,
      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: <PINPER2> TYPE PINPER2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PINPER2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PINPER2
  INTO TABLE IT_PINPER2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PINPER2
*  INTO TABLE @DATA(IT_PINPER22).
*--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_PINPER2 INDEX 1 INTO DATA(WA_PINPER22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PINPER2 ASSIGNING <PINPER2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PINPER2>-TMPID = 1.
<PINPER2>-CSFLD = 1.
<PINPER2>-ENDDA = 1.
<PINPER2>-BEGDA = 1.
<PINPER2>-MNDTR = 1.

ENDLOOP.

LOOP AT IT_PINPER2 INTO WA_PINPER2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PINPER2-FLDVT, sy-vline,
  WA_PINPER2-WIDTH, sy-vline,
  WA_PINPER2-UIPOS, sy-vline,
  WA_PINPER2-IVPOL, sy-vline,
  WA_PINPER2-IEPOL, sy-vline,
  WA_PINPER2-ROPOL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PINPER2 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_PINPER2 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_PINPER2 INTO WA_PINPER2.


*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_PINPER2_STR, 
TMPID TYPE STRING,
CSFLD TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
MNDTR TYPE STRING,
FLDVT TYPE STRING,
WIDTH TYPE STRING,
UIPOS TYPE STRING,
IVPOL TYPE STRING,
IEPOL TYPE STRING,
ROPOL TYPE STRING,
IVREQ TYPE STRING,
IEREQ TYPE STRING,
ROREQ TYPE STRING,
MNDRQ TYPE STRING,
IVAPP TYPE STRING,
IEAPP TYPE STRING,
ROAPP TYPE STRING,
MNDAP TYPE STRING,
FLDOR TYPE STRING,
DFVAL TYPE STRING,
CLNME TYPE STRING,
MENME TYPE STRING,
CFLBL TYPE STRING,
TLTIP TYPE STRING,
DCLNE TYPE STRING,
DMENE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PINPER2_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_PINPER2_STR-TMPID sy-vline 
WA_PINPER2_STR-CSFLD sy-vline 
WA_PINPER2_STR-ENDDA sy-vline 
WA_PINPER2_STR-BEGDA sy-vline 
WA_PINPER2_STR-MNDTR sy-vline 
WA_PINPER2_STR-FLDVT sy-vline 
WA_PINPER2_STR-WIDTH sy-vline 
WA_PINPER2_STR-UIPOS sy-vline 
WA_PINPER2_STR-IVPOL sy-vline 
WA_PINPER2_STR-IEPOL sy-vline 
WA_PINPER2_STR-ROPOL sy-vline 
WA_PINPER2_STR-IVREQ sy-vline 
WA_PINPER2_STR-IEREQ sy-vline 
WA_PINPER2_STR-ROREQ sy-vline 
WA_PINPER2_STR-MNDRQ sy-vline 
WA_PINPER2_STR-IVAPP sy-vline 
WA_PINPER2_STR-IEAPP sy-vline 
WA_PINPER2_STR-ROAPP sy-vline 
WA_PINPER2_STR-MNDAP sy-vline 
WA_PINPER2_STR-FLDOR sy-vline 
WA_PINPER2_STR-DFVAL sy-vline 
WA_PINPER2_STR-CLNME sy-vline 
WA_PINPER2_STR-MENME sy-vline 
WA_PINPER2_STR-CFLBL sy-vline 
WA_PINPER2_STR-TLTIP sy-vline 
WA_PINPER2_STR-DCLNE sy-vline 
WA_PINPER2_STR-DMENE sy-vline      INTO ld_text SEPARATED BY SPACE.

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