ABAP Select data from SAP table PINPEW27 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PINPEW27 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 PINPEW27. 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 PINPEW27 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_PINPEW27 TYPE STANDARD TABLE OF PINPEW27,
      WA_PINPEW27 TYPE PINPEW27,
      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: <PINPEW27> TYPE PINPEW27.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PINPEW27.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PINPEW27
  INTO TABLE IT_PINPEW27.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PINPEW27
*  INTO TABLE @DATA(IT_PINPEW272).
*--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_PINPEW27 INDEX 1 INTO DATA(WA_PINPEW272).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PINPEW27 ASSIGNING <PINPEW27>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PINPEW27>-POGUI = 1.
<PINPEW27>-VERSN = 1.
<PINPEW27>-AREKY = 1.
<PINPEW27>-PODES = 1.
<PINPEW27>-CREBY = 1.

ENDLOOP.

LOOP AT IT_PINPEW27 INTO WA_PINPEW27.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PINPEW27-CHABY, sy-vline,
  WA_PINPEW27-CREPE, sy-vline,
  WA_PINPEW27-CHAPE, sy-vline,
  WA_PINPEW27-CRENM, sy-vline,
  WA_PINPEW27-CHANM, sy-vline,
  WA_PINPEW27-CREDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PINPEW27 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_PINPEW27 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_PINPEW27 INTO WA_PINPEW27.


*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_PINPEW27_STR, 
POGUI TYPE STRING,
VERSN TYPE STRING,
AREKY TYPE STRING,
PODES TYPE STRING,
CREBY TYPE STRING,
CHABY TYPE STRING,
CREPE TYPE STRING,
CHAPE TYPE STRING,
CRENM TYPE STRING,
CHANM TYPE STRING,
CREDT TYPE STRING,
CHADT TYPE STRING,
CURAN TYPE STRING,
CURAP TYPE STRING,
PREAN TYPE STRING,
PREAP TYPE STRING,
NEXAN TYPE STRING,
NEXAP TYPE STRING,
CRLEV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PINPEW27_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_PINPEW27_STR-POGUI sy-vline 
WA_PINPEW27_STR-VERSN sy-vline 
WA_PINPEW27_STR-AREKY sy-vline 
WA_PINPEW27_STR-PODES sy-vline 
WA_PINPEW27_STR-CREBY sy-vline 
WA_PINPEW27_STR-CHABY sy-vline 
WA_PINPEW27_STR-CREPE sy-vline 
WA_PINPEW27_STR-CHAPE sy-vline 
WA_PINPEW27_STR-CRENM sy-vline 
WA_PINPEW27_STR-CHANM sy-vline 
WA_PINPEW27_STR-CREDT sy-vline 
WA_PINPEW27_STR-CHADT sy-vline 
WA_PINPEW27_STR-CURAN sy-vline 
WA_PINPEW27_STR-CURAP sy-vline 
WA_PINPEW27_STR-PREAN sy-vline 
WA_PINPEW27_STR-PREAP sy-vline 
WA_PINPEW27_STR-NEXAN sy-vline 
WA_PINPEW27_STR-NEXAP sy-vline 
WA_PINPEW27_STR-CRLEV sy-vline      INTO ld_text SEPARATED BY SPACE.

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