ABAP Select data from SAP table PIN_REMS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIN_REMS
*  INTO TABLE @DATA(IT_PIN_REMS2).
*--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_PIN_REMS INDEX 1 INTO DATA(WA_PIN_REMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIN_REMS>-PERNR = 1.
<PIN_REMS>-PAYAR = 1.
<PIN_REMS>-TAXTX = 1.
<PIN_REMS>-CLTYP = 1.
<PIN_REMS>-DURTN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIN_REMS-LGART, sy-vline,
  WA_PIN_REMS-TOTAM, sy-vline,
  WA_PIN_REMS-CRTAM, sy-vline,
  WA_PIN_REMS-UNPAM, sy-vline,
  WA_PIN_REMS-BALAM, sy-vline,
  WA_PIN_REMS-TOTNO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIN_REMS 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_PIN_REMS 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_PIN_REMS INTO WA_PIN_REMS.


*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_PIN_REMS_STR, 
PERNR TYPE STRING,
PAYAR TYPE STRING,
TAXTX TYPE STRING,
CLTYP TYPE STRING,
DURTN TYPE STRING,
LGART TYPE STRING,
TOTAM TYPE STRING,
CRTAM TYPE STRING,
UNPAM TYPE STRING,
BALAM TYPE STRING,
TOTNO TYPE STRING,
CRTNO TYPE STRING,
UNPNO TYPE STRING,
BALNO TYPE STRING,
UNIT TYPE STRING,
TAXCD TYPE STRING,
CUMTY TYPE STRING,
CALPR TYPE STRING,
ALGRP TYPE STRING,
ENDTE TYPE STRING,
BGDTE TYPE STRING,
CFPER TYPE STRING,
CLMNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIN_REMS_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_PIN_REMS_STR-PERNR sy-vline 
WA_PIN_REMS_STR-PAYAR sy-vline 
WA_PIN_REMS_STR-TAXTX sy-vline 
WA_PIN_REMS_STR-CLTYP sy-vline 
WA_PIN_REMS_STR-DURTN sy-vline 
WA_PIN_REMS_STR-LGART sy-vline 
WA_PIN_REMS_STR-TOTAM sy-vline 
WA_PIN_REMS_STR-CRTAM sy-vline 
WA_PIN_REMS_STR-UNPAM sy-vline 
WA_PIN_REMS_STR-BALAM sy-vline 
WA_PIN_REMS_STR-TOTNO sy-vline 
WA_PIN_REMS_STR-CRTNO sy-vline 
WA_PIN_REMS_STR-UNPNO sy-vline 
WA_PIN_REMS_STR-BALNO sy-vline 
WA_PIN_REMS_STR-UNIT sy-vline 
WA_PIN_REMS_STR-TAXCD sy-vline 
WA_PIN_REMS_STR-CUMTY sy-vline 
WA_PIN_REMS_STR-CALPR sy-vline 
WA_PIN_REMS_STR-ALGRP sy-vline 
WA_PIN_REMS_STR-ENDTE sy-vline 
WA_PIN_REMS_STR-BGDTE sy-vline 
WA_PIN_REMS_STR-CFPER sy-vline 
WA_PIN_REMS_STR-CLMNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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