ABAP Select data from SAP table PAYIN_NATIONAL into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAYIN_NATIONAL
*  INTO TABLE @DATA(IT_PAYIN_NATIONAL2).
*--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_PAYIN_NATIONAL INDEX 1 INTO DATA(WA_PAYIN_NATIONAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAYIN_NATIONAL>-EPF = 1.
<PAYIN_NATIONAL>-SAN = 1.
<PAYIN_NATIONAL>-GRY = 1.
<PAYIN_NATIONAL>-ESI = 1.
<PAYIN_NATIONAL>-S80 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAYIN_NATIONAL-S88, sy-vline,
  WA_PAYIN_NATIONAL-PET, sy-vline,
  WA_PAYIN_NATIONAL-IOS, sy-vline,
  WA_PAYIN_NATIONAL-HRA, sy-vline,
  WA_PAYIN_NATIONAL-CCO, sy-vline,
  WA_PAYIN_NATIONAL-PTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAYIN_NATIONAL 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_PAYIN_NATIONAL 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_PAYIN_NATIONAL INTO WA_PAYIN_NATIONAL.


*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_PAYIN_NATIONAL_STR, 
EPF TYPE STRING,
SAN TYPE STRING,
GRY TYPE STRING,
ESI TYPE STRING,
S80 TYPE STRING,
S88 TYPE STRING,
PET TYPE STRING,
IOS TYPE STRING,
HRA TYPE STRING,
CCO TYPE STRING,
PTX TYPE STRING,
EXM TYPE STRING,
HFS TYPE STRING,
S89 TYPE STRING,
LWF TYPE STRING,
GEM TYPE STRING,
RIC TYPE STRING,
RIP TYPE STRING,
TAN TYPE STRING,
MHRA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAYIN_NATIONAL_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_PAYIN_NATIONAL_STR-EPF sy-vline 
WA_PAYIN_NATIONAL_STR-SAN sy-vline 
WA_PAYIN_NATIONAL_STR-GRY sy-vline 
WA_PAYIN_NATIONAL_STR-ESI sy-vline 
WA_PAYIN_NATIONAL_STR-S80 sy-vline 
WA_PAYIN_NATIONAL_STR-S88 sy-vline 
WA_PAYIN_NATIONAL_STR-PET sy-vline 
WA_PAYIN_NATIONAL_STR-IOS sy-vline 
WA_PAYIN_NATIONAL_STR-HRA sy-vline 
WA_PAYIN_NATIONAL_STR-CCO sy-vline 
WA_PAYIN_NATIONAL_STR-PTX sy-vline 
WA_PAYIN_NATIONAL_STR-EXM sy-vline 
WA_PAYIN_NATIONAL_STR-HFS sy-vline 
WA_PAYIN_NATIONAL_STR-S89 sy-vline 
WA_PAYIN_NATIONAL_STR-LWF sy-vline 
WA_PAYIN_NATIONAL_STR-GEM sy-vline 
WA_PAYIN_NATIONAL_STR-RIC sy-vline 
WA_PAYIN_NATIONAL_STR-RIP sy-vline 
WA_PAYIN_NATIONAL_STR-TAN sy-vline 
WA_PAYIN_NATIONAL_STR-MHRA sy-vline      INTO ld_text SEPARATED BY SPACE.

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