ABAP Select data from SAP table PAYGB_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 PAYGB_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 PAYGB_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 PAYGB_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_PAYGB_NATIONAL TYPE STANDARD TABLE OF PAYGB_NATIONAL,
      WA_PAYGB_NATIONAL TYPE PAYGB_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: <PAYGB_NATIONAL> TYPE PAYGB_NATIONAL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAYGB_NATIONAL
*  INTO TABLE @DATA(IT_PAYGB_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_PAYGB_NATIONAL INDEX 1 INTO DATA(WA_PAYGB_NATIONAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAYGB_NATIONAL>-ST = 1.
<PAYGB_NATIONAL>-BEGDA = 1.
<PAYGB_NATIONAL>-ENDDA = 1.
<PAYGB_NATIONAL>-TXNUM = 1.
<PAYGB_NATIONAL>-TXLET = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAYGB_NATIONAL-TXBAS, sy-vline,
  WA_PAYGB_NATIONAL-TXRFS, sy-vline,
  WA_PAYGB_NATIONAL-TXSTK, sy-vline,
  WA_PAYGB_NATIONAL-P45PY_OLD, sy-vline,
  WA_PAYGB_NATIONAL-P45TX_OLD, sy-vline,
  WA_PAYGB_NATIONAL-TXWKN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAYGB_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_PAYGB_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_PAYGB_NATIONAL INTO WA_PAYGB_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_PAYGB_NATIONAL_STR, 
ST TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
TXNUM TYPE STRING,
TXLET TYPE STRING,
TXBAS TYPE STRING,
TXRFS TYPE STRING,
TXSTK TYPE STRING,
P45PY_OLD TYPE STRING,
P45TX_OLD TYPE STRING,
TXWKN TYPE STRING,
TXMTN TYPE STRING,
CMTPY_OLD TYPE STRING,
CMTXP_OLD TYPE STRING,
TXREG TYPE STRING,
TXNMB TYPE STRING,
TXCOD TYPE STRING,
CUTXC TYPE STRING,
ADJAMT TYPE STRING,
ADJUST TYPE STRING,
MPT TYPE STRING,
MPTGRS TYPE STRING,
MPTTAX TYPE STRING,
CNTXC TYPE STRING,
P45PY TYPE STRING,
P45TX TYPE STRING,
CMTPY TYPE STRING,
CMTXP TYPE STRING,
COURT TYPE STRING,
PENS TYPE STRING,
EXCEP TYPE STRING,
CAR TYPE STRING,
MSA TYPE STRING,
AHPS TYPE STRING,
PYSQN TYPE STRING,
NRPRD TYPE STRING,
CSQNR TYPE STRING,
GAPPRD TYPE STRING,
NIPAY TYPE STRING,
NIC TYPE STRING,
CNIC TYPE STRING,
NIRA TYPE STRING,
CARCO2 TYPE STRING,
COSTS TYPE STRING,
WEARN TYPE STRING,
MSAX TYPE STRING,
ME TYPE STRING,
RTI TYPE STRING,
RTINI TYPE STRING,
PAE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAYGB_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_PAYGB_NATIONAL_STR-ST sy-vline 
WA_PAYGB_NATIONAL_STR-BEGDA sy-vline 
WA_PAYGB_NATIONAL_STR-ENDDA sy-vline 
WA_PAYGB_NATIONAL_STR-TXNUM sy-vline 
WA_PAYGB_NATIONAL_STR-TXLET sy-vline 
WA_PAYGB_NATIONAL_STR-TXBAS sy-vline 
WA_PAYGB_NATIONAL_STR-TXRFS sy-vline 
WA_PAYGB_NATIONAL_STR-TXSTK sy-vline 
WA_PAYGB_NATIONAL_STR-P45PY_OLD sy-vline 
WA_PAYGB_NATIONAL_STR-P45TX_OLD sy-vline 
WA_PAYGB_NATIONAL_STR-TXWKN sy-vline 
WA_PAYGB_NATIONAL_STR-TXMTN sy-vline 
WA_PAYGB_NATIONAL_STR-CMTPY_OLD sy-vline 
WA_PAYGB_NATIONAL_STR-CMTXP_OLD sy-vline 
WA_PAYGB_NATIONAL_STR-TXREG sy-vline 
WA_PAYGB_NATIONAL_STR-TXNMB sy-vline 
WA_PAYGB_NATIONAL_STR-TXCOD sy-vline 
WA_PAYGB_NATIONAL_STR-CUTXC sy-vline 
WA_PAYGB_NATIONAL_STR-ADJAMT sy-vline 
WA_PAYGB_NATIONAL_STR-ADJUST sy-vline 
WA_PAYGB_NATIONAL_STR-MPT sy-vline 
WA_PAYGB_NATIONAL_STR-MPTGRS sy-vline 
WA_PAYGB_NATIONAL_STR-MPTTAX sy-vline 
WA_PAYGB_NATIONAL_STR-CNTXC sy-vline 
WA_PAYGB_NATIONAL_STR-P45PY sy-vline 
WA_PAYGB_NATIONAL_STR-P45TX sy-vline 
WA_PAYGB_NATIONAL_STR-CMTPY sy-vline 
WA_PAYGB_NATIONAL_STR-CMTXP sy-vline 
WA_PAYGB_NATIONAL_STR-COURT sy-vline 
WA_PAYGB_NATIONAL_STR-PENS sy-vline 
WA_PAYGB_NATIONAL_STR-EXCEP sy-vline 
WA_PAYGB_NATIONAL_STR-CAR sy-vline 
WA_PAYGB_NATIONAL_STR-MSA sy-vline 
WA_PAYGB_NATIONAL_STR-AHPS sy-vline 
WA_PAYGB_NATIONAL_STR-PYSQN sy-vline 
WA_PAYGB_NATIONAL_STR-NRPRD sy-vline 
WA_PAYGB_NATIONAL_STR-CSQNR sy-vline 
WA_PAYGB_NATIONAL_STR-GAPPRD sy-vline 
WA_PAYGB_NATIONAL_STR-NIPAY sy-vline 
WA_PAYGB_NATIONAL_STR-NIC sy-vline 
WA_PAYGB_NATIONAL_STR-CNIC sy-vline 
WA_PAYGB_NATIONAL_STR-NIRA sy-vline 
WA_PAYGB_NATIONAL_STR-CARCO2 sy-vline 
WA_PAYGB_NATIONAL_STR-COSTS sy-vline 
WA_PAYGB_NATIONAL_STR-WEARN sy-vline 
WA_PAYGB_NATIONAL_STR-MSAX sy-vline 
WA_PAYGB_NATIONAL_STR-ME sy-vline 
WA_PAYGB_NATIONAL_STR-RTI sy-vline 
WA_PAYGB_NATIONAL_STR-RTINI sy-vline 
WA_PAYGB_NATIONAL_STR-PAE sy-vline      INTO ld_text SEPARATED BY SPACE.

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