ABAP Select data from SAP table PAYHX98 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PAYHX98 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 PAYHX98. 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 PAYHX98 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_PAYHX98 TYPE STANDARD TABLE OF PAYHX98,
      WA_PAYHX98 TYPE PAYHX98,
      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: <PAYHX98> TYPE PAYHX98.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PAYHX98.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PAYHX98
  INTO TABLE IT_PAYHX98.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAYHX98
*  INTO TABLE @DATA(IT_PAYHX982).
*--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_PAYHX98 INDEX 1 INTO DATA(WA_PAYHX982).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PAYHX98 ASSIGNING <PAYHX98>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAYHX98>-X01 = 1.
<PAYHX98>-X02 = 1.
<PAYHX98>-X03 = 1.
<PAYHX98>-X04 = 1.
<PAYHX98>-X05 = 1.

ENDLOOP.

LOOP AT IT_PAYHX98 INTO WA_PAYHX98.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAYHX98-X06, sy-vline,
  WA_PAYHX98-X07, sy-vline,
  WA_PAYHX98-X08, sy-vline,
  WA_PAYHX98-X09, sy-vline,
  WA_PAYHX98-X10, sy-vline,
  WA_PAYHX98-X11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAYHX98 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_PAYHX98 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_PAYHX98 INTO WA_PAYHX98.


*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_PAYHX98_STR, 
X01 TYPE STRING,
X02 TYPE STRING,
X03 TYPE STRING,
X04 TYPE STRING,
X05 TYPE STRING,
X06 TYPE STRING,
X07 TYPE STRING,
X08 TYPE STRING,
X09 TYPE STRING,
X10 TYPE STRING,
X11 TYPE STRING,
X12 TYPE STRING,
X13 TYPE STRING,
X14 TYPE STRING,
X15 TYPE STRING,
X16 TYPE STRING,
X17 TYPE STRING,
X18 TYPE STRING,
X19 TYPE STRING,
X20 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAYHX98_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_PAYHX98_STR-X01 sy-vline 
WA_PAYHX98_STR-X02 sy-vline 
WA_PAYHX98_STR-X03 sy-vline 
WA_PAYHX98_STR-X04 sy-vline 
WA_PAYHX98_STR-X05 sy-vline 
WA_PAYHX98_STR-X06 sy-vline 
WA_PAYHX98_STR-X07 sy-vline 
WA_PAYHX98_STR-X08 sy-vline 
WA_PAYHX98_STR-X09 sy-vline 
WA_PAYHX98_STR-X10 sy-vline 
WA_PAYHX98_STR-X11 sy-vline 
WA_PAYHX98_STR-X12 sy-vline 
WA_PAYHX98_STR-X13 sy-vline 
WA_PAYHX98_STR-X14 sy-vline 
WA_PAYHX98_STR-X15 sy-vline 
WA_PAYHX98_STR-X16 sy-vline 
WA_PAYHX98_STR-X17 sy-vline 
WA_PAYHX98_STR-X18 sy-vline 
WA_PAYHX98_STR-X19 sy-vline 
WA_PAYHX98_STR-X20 sy-vline      INTO ld_text SEPARATED BY SPACE.

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