ABAP Select data from SAP table FPAYH_PAY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FPAYH_PAY
*  INTO TABLE @DATA(IT_FPAYH_PAY2).
*--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_FPAYH_PAY INDEX 1 INTO DATA(WA_FPAYH_PAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FPAYH_PAY>-DOC1T = 1.
<FPAYH_PAY>-DOC1R = 1.
<FPAYH_PAY>-SRTGB = 1.
<FPAYH_PAY>-WAERS = 1.
<FPAYH_PAY>-RWBTR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FPAYH_PAY-RWSKT, sy-vline,
  WA_FPAYH_PAY-WQSTE, sy-vline,
  WA_FPAYH_PAY-WABZG, sy-vline,
  WA_FPAYH_PAY-WRBTR, sy-vline,
  WA_FPAYH_PAY-RBETR, sy-vline,
  WA_FPAYH_PAY-RSKON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FPAYH_PAY 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_FPAYH_PAY 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_FPAYH_PAY INTO WA_FPAYH_PAY.


*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.

*Conversion exit AU132, internal->external for field WEFMX
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FPAYH_PAY-WEFMX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FPAYH_PAY-WEFMX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WEFRS
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FPAYH_PAY-WEFRS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FPAYH_PAY-WEFRS.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FPAYH_PAY_STR, 
DOC1T TYPE STRING,
DOC1R TYPE STRING,
SRTGB TYPE STRING,
WAERS TYPE STRING,
RWBTR TYPE STRING,
RWSKT TYPE STRING,
WQSTE TYPE STRING,
WABZG TYPE STRING,
WRBTR TYPE STRING,
RBETR TYPE STRING,
RSKON TYPE STRING,
XKDFB TYPE STRING,
ZALDT TYPE STRING,
AUSFD TYPE STRING,
VALUT TYPE STRING,
CRVAL TYPE STRING,
RPOST TYPE STRING,
RTEXT TYPE STRING,
PAYGR TYPE STRING,
WDATE TYPE STRING,
WEFAE TYPE STRING,
WEAMX TYPE STRING,
WEFMX TYPE STRING,
WEFRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FPAYH_PAY_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_FPAYH_PAY_STR-DOC1T sy-vline 
WA_FPAYH_PAY_STR-DOC1R sy-vline 
WA_FPAYH_PAY_STR-SRTGB sy-vline 
WA_FPAYH_PAY_STR-WAERS sy-vline 
WA_FPAYH_PAY_STR-RWBTR sy-vline 
WA_FPAYH_PAY_STR-RWSKT sy-vline 
WA_FPAYH_PAY_STR-WQSTE sy-vline 
WA_FPAYH_PAY_STR-WABZG sy-vline 
WA_FPAYH_PAY_STR-WRBTR sy-vline 
WA_FPAYH_PAY_STR-RBETR sy-vline 
WA_FPAYH_PAY_STR-RSKON sy-vline 
WA_FPAYH_PAY_STR-XKDFB sy-vline 
WA_FPAYH_PAY_STR-ZALDT sy-vline 
WA_FPAYH_PAY_STR-AUSFD sy-vline 
WA_FPAYH_PAY_STR-VALUT sy-vline 
WA_FPAYH_PAY_STR-CRVAL sy-vline 
WA_FPAYH_PAY_STR-RPOST sy-vline 
WA_FPAYH_PAY_STR-RTEXT sy-vline 
WA_FPAYH_PAY_STR-PAYGR sy-vline 
WA_FPAYH_PAY_STR-WDATE sy-vline 
WA_FPAYH_PAY_STR-WEFAE sy-vline 
WA_FPAYH_PAY_STR-WEAMX sy-vline 
WA_FPAYH_PAY_STR-WEFMX sy-vline 
WA_FPAYH_PAY_STR-WEFRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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