ABAP Select data from SAP table EIAC_ONE_PAY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EIAC_ONE_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 EIAC_ONE_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 EIAC_ONE_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_EIAC_ONE_PAY TYPE STANDARD TABLE OF EIAC_ONE_PAY,
      WA_EIAC_ONE_PAY TYPE EIAC_ONE_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: <EIAC_ONE_PAY> TYPE EIAC_ONE_PAY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EIAC_ONE_PAY
*  INTO TABLE @DATA(IT_EIAC_ONE_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_EIAC_ONE_PAY INDEX 1 INTO DATA(WA_EIAC_ONE_PAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EIAC_ONE_PAY>-GPART = 1.
<EIAC_ONE_PAY>-ADDRESS = 1.
<EIAC_ONE_PAY>-VKONT = 1.
<EIAC_ONE_PAY>-VKBEZ = 1.
<EIAC_ONE_PAY>-KOINH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EIAC_ONE_PAY-BKVID, sy-vline,
  WA_EIAC_ONE_PAY-BANKS, sy-vline,
  WA_EIAC_ONE_PAY-BANKL, sy-vline,
  WA_EIAC_ONE_PAY-BANKN, sy-vline,
  WA_EIAC_ONE_PAY-BANKA, sy-vline,
  WA_EIAC_ONE_PAY-CURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EIAC_ONE_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_EIAC_ONE_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_EIAC_ONE_PAY INTO WA_EIAC_ONE_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 ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EIAC_ONE_PAY-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EIAC_ONE_PAY-GPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EIAC_ONE_PAY-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EIAC_ONE_PAY-VKONT.
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_EIAC_ONE_PAY_STR, 
GPART TYPE STRING,
ADDRESS TYPE STRING,
VKONT TYPE STRING,
VKBEZ TYPE STRING,
KOINH TYPE STRING,
BKVID TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
BANKA TYPE STRING,
CURRENCY TYPE STRING,
TOTAL TYPE STRING,
CCNAME TYPE STRING,
CCARD_ID TYPE STRING,
CCINS TYPE STRING,
CCNUM TYPE STRING,
DATBI TYPE STRING,
RADIO_BANK TYPE STRING,
RADIO_BANK_NEW TYPE STRING,
RADIO_BANK_OLD TYPE STRING,
RADIO_CARD TYPE STRING,
RADIO_CARD_NEW TYPE STRING,
RADIO_CARD_OLD TYPE STRING,
OPEN_ITEMS_MAX TYPE STRING,
BANK_MAX TYPE STRING,
CARD_MAX TYPE STRING,
DETAIL_MAX TYPE STRING,
RADIO_OTHERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EIAC_ONE_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_EIAC_ONE_PAY_STR-GPART sy-vline 
WA_EIAC_ONE_PAY_STR-ADDRESS sy-vline 
WA_EIAC_ONE_PAY_STR-VKONT sy-vline 
WA_EIAC_ONE_PAY_STR-VKBEZ sy-vline 
WA_EIAC_ONE_PAY_STR-KOINH sy-vline 
WA_EIAC_ONE_PAY_STR-BKVID sy-vline 
WA_EIAC_ONE_PAY_STR-BANKS sy-vline 
WA_EIAC_ONE_PAY_STR-BANKL sy-vline 
WA_EIAC_ONE_PAY_STR-BANKN sy-vline 
WA_EIAC_ONE_PAY_STR-BANKA sy-vline 
WA_EIAC_ONE_PAY_STR-CURRENCY sy-vline 
WA_EIAC_ONE_PAY_STR-TOTAL sy-vline 
WA_EIAC_ONE_PAY_STR-CCNAME sy-vline 
WA_EIAC_ONE_PAY_STR-CCARD_ID sy-vline 
WA_EIAC_ONE_PAY_STR-CCINS sy-vline 
WA_EIAC_ONE_PAY_STR-CCNUM sy-vline 
WA_EIAC_ONE_PAY_STR-DATBI sy-vline 
WA_EIAC_ONE_PAY_STR-RADIO_BANK sy-vline 
WA_EIAC_ONE_PAY_STR-RADIO_BANK_NEW sy-vline 
WA_EIAC_ONE_PAY_STR-RADIO_BANK_OLD sy-vline 
WA_EIAC_ONE_PAY_STR-RADIO_CARD sy-vline 
WA_EIAC_ONE_PAY_STR-RADIO_CARD_NEW sy-vline 
WA_EIAC_ONE_PAY_STR-RADIO_CARD_OLD sy-vline 
WA_EIAC_ONE_PAY_STR-OPEN_ITEMS_MAX sy-vline 
WA_EIAC_ONE_PAY_STR-BANK_MAX sy-vline 
WA_EIAC_ONE_PAY_STR-CARD_MAX sy-vline 
WA_EIAC_ONE_PAY_STR-DETAIL_MAX sy-vline 
WA_EIAC_ONE_PAY_STR-RADIO_OTHERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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