ABAP Select data from SAP table EMIG_PAY_SELTNS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EMIG_PAY_SELTNS
*  INTO TABLE @DATA(IT_EMIG_PAY_SELTNS2).
*--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_EMIG_PAY_SELTNS INDEX 1 INTO DATA(WA_EMIG_PAY_SELTNS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EMIG_PAY_SELTNS>-OIBEL = 1.
<EMIG_PAY_SELTNS>-XILNR = 1.
<EMIG_PAY_SELTNS>-VIREF = 1.
<EMIG_PAY_SELTNS>-FIEDN = 1.
<EMIG_PAY_SELTNS>-GIART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EMIG_PAY_SELTNS-VIONT, sy-vline,
  WA_EMIG_PAY_SELTNS-AUGRD, sy-vline,
  WA_EMIG_PAY_SELTNS-BETRW, sy-vline,
  WA_EMIG_PAY_SELTNS-WAERS, sy-vline,
  WA_EMIG_PAY_SELTNS-SUBAP, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_EMIG_PAY_SELTNS 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_EMIG_PAY_SELTNS 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_EMIG_PAY_SELTNS INTO WA_EMIG_PAY_SELTNS.


*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 OIBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EMIG_PAY_SELTNS-OIBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EMIG_PAY_SELTNS-OIBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field XILNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EMIG_PAY_SELTNS-XILNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EMIG_PAY_SELTNS-XILNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VIREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EMIG_PAY_SELTNS-VIREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EMIG_PAY_SELTNS-VIREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GIART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EMIG_PAY_SELTNS-GIART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EMIG_PAY_SELTNS-GIART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VIONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EMIG_PAY_SELTNS-VIONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EMIG_PAY_SELTNS-VIONT.
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_EMIG_PAY_SELTNS_STR, 
OIBEL TYPE STRING,
XILNR TYPE STRING,
VIREF TYPE STRING,
FIEDN TYPE STRING,
GIART TYPE STRING,
VIONT TYPE STRING,
AUGRD TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
SUBAP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EMIG_PAY_SELTNS_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_EMIG_PAY_SELTNS_STR-OIBEL sy-vline 
WA_EMIG_PAY_SELTNS_STR-XILNR sy-vline 
WA_EMIG_PAY_SELTNS_STR-VIREF sy-vline 
WA_EMIG_PAY_SELTNS_STR-FIEDN sy-vline 
WA_EMIG_PAY_SELTNS_STR-GIART sy-vline 
WA_EMIG_PAY_SELTNS_STR-VIONT sy-vline 
WA_EMIG_PAY_SELTNS_STR-AUGRD sy-vline 
WA_EMIG_PAY_SELTNS_STR-BETRW sy-vline 
WA_EMIG_PAY_SELTNS_STR-WAERS sy-vline 
WA_EMIG_PAY_SELTNS_STR-SUBAP sy-vline      INTO ld_text SEPARATED BY SPACE.

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