ABAP Select data from SAP table CRMS_FICA_WLI_HEADER_RFC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS_FICA_WLI_HEADER_RFC
*  INTO TABLE @DATA(IT_CRMS_FICA_WLI_HEADER_RFC2).
*--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_CRMS_FICA_WLI_HEADER_RFC INDEX 1 INTO DATA(WA_CRMS_FICA_WLI_HEADER_RFC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS_FICA_WLI_HEADER_RFC>-WLIGUID = 1.
<CRMS_FICA_WLI_HEADER_RFC>-GPART = 1.
<CRMS_FICA_WLI_HEADER_RFC>-VKGRP = 1.
<CRMS_FICA_WLI_HEADER_RFC>-VTGRP = 1.
<CRMS_FICA_WLI_HEADER_RFC>-GRPFIELD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS_FICA_WLI_HEADER_RFC-ITEMGRP, sy-vline,
  WA_CRMS_FICA_WLI_HEADER_RFC-ORIG, sy-vline,
  WA_CRMS_FICA_WLI_HEADER_RFC-ORIGKEY, sy-vline,
  WA_CRMS_FICA_WLI_HEADER_RFC-BUKRS, sy-vline,
  WA_CRMS_FICA_WLI_HEADER_RFC-WLICAT, sy-vline,
  WA_CRMS_FICA_WLI_HEADER_RFC-STRAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS_FICA_WLI_HEADER_RFC 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_CRMS_FICA_WLI_HEADER_RFC 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_CRMS_FICA_WLI_HEADER_RFC INTO WA_CRMS_FICA_WLI_HEADER_RFC.


*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_CRMS_FICA_WLI_HEADER_RFC-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS_FICA_WLI_HEADER_RFC-GPART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONTACTPERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS_FICA_WLI_HEADER_RFC-CONTACTPERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS_FICA_WLI_HEADER_RFC-CONTACTPERS.
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_CRMS_FICA_WLI_HEADER_RFC_STR, 
WLIGUID TYPE STRING,
GPART TYPE STRING,
VKGRP TYPE STRING,
VTGRP TYPE STRING,
GRPFIELD TYPE STRING,
ITEMGRP TYPE STRING,
ORIG TYPE STRING,
ORIGKEY TYPE STRING,
BUKRS TYPE STRING,
WLICAT TYPE STRING,
STRAT TYPE STRING,
STEP TYPE STRING,
ACKEY TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
AEDAT TYPE STRING,
AETIM TYPE STRING,
AENAM TYPE STRING,
SCORE TYPE STRING,
XMAND TYPE STRING,
STAT TYPE STRING,
SUBSTAT TYPE STRING,
SUCCDES TYPE STRING,
RSTIMESTAMP TYPE STRING,
RSRES TYPE STRING,
RSTIMEZONE TYPE STRING,
RSDATE TYPE STRING,
RSTIME TYPE STRING,
ASSIGNTYP TYPE STRING,
ASSIGNRES TYPE STRING,
WLINEXT TYPE STRING,
WLIDENT TYPE STRING,
CONTACTPERS TYPE STRING,
CENTER TYPE STRING,
UNIT TYPE STRING,
AGENT TYPE STRING,
CENTERTXT TYPE STRING,
UNITTXT TYPE STRING,
AGENTTXT TYPE STRING,
EXDAT TYPE STRING,
DESCR TYPE STRING,
LASTCOLLCONT TYPE STRING,
ACDATEAR TYPE STRING,
ACDATLAT TYPE STRING,
ACDAYSLEFT TYPE STRING,
XCOLLCASE TYPE STRING,
ACPROF TYPE STRING,
STAKZ TYPE STRING,
SUBAP TYPE STRING,
MAHNV TYPE STRING,
MAHNS TYPE STRING,
WLITYPE TYPE STRING,
STARTDATE TYPE STRING,
STARTTIME TYPE STRING,
ENDTIME TYPE STRING,
ON_HOLD TYPE STRING,
ICON TYPE STRING,
OPAMOUNT_H TYPE STRING,
OVAMOUNT_H TYPE STRING,
REAMOUNT_H TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS_FICA_WLI_HEADER_RFC_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_CRMS_FICA_WLI_HEADER_RFC_STR-WLIGUID sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-GPART sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-VKGRP sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-VTGRP sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-GRPFIELD sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ITEMGRP sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ORIG sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ORIGKEY sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-BUKRS sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-WLICAT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-STRAT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-STEP sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ACKEY sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-BETRW sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-WAERS sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ERNAM sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ERDAT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ERTIM sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-AEDAT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-AETIM sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-AENAM sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-SCORE sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-XMAND sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-STAT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-SUBSTAT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-SUCCDES sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-RSTIMESTAMP sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-RSRES sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-RSTIMEZONE sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-RSDATE sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-RSTIME sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ASSIGNTYP sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ASSIGNRES sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-WLINEXT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-WLIDENT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-CONTACTPERS sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-CENTER sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-UNIT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-AGENT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-CENTERTXT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-UNITTXT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-AGENTTXT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-EXDAT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-DESCR sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-LASTCOLLCONT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ACDATEAR sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ACDATLAT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ACDAYSLEFT sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-XCOLLCASE sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ACPROF sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-STAKZ sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-SUBAP sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-MAHNV sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-MAHNS sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-WLITYPE sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-STARTDATE sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-STARTTIME sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ENDTIME sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ON_HOLD sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-ICON sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-OPAMOUNT_H sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-OVAMOUNT_H sy-vline 
WA_CRMS_FICA_WLI_HEADER_RFC_STR-REAMOUNT_H sy-vline      INTO ld_text SEPARATED BY SPACE.

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