ABAP Select data from SAP table METHODCALL into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM METHODCALL
*  INTO TABLE @DATA(IT_METHODCALL2).
*--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_METHODCALL INDEX 1 INTO DATA(WA_METHODCALL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<METHODCALL>-SELECTED = 1.
<METHODCALL>-RESULT = 1.
<METHODCALL>-CALL = 1.
<METHODCALL>-HANDLE = 1.
<METHODCALL>-METHOD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_METHODCALL-PAR1, sy-vline,
  WA_METHODCALL-PAR2, sy-vline,
  WA_METHODCALL-PAR3, sy-vline,
  WA_METHODCALL-PAR4, sy-vline,
  WA_METHODCALL-PAR5, sy-vline,
  WA_METHODCALL-PAR6, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_METHODCALL 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_METHODCALL 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_METHODCALL INTO WA_METHODCALL.


*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_METHODCALL_STR, 
SELECTED TYPE STRING,
RESULT TYPE STRING,
CALL TYPE STRING,
HANDLE TYPE STRING,
METHOD TYPE STRING,
PAR1 TYPE STRING,
PAR2 TYPE STRING,
PAR3 TYPE STRING,
PAR4 TYPE STRING,
PAR5 TYPE STRING,
PAR6 TYPE STRING,
PAR7 TYPE STRING,
PAR8 TYPE STRING,
PAR9 TYPE STRING,
PAR10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_METHODCALL_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_METHODCALL_STR-SELECTED sy-vline 
WA_METHODCALL_STR-RESULT sy-vline 
WA_METHODCALL_STR-CALL sy-vline 
WA_METHODCALL_STR-HANDLE sy-vline 
WA_METHODCALL_STR-METHOD sy-vline 
WA_METHODCALL_STR-PAR1 sy-vline 
WA_METHODCALL_STR-PAR2 sy-vline 
WA_METHODCALL_STR-PAR3 sy-vline 
WA_METHODCALL_STR-PAR4 sy-vline 
WA_METHODCALL_STR-PAR5 sy-vline 
WA_METHODCALL_STR-PAR6 sy-vline 
WA_METHODCALL_STR-PAR7 sy-vline 
WA_METHODCALL_STR-PAR8 sy-vline 
WA_METHODCALL_STR-PAR9 sy-vline 
WA_METHODCALL_STR-PAR10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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