ABAP Select data from SAP table FMUDRELC 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 FMUDRELC 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 FMUDRELC. 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 FMUDRELC 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_FMUDRELC TYPE STANDARD TABLE OF FMUDRELC,
      WA_FMUDRELC TYPE FMUDRELC,
      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: <FMUDRELC> TYPE FMUDRELC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMUDRELC
*  INTO TABLE @DATA(IT_FMUDRELC2).
*--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_FMUDRELC INDEX 1 INTO DATA(WA_FMUDRELC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMUDRELC>-MANDT = 1.
<FMUDRELC>-SFIPEX = 1.
<FMUDRELC>-SFICTR = 1.
<FMUDRELC>-SFONDS = 1.
<FMUDRELC>-SFAREA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMUDRELC-RFIPEX, sy-vline,
  WA_FMUDRELC-RFICTR, sy-vline,
  WA_FMUDRELC-RFONDS, sy-vline,
  WA_FMUDRELC-RFAREA, sy-vline,
  WA_FMUDRELC-GJAHR, sy-vline,
  WA_FMUDRELC-FIKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMUDRELC 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_FMUDRELC 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_FMUDRELC INTO WA_FMUDRELC.


*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 FIPEX, internal->external for field SFIPEX
CALL FUNCTION 'CONVERSION_EXIT_FIPEX_OUTPUT'
  EXPORTING
    input =                      WA_FMUDRELC-SFIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMUDRELC-SFIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FIPEX, internal->external for field RFIPEX
CALL FUNCTION 'CONVERSION_EXIT_FIPEX_OUTPUT'
  EXPORTING
    input =                      WA_FMUDRELC-RFIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMUDRELC-RFIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMUDRELC-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMUDRELC-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMUDRELC-BUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMUDRELC-BUART.
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_FMUDRELC_STR, 
MANDT TYPE STRING,
SFIPEX TYPE STRING,
SFICTR TYPE STRING,
SFONDS TYPE STRING,
SFAREA TYPE STRING,
RFIPEX TYPE STRING,
RFICTR TYPE STRING,
RFONDS TYPE STRING,
RFAREA TYPE STRING,
GJAHR TYPE STRING,
FIKRS TYPE STRING,
BUART TYPE STRING,
DATBIS TYPE STRING,
DATAB TYPE STRING,
DBACTION TYPE STRING,
TACTION TYPE STRING,
AENNAME TYPE STRING,
ERHPROZ TYPE STRING,
COMPROZ TYPE STRING,
RPAY TYPE STRING,
RCOM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMUDRELC_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_FMUDRELC_STR-MANDT sy-vline 
WA_FMUDRELC_STR-SFIPEX sy-vline 
WA_FMUDRELC_STR-SFICTR sy-vline 
WA_FMUDRELC_STR-SFONDS sy-vline 
WA_FMUDRELC_STR-SFAREA sy-vline 
WA_FMUDRELC_STR-RFIPEX sy-vline 
WA_FMUDRELC_STR-RFICTR sy-vline 
WA_FMUDRELC_STR-RFONDS sy-vline 
WA_FMUDRELC_STR-RFAREA sy-vline 
WA_FMUDRELC_STR-GJAHR sy-vline 
WA_FMUDRELC_STR-FIKRS sy-vline 
WA_FMUDRELC_STR-BUART sy-vline 
WA_FMUDRELC_STR-DATBIS sy-vline 
WA_FMUDRELC_STR-DATAB sy-vline 
WA_FMUDRELC_STR-DBACTION sy-vline 
WA_FMUDRELC_STR-TACTION sy-vline 
WA_FMUDRELC_STR-AENNAME sy-vline 
WA_FMUDRELC_STR-ERHPROZ sy-vline 
WA_FMUDRELC_STR-COMPROZ sy-vline 
WA_FMUDRELC_STR-RPAY sy-vline 
WA_FMUDRELC_STR-RCOM sy-vline      INTO ld_text SEPARATED BY SPACE.

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