ABAP Select data from SAP table RFM_SCHED_EXCESS_REQ_SD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFM_SCHED_EXCESS_REQ_SD
*  INTO TABLE @DATA(IT_RFM_SCHED_EXCESS_REQ_SD2).
*--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_RFM_SCHED_EXCESS_REQ_SD INDEX 1 INTO DATA(WA_RFM_SCHED_EXCESS_REQ_SD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFM_SCHED_EXCESS_REQ_SD>-RB_SALES = 1.
<RFM_SCHED_EXCESS_REQ_SD>-RB_CONTR = 1.
<RFM_SCHED_EXCESS_REQ_SD>-RB_ACC = 1.
<RFM_SCHED_EXCESS_REQ_SD>-RB_MSO = 1.
<RFM_SCHED_EXCESS_REQ_SD>-RB_STO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFM_SCHED_EXCESS_REQ_SD-SO_MATNR, sy-vline,
  WA_RFM_SCHED_EXCESS_REQ_SD-SO_MATKL, sy-vline,
  WA_RFM_SCHED_EXCESS_REQ_SD-SO_CHAR1, sy-vline,
  WA_RFM_SCHED_EXCESS_REQ_SD-SO_CHAR2, sy-vline,
  WA_RFM_SCHED_EXCESS_REQ_SD-SO_CHAR3, sy-vline,
  WA_RFM_SCHED_EXCESS_REQ_SD-SO_ERDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFM_SCHED_EXCESS_REQ_SD 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_RFM_SCHED_EXCESS_REQ_SD 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_RFM_SCHED_EXCESS_REQ_SD INTO WA_RFM_SCHED_EXCESS_REQ_SD.


*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_RFM_SCHED_EXCESS_REQ_SD_STR, 
RB_SALES TYPE STRING,
RB_CONTR TYPE STRING,
RB_ACC TYPE STRING,
RB_MSO TYPE STRING,
RB_STO TYPE STRING,
SO_MATNR TYPE STRING,
SO_MATKL TYPE STRING,
SO_CHAR1 TYPE STRING,
SO_CHAR2 TYPE STRING,
SO_CHAR3 TYPE STRING,
SO_ERDAT TYPE STRING,
SO_VKORG TYPE STRING,
SO_VTWEG TYPE STRING,
SO_SPART TYPE STRING,
SO_ERNAM TYPE STRING,
SO_WERKS TYPE STRING,
SO_VDATU TYPE STRING,
SO_LPRIO TYPE STRING,
SO_RCAT TYPE STRING,
SO_SEAYR TYPE STRING,
SO_SEASN TYPE STRING,
SO_COLL TYPE STRING,
SO_THEME TYPE STRING,
SO_AREL TYPE STRING,
SO_VBELN TYPE STRING,
SO_POSNR TYPE STRING,
SO_AUART TYPE STRING,
SO_KUNNR TYPE STRING,
SO_KUNWE TYPE STRING,
SO_KDGRP TYPE STRING,
SO_VKBUR TYPE STRING,
SO_IDIV TYPE STRING,
SO_ICDAT TYPE STRING,
SO_MVGR1 TYPE STRING,
SO_MVGR2 TYPE STRING,
SO_MVGR3 TYPE STRING,
SO_MVGR4 TYPE STRING,
SO_MVGR5 TYPE STRING,
P_ABGRU TYPE STRING,
SO_AUGRU TYPE STRING,
SO_CMGST TYPE STRING,
SO_UVALL TYPE STRING,
SO_UVFAK TYPE STRING,
SO_UVVLK TYPE STRING,
SO_EBELN TYPE STRING,
SO_EBELP TYPE STRING,
SO_BSART TYPE STRING,
SO_EKORG TYPE STRING,
SO_EKGRP TYPE STRING,
SO_RESWK TYPE STRING,
SO_AEDAT TYPE STRING,
P_BSGRU TYPE STRING,
SO_OPCNF TYPE STRING,
SO_OPASG TYPE STRING,
SO_OPDEL TYPE STRING,
SO_OPREF TYPE STRING,
SO_OPALG TYPE STRING,
P_REJ TYPE STRING,
P_PARALL TYPE STRING,
P_SERGRP TYPE STRING,
P_WP_CNT TYPE STRING,
P_PACKSZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFM_SCHED_EXCESS_REQ_SD_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_RFM_SCHED_EXCESS_REQ_SD_STR-RB_SALES sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-RB_CONTR sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-RB_ACC sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-RB_MSO sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-RB_STO sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_MATNR sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_MATKL sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_CHAR1 sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_CHAR2 sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_CHAR3 sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_ERDAT sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_VKORG sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_VTWEG sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_SPART sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_ERNAM sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_WERKS sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_VDATU sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_LPRIO sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_RCAT sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_SEAYR sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_SEASN sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_COLL sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_THEME sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_AREL sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_VBELN sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_POSNR sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_AUART sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_KUNNR sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_KUNWE sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_KDGRP sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_VKBUR sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_IDIV sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_ICDAT sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_MVGR1 sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_MVGR2 sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_MVGR3 sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_MVGR4 sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_MVGR5 sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-P_ABGRU sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_AUGRU sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_CMGST sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_UVALL sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_UVFAK sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_UVVLK sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_EBELN sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_EBELP sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_BSART sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_EKORG sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_EKGRP sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_RESWK sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_AEDAT sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-P_BSGRU sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_OPCNF sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_OPASG sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_OPDEL sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_OPREF sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-SO_OPALG sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-P_REJ sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-P_PARALL sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-P_SERGRP sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-P_WP_CNT sy-vline 
WA_RFM_SCHED_EXCESS_REQ_SD_STR-P_PACKSZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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