ABAP Select data from SAP table /ISDFPS/MM_RL_DIALOG_FIELDS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/MM_RL_DIALOG_FIELDS 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 /ISDFPS/MM_RL_DIALOG_FIELDS. 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 /ISDFPS/MM_RL_DIALOG_FIELDS 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_/ISDFPS/MM_RL_DIALOG_FIELDS TYPE STANDARD TABLE OF /ISDFPS/MM_RL_DIALOG_FIELDS,
      WA_/ISDFPS/MM_RL_DIALOG_FIELDS TYPE /ISDFPS/MM_RL_DIALOG_FIELDS,
      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: </ISDFPS/MM_RL_DIALOG_FIELDS> TYPE /ISDFPS/MM_RL_DIALOG_FIELDS.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/MM_RL_DIALOG_FIELDS
  INTO TABLE IT_/ISDFPS/MM_RL_DIALOG_FIELDS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/MM_RL_DIALOG_FIELDS
*  INTO TABLE @DATA(IT_/ISDFPS/MM_RL_DIALOG_FIELDS2).
*--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_/ISDFPS/MM_RL_DIALOG_FIELDS INDEX 1 INTO DATA(WA_/ISDFPS/MM_RL_DIALOG_FIELDS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/MM_RL_DIALOG_FIELDS ASSIGNING </ISDFPS/MM_RL_DIALOG_FIELDS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/MM_RL_DIALOG_FIELDS>-MATNR = 1.
</ISDFPS/MM_RL_DIALOG_FIELDS>-MAKTX = 1.
</ISDFPS/MM_RL_DIALOG_FIELDS>-ORDQTY = 1.
</ISDFPS/MM_RL_DIALOG_FIELDS>-ORDUOM = 1.
</ISDFPS/MM_RL_DIALOG_FIELDS>-ORDDATE = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/MM_RL_DIALOG_FIELDS INTO WA_/ISDFPS/MM_RL_DIALOG_FIELDS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/MM_RL_DIALOG_FIELDS-BATCH, sy-vline,
  WA_/ISDFPS/MM_RL_DIALOG_FIELDS-SERNR, sy-vline,
  WA_/ISDFPS/MM_RL_DIALOG_FIELDS-HUNREXT, sy-vline,
  WA_/ISDFPS/MM_RL_DIALOG_FIELDS-PSPNR, sy-vline,
  WA_/ISDFPS/MM_RL_DIALOG_FIELDS-PSPNR_TEXT, sy-vline,
  WA_/ISDFPS/MM_RL_DIALOG_FIELDS-FORCE_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/MM_RL_DIALOG_FIELDS 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_/ISDFPS/MM_RL_DIALOG_FIELDS 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_/ISDFPS/MM_RL_DIALOG_FIELDS INTO WA_/ISDFPS/MM_RL_DIALOG_FIELDS.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MM_RL_DIALOG_FIELDS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MM_RL_DIALOG_FIELDS-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ORDUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MM_RL_DIALOG_FIELDS-ORDUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MM_RL_DIALOG_FIELDS-ORDUOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field SERNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MM_RL_DIALOG_FIELDS-SERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MM_RL_DIALOG_FIELDS-SERNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MM_RL_DIALOG_FIELDS-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MM_RL_DIALOG_FIELDS-PSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DFSFE, internal->external for field FORCE_OBJID
CALL FUNCTION 'CONVERSION_EXIT_DFSFE_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MM_RL_DIALOG_FIELDS-FORCE_OBJID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MM_RL_DIALOG_FIELDS-FORCE_OBJID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DFSFE, internal->external for field FORCE_PROV_OBJID
CALL FUNCTION 'CONVERSION_EXIT_DFSFE_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MM_RL_DIALOG_FIELDS-FORCE_PROV_OBJID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MM_RL_DIALOG_FIELDS-FORCE_PROV_OBJID.
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_/ISDFPS/MM_RL_DIALOG_FIELDS_STR, 
MATNR TYPE STRING,
MAKTX TYPE STRING,
ORDQTY TYPE STRING,
ORDUOM TYPE STRING,
ORDDATE TYPE STRING,
BATCH TYPE STRING,
SERNR TYPE STRING,
HUNREXT TYPE STRING,
PSPNR TYPE STRING,
PSPNR_TEXT TYPE STRING,
FORCE_ID TYPE STRING,
FORCE_CNT TYPE STRING,
FORCE_OBJID TYPE STRING,
FORCENAME TYPE STRING,
RL_STDPROV_FLAG TYPE STRING,
PLANT TYPE STRING,
PLANT_TEXT TYPE STRING,
STORAGE_LOC TYPE STRING,
STOR_LOC_T TYPE STRING,
FORCE_PROV_ID TYPE STRING,
FORCE_PROV_OBJID TYPE STRING,
FORCE_PROV_NAME TYPE STRING,
PLANT_PROV TYPE STRING,
PLANT_PROV_TXT TYPE STRING,
SLOC_PROV TYPE STRING,
SLOC_PROV_TXT TYPE STRING,
PRIO_URG TYPE STRING,
ADVCODE TYPE STRING,
STACODE TYPE STRING,
BSART TYPE STRING,
FLAG_LOAN_RET TYPE STRING,
FLAG_RETURN TYPE STRING,
FLAG_SERNR_PREQ TYPE STRING,
AFNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/MM_RL_DIALOG_FIELDS_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_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-MATNR sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-MAKTX sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-ORDQTY sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-ORDUOM sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-ORDDATE sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-BATCH sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-SERNR sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-HUNREXT sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-PSPNR sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-PSPNR_TEXT sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-FORCE_ID sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-FORCE_CNT sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-FORCE_OBJID sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-FORCENAME sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-RL_STDPROV_FLAG sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-PLANT sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-PLANT_TEXT sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-STORAGE_LOC sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-STOR_LOC_T sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-FORCE_PROV_ID sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-FORCE_PROV_OBJID sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-FORCE_PROV_NAME sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-PLANT_PROV sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-PLANT_PROV_TXT sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-SLOC_PROV sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-SLOC_PROV_TXT sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-PRIO_URG sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-ADVCODE sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-STACODE sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-BSART sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-FLAG_LOAN_RET sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-FLAG_RETURN sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-FLAG_SERNR_PREQ sy-vline 
WA_/ISDFPS/MM_RL_DIALOG_FIELDS_STR-AFNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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