ABAP Select data from SAP table /SCWM/S_HUHDR_RSRC_MON into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_HUHDR_RSRC_MON
*  INTO TABLE @DATA(IT_/SCWM/S_HUHDR_RSRC_MON2).
*--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_/SCWM/S_HUHDR_RSRC_MON INDEX 1 INTO DATA(WA_/SCWM/S_HUHDR_RSRC_MON2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_HUHDR_RSRC_MON>-LGNUM = 1.
</SCWM/S_HUHDR_RSRC_MON>-RSRC = 1.
</SCWM/S_HUHDR_RSRC_MON>-RSRC_TYPE = 1.
</SCWM/S_HUHDR_RSRC_MON>-RSRC_GRP = 1.
</SCWM/S_HUHDR_RSRC_MON>-UNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_HUHDR_RSRC_MON-RFIND, sy-vline,
  WA_/SCWM/S_HUHDR_RSRC_MON-QUEUE, sy-vline,
  WA_/SCWM/S_HUHDR_RSRC_MON-HUIDENT, sy-vline,
  WA_/SCWM/S_HUHDR_RSRC_MON-PMAT, sy-vline,
  WA_/SCWM/S_HUHDR_RSRC_MON-HUIDENT_PARENT, sy-vline,
  WA_/SCWM/S_HUHDR_RSRC_MON-HUIDENT_TOP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_HUHDR_RSRC_MON 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_/SCWM/S_HUHDR_RSRC_MON 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_/SCWM/S_HUHDR_RSRC_MON INTO WA_/SCWM/S_HUHDR_RSRC_MON.


*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 HUID, internal->external for field HUIDENT
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_HUHDR_RSRC_MON-HUIDENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_HUHDR_RSRC_MON-HUIDENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_HUHDR_RSRC_MON-PMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_HUHDR_RSRC_MON-PMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field HUIDENT_PARENT
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_HUHDR_RSRC_MON-HUIDENT_PARENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_HUHDR_RSRC_MON-HUIDENT_PARENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field HUIDENT_TOP
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_HUHDR_RSRC_MON-HUIDENT_TOP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_HUHDR_RSRC_MON-HUIDENT_TOP.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PS_LEVEL_SEQ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_HUHDR_RSRC_MON-PS_LEVEL_SEQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_HUHDR_RSRC_MON-PS_LEVEL_SEQ.
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_/SCWM/S_HUHDR_RSRC_MON_STR, 
LGNUM TYPE STRING,
RSRC TYPE STRING,
RSRC_TYPE TYPE STRING,
RSRC_GRP TYPE STRING,
UNAME TYPE STRING,
RFIND TYPE STRING,
QUEUE TYPE STRING,
HUIDENT TYPE STRING,
PMAT TYPE STRING,
HUIDENT_PARENT TYPE STRING,
HUIDENT_TOP TYPE STRING,
LETYP TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_DATE TYPE STRING,
CREATED_TIME TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_DATE TYPE STRING,
CHANGED_TIME TYPE STRING,
G_WEIGHT TYPE STRING,
N_WEIGHT TYPE STRING,
UNIT_GW TYPE STRING,
T_WEIGHT TYPE STRING,
UNIT_TW TYPE STRING,
G_VOLUME TYPE STRING,
N_VOLUME TYPE STRING,
UNIT_GV TYPE STRING,
T_VOLUME TYPE STRING,
UNIT_TV TYPE STRING,
G_CAPA TYPE STRING,
N_CAPA TYPE STRING,
T_CAPA TYPE STRING,
LENGTH TYPE STRING,
WIDTH TYPE STRING,
HEIGHT TYPE STRING,
UNIT_LWH TYPE STRING,
MAX_WEIGHT TYPE STRING,
TOLW TYPE STRING,
TARE_VAR TYPE STRING,
MAX_VOLUME TYPE STRING,
TOLV TYPE STRING,
CLOSED_PACKAGE TYPE STRING,
MAX_CAPA TYPE STRING,
MAX_LENGTH TYPE STRING,
MAX_WIDTH TYPE STRING,
MAX_HEIGHT TYPE STRING,
UNIT_MAX_LWH TYPE STRING,
VHI TYPE STRING,
FLGAVQ TYPE STRING,
FLGMOVE TYPE STRING,
PROCS TYPE STRING,
COPST TYPE STRING,
PRCES TYPE STRING,
LOGPOS TYPE STRING,
LOGPOS_EXT TYPE STRING,
DSTGRP TYPE STRING,
WKLID TYPE STRING,
PMTYP TYPE STRING,
PACKGR TYPE STRING,
PHYSTAT TYPE STRING,
TOP TYPE STRING,
BOTTOM TYPE STRING,
STSMA TYPE STRING,
PS_LEVEL_SEQ TYPE STRING,
HZMT TYPE STRING,
PMTEXT TYPE STRING,
PMCAT TYPE STRING,
HUTYPGRP TYPE STRING,
KAPAP TYPE STRING,
HDR_EPC TYPE STRING,
SYSTEM_STATUS TYPE STRING,
USER_STATUS TYPE STRING,
HUHDR_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_HUHDR_RSRC_MON_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_/SCWM/S_HUHDR_RSRC_MON_STR-LGNUM sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-RSRC sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-RSRC_TYPE sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-RSRC_GRP sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-UNAME sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-RFIND sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-QUEUE sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-HUIDENT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-PMAT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-HUIDENT_PARENT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-HUIDENT_TOP sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-LETYP sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-CREATED_BY sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-CREATED_DATE sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-CREATED_TIME sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-CHANGED_BY sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-CHANGED_DATE sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-CHANGED_TIME sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-G_WEIGHT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-N_WEIGHT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-UNIT_GW sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-T_WEIGHT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-UNIT_TW sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-G_VOLUME sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-N_VOLUME sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-UNIT_GV sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-T_VOLUME sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-UNIT_TV sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-G_CAPA sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-N_CAPA sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-T_CAPA sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-LENGTH sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-WIDTH sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-HEIGHT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-UNIT_LWH sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-MAX_WEIGHT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-TOLW sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-TARE_VAR sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-MAX_VOLUME sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-TOLV sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-CLOSED_PACKAGE sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-MAX_CAPA sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-MAX_LENGTH sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-MAX_WIDTH sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-MAX_HEIGHT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-UNIT_MAX_LWH sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-VHI sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-FLGAVQ sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-FLGMOVE sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-PROCS sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-COPST sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-PRCES sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-LOGPOS sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-LOGPOS_EXT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-DSTGRP sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-WKLID sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-PMTYP sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-PACKGR sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-PHYSTAT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-TOP sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-BOTTOM sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-STSMA sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-PS_LEVEL_SEQ sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-HZMT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-PMTEXT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-PMCAT sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-HUTYPGRP sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-KAPAP sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-HDR_EPC sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-SYSTEM_STATUS sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-USER_STATUS sy-vline 
WA_/SCWM/S_HUHDR_RSRC_MON_STR-HUHDR_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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