ABAP Select data from SAP table CMDCHGPROCSTEP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMDCHGPROCSTEP
*  INTO TABLE @DATA(IT_CMDCHGPROCSTEP2).
*--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_CMDCHGPROCSTEP INDEX 1 INTO DATA(WA_CMDCHGPROCSTEP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMDCHGPROCSTEP>-MANDT = 1.
<CMDCHGPROCSTEP>-MDCHGPROCESSSTEPUUID = 1.
<CMDCHGPROCSTEP>-MASTERDATACHANGEPROCESSUUID = 1.
<CMDCHGPROCSTEP>-MDCHGPROCESSUPDATETOKEN = 1.
<CMDCHGPROCSTEP>-MASTERDATACHANGEPROCESS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMDCHGPROCSTEP-MDCHGPROCESSSTEP, sy-vline,
  WA_CMDCHGPROCSTEP-MDCHGPROCESSSTEPTYPE, sy-vline,
  WA_CMDCHGPROCSTEP-MDCHGPROCESSSTEPDESCRIPTION, sy-vline,
  WA_CMDCHGPROCSTEP-MDCHGPROCESSSTEPSTATUS, sy-vline,
  WA_CMDCHGPROCSTEP-MDCHANGEPROCESSSTEPHASERROR, sy-vline,
  WA_CMDCHGPROCSTEP-MDCHGPROCSTEPNUMBEROFWARNINGS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMDCHGPROCSTEP 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_CMDCHGPROCSTEP 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_CMDCHGPROCSTEP INTO WA_CMDCHGPROCSTEP.


*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 CUNIT, internal->external for field MDCHANGEPROCSTEPPROGRESSUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMDCHGPROCSTEP-MDCHANGEPROCSTEPPROGRESSUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMDCHGPROCSTEP-MDCHANGEPROCSTEPPROGRESSUNIT.
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_CMDCHGPROCSTEP_STR, 
MANDT TYPE STRING,
MDCHGPROCESSSTEPUUID TYPE STRING,
MASTERDATACHANGEPROCESSUUID TYPE STRING,
MDCHGPROCESSUPDATETOKEN TYPE STRING,
MASTERDATACHANGEPROCESS TYPE STRING,
MDCHGPROCESSSTEP TYPE STRING,
MDCHGPROCESSSTEPTYPE TYPE STRING,
MDCHGPROCESSSTEPDESCRIPTION TYPE STRING,
MDCHGPROCESSSTEPSTATUS TYPE STRING,
MDCHANGEPROCESSSTEPHASERROR TYPE STRING,
MDCHGPROCSTEPNUMBEROFWARNINGS TYPE STRING,
MDCHGPROCESSSTEPNUMBEROFERRORS TYPE STRING,
MDCHGPROCSTPNUMBEROFEXCEPTIONS TYPE STRING,
MDCHGPROCMODIFDOBJECTSCOUNT TYPE STRING,
MDCHGPROCSTPPROGRESSRATIOINPCT TYPE STRING,
MDCHANGEPROCSTEPPROGRESSUNIT TYPE STRING,
MDCHGPROCESSSTEPADAPTER TYPE STRING,
MDCHGPROCESSSTEPADAPTERCONFIGN TYPE STRING,
MDCHGPROCESSSTEPCHKPOINTISACTV TYPE STRING,
MDCHGPROCESSSTEPORIGLNUMBER TYPE STRING,
MDCHGPROCESSSTEPORIGLSQNCNMBR TYPE STRING,
MDCHGPROCESSSTEPSTARTISREQD TYPE STRING,
MDCHGPROCESSSRCEOBJECTTYPECODE TYPE STRING,
MDCHGPROCESSSTEPFILTERCHAIN TYPE STRING,
MDCHGPROCESSSTEPSTARTDATETIME TYPE STRING,
MDCHGPROCESSSTEPFINISHDATETIME TYPE STRING,
MDCHGPROCESSSTEPCONFIGN TYPE STRING,
MDCHGPROCESSSTPOWNCONFIGNISRQD TYPE STRING,
MDCHANGEPROCESSSTEPISTRANSIENT TYPE STRING,
MDCHGPROCISADHOCSTEP TYPE STRING,
MDCHGPROCSTEPSCHEDULEISRECMDD TYPE STRING,
MDCHGPROCESSSRCESYSTEM TYPE STRING,
MDCHGPROCESSSRCEOBJECT TYPE STRING,
MDCHGPROCSTEPISROLLBACKALLOWED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMDCHGPROCSTEP_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_CMDCHGPROCSTEP_STR-MANDT sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPUUID sy-vline 
WA_CMDCHGPROCSTEP_STR-MASTERDATACHANGEPROCESSUUID sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSUPDATETOKEN sy-vline 
WA_CMDCHGPROCSTEP_STR-MASTERDATACHANGEPROCESS sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEP sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPTYPE sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPDESCRIPTION sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPSTATUS sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHANGEPROCESSSTEPHASERROR sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCSTEPNUMBEROFWARNINGS sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPNUMBEROFERRORS sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCSTPNUMBEROFEXCEPTIONS sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCMODIFDOBJECTSCOUNT sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCSTPPROGRESSRATIOINPCT sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHANGEPROCSTEPPROGRESSUNIT sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPADAPTER sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPADAPTERCONFIGN sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPCHKPOINTISACTV sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPORIGLNUMBER sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPORIGLSQNCNMBR sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPSTARTISREQD sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSRCEOBJECTTYPECODE sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPFILTERCHAIN sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPSTARTDATETIME sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPFINISHDATETIME sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTEPCONFIGN sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSTPOWNCONFIGNISRQD sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHANGEPROCESSSTEPISTRANSIENT sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCISADHOCSTEP sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCSTEPSCHEDULEISRECMDD sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSRCESYSTEM sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCESSSRCEOBJECT sy-vline 
WA_CMDCHGPROCSTEP_STR-MDCHGPROCSTEPISROLLBACKALLOWED sy-vline      INTO ld_text SEPARATED BY SPACE.

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