ABAP Select data from SAP table CMFGBUYOFFFSTEP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMFGBUYOFFFSTEP
*  INTO TABLE @DATA(IT_CMFGBUYOFFFSTEP2).
*--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_CMFGBUYOFFFSTEP INDEX 1 INTO DATA(WA_CMFGBUYOFFFSTEP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMFGBUYOFFFSTEP>-MANDT = 1.
<CMFGBUYOFFFSTEP>-MFGBUYOFFCYCLE = 1.
<CMFGBUYOFFFSTEP>-MFGBUYOFFINTERNALID = 1.
<CMFGBUYOFFFSTEP>-RESPYMGMTFUNCTION = 1.
<CMFGBUYOFFFSTEP>-PROCESSOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMFGBUYOFFFSTEP-USERDESCRIPTION, sy-vline,
  WA_CMFGBUYOFFFSTEP-SEQUENCE, sy-vline,
  WA_CMFGBUYOFFFSTEP-MFGBUYOFFREFERENCEDSTEP, sy-vline,
  WA_CMFGBUYOFFFSTEP-MFGBUYOFFSTATUS, sy-vline,
  WA_CMFGBUYOFFFSTEP-RESPYMGMTTEAMID, sy-vline,
  WA_CMFGBUYOFFFSTEP-RESPYMGMTTEAMNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMFGBUYOFFFSTEP 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_CMFGBUYOFFFSTEP 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_CMFGBUYOFFFSTEP INTO WA_CMFGBUYOFFFSTEP.


*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_CMFGBUYOFFFSTEP_STR, 
MANDT TYPE STRING,
MFGBUYOFFCYCLE TYPE STRING,
MFGBUYOFFINTERNALID TYPE STRING,
RESPYMGMTFUNCTION TYPE STRING,
PROCESSOR TYPE STRING,
USERDESCRIPTION TYPE STRING,
SEQUENCE TYPE STRING,
MFGBUYOFFREFERENCEDSTEP TYPE STRING,
MFGBUYOFFSTATUS TYPE STRING,
RESPYMGMTTEAMID TYPE STRING,
RESPYMGMTTEAMNAME TYPE STRING,
RESPYMGMTFUNCTIONDESCRIPTION TYPE STRING,
RESPYMGMTTEAMDESCRIPTION TYPE STRING,
OPACTYNTWKELEMENTELEMENT TYPE STRING,
OPACTYNTWKELEMENTELMNTVERSCNTR TYPE STRING,
MFGBUYOFFADHOCSTEPDESCRIPTION TYPE STRING,
MFGBUYOFFSTATUSNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMFGBUYOFFFSTEP_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_CMFGBUYOFFFSTEP_STR-MANDT sy-vline 
WA_CMFGBUYOFFFSTEP_STR-MFGBUYOFFCYCLE sy-vline 
WA_CMFGBUYOFFFSTEP_STR-MFGBUYOFFINTERNALID sy-vline 
WA_CMFGBUYOFFFSTEP_STR-RESPYMGMTFUNCTION sy-vline 
WA_CMFGBUYOFFFSTEP_STR-PROCESSOR sy-vline 
WA_CMFGBUYOFFFSTEP_STR-USERDESCRIPTION sy-vline 
WA_CMFGBUYOFFFSTEP_STR-SEQUENCE sy-vline 
WA_CMFGBUYOFFFSTEP_STR-MFGBUYOFFREFERENCEDSTEP sy-vline 
WA_CMFGBUYOFFFSTEP_STR-MFGBUYOFFSTATUS sy-vline 
WA_CMFGBUYOFFFSTEP_STR-RESPYMGMTTEAMID sy-vline 
WA_CMFGBUYOFFFSTEP_STR-RESPYMGMTTEAMNAME sy-vline 
WA_CMFGBUYOFFFSTEP_STR-RESPYMGMTFUNCTIONDESCRIPTION sy-vline 
WA_CMFGBUYOFFFSTEP_STR-RESPYMGMTTEAMDESCRIPTION sy-vline 
WA_CMFGBUYOFFFSTEP_STR-OPACTYNTWKELEMENTELEMENT sy-vline 
WA_CMFGBUYOFFFSTEP_STR-OPACTYNTWKELEMENTELMNTVERSCNTR sy-vline 
WA_CMFGBUYOFFFSTEP_STR-MFGBUYOFFADHOCSTEPDESCRIPTION sy-vline 
WA_CMFGBUYOFFFSTEP_STR-MFGBUYOFFSTATUSNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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