ABAP Select data from SAP table CM61Q into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CM61Q 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 CM61Q. 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 CM61Q 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_CM61Q TYPE STANDARD TABLE OF CM61Q,
      WA_CM61Q TYPE CM61Q,
      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: <CM61Q> TYPE CM61Q.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CM61Q.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CM61Q
  INTO TABLE IT_CM61Q.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CM61Q
*  INTO TABLE @DATA(IT_CM61Q2).
*--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_CM61Q INDEX 1 INTO DATA(WA_CM61Q2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CM61Q ASSIGNING <CM61Q>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CM61Q>-CAMOD = 1.
<CM61Q>-TRTYP = 1.
<CM61Q>-FABKL = 1.
<CM61Q>-AENKZ = 1.
<CM61Q>-KZKWD = 1.

ENDLOOP.

LOOP AT IT_CM61Q INTO WA_CM61Q.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CM61Q-PRREG, sy-vline,
  WA_CM61Q-RCODE, sy-vline,
  WA_CM61Q-HERKT, sy-vline,
  WA_CM61Q-BESKZ, sy-vline,
  WA_CM61Q-XLINE, sy-vline,
  WA_CM61Q-CADYN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CM61Q 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_CM61Q 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_CM61Q INTO WA_CM61Q.


*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_CM61Q_STR, 
CAMOD TYPE STRING,
TRTYP TYPE STRING,
FABKL TYPE STRING,
AENKZ TYPE STRING,
KZKWD TYPE STRING,
PRREG TYPE STRING,
RCODE TYPE STRING,
HERKT TYPE STRING,
BESKZ TYPE STRING,
XLINE TYPE STRING,
CADYN TYPE STRING,
GSBTR TYPE STRING,
BSTMG TYPE STRING,
FKDIF TYPE STRING,
MONTX TYPE STRING,
OSTWG TYPE STRING,
NSAVE TYPE STRING,
BSFAK TYPE STRING,
VFAEN TYPE STRING,
BSDIF TYPE STRING,
AZERG TYPE STRING,
MEIZU TYPE STRING,
TITLE TYPE STRING,
PBKOX TYPE STRING,
LOCOX TYPE STRING,
TBSTR TYPE STRING,
TBSMG TYPE STRING,
KZAKP TYPE STRING,
LFPKZ TYPE STRING,
MULTI TYPE STRING,
AGREQ TYPE STRING,
RESMD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CM61Q_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_CM61Q_STR-CAMOD sy-vline 
WA_CM61Q_STR-TRTYP sy-vline 
WA_CM61Q_STR-FABKL sy-vline 
WA_CM61Q_STR-AENKZ sy-vline 
WA_CM61Q_STR-KZKWD sy-vline 
WA_CM61Q_STR-PRREG sy-vline 
WA_CM61Q_STR-RCODE sy-vline 
WA_CM61Q_STR-HERKT sy-vline 
WA_CM61Q_STR-BESKZ sy-vline 
WA_CM61Q_STR-XLINE sy-vline 
WA_CM61Q_STR-CADYN sy-vline 
WA_CM61Q_STR-GSBTR sy-vline 
WA_CM61Q_STR-BSTMG sy-vline 
WA_CM61Q_STR-FKDIF sy-vline 
WA_CM61Q_STR-MONTX sy-vline 
WA_CM61Q_STR-OSTWG sy-vline 
WA_CM61Q_STR-NSAVE sy-vline 
WA_CM61Q_STR-BSFAK sy-vline 
WA_CM61Q_STR-VFAEN sy-vline 
WA_CM61Q_STR-BSDIF sy-vline 
WA_CM61Q_STR-AZERG sy-vline 
WA_CM61Q_STR-MEIZU sy-vline 
WA_CM61Q_STR-TITLE sy-vline 
WA_CM61Q_STR-PBKOX sy-vline 
WA_CM61Q_STR-LOCOX sy-vline 
WA_CM61Q_STR-TBSTR sy-vline 
WA_CM61Q_STR-TBSMG sy-vline 
WA_CM61Q_STR-KZAKP sy-vline 
WA_CM61Q_STR-LFPKZ sy-vline 
WA_CM61Q_STR-MULTI sy-vline 
WA_CM61Q_STR-AGREQ sy-vline 
WA_CM61Q_STR-RESMD sy-vline      INTO ld_text SEPARATED BY SPACE.

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