ABAP Select data from SAP table CMNGCCTLGCLFTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMNGCCTLGCLFTP
*  INTO TABLE @DATA(IT_CMNGCCTLGCLFTP2).
*--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_CMNGCCTLGCLFTP INDEX 1 INTO DATA(WA_CMNGCCTLGCLFTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMNGCCTLGCLFTP>-MANDT = 1.
<CMNGCCTLGCLFTP>-PRODALLOCCHARCCTLGPATHUUID = 1.
<CMNGCCTLGCLFTP>-PRODALLOCCHARCCTLGPATHDESC = 1.
<CMNGCCTLGCLFTP>-CHARCCTLGPARENTPATHDESCRIPTION = 1.
<CMNGCCTLGCLFTP>-CHARCVALEXISTENCECHECKTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMNGCCTLGCLFTP-PRODALLOCCHARCCTLGPATHINTID, sy-vline,
  WA_CMNGCCTLGCLFTP-PRODALLOCCHARCCATALOGTYPE, sy-vline,
  WA_CMNGCCTLGCLFTP-PRODALLOCCHARCCATALOGUSETYPE, sy-vline,
  WA_CMNGCCTLGCLFTP-PRODALLOCCHARCCATALOGUUID, sy-vline,
  WA_CMNGCCTLGCLFTP-PRODALLOCCHARCCTLGPARPATHINTID, sy-vline,
  WA_CMNGCCTLGCLFTP-PRODALLOCCHARCCATALOGCHARCTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMNGCCTLGCLFTP 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_CMNGCCTLGCLFTP 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_CMNGCCTLGCLFTP INTO WA_CMNGCCTLGCLFTP.


*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 ALPHA, internal->external for field CHARCCATALOGCHARACTERISTICNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMNGCCTLGCLFTP-CHARCCATALOGCHARACTERISTICNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMNGCCTLGCLFTP-CHARCCATALOGCHARACTERISTICNAME.
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_CMNGCCTLGCLFTP_STR, 
MANDT TYPE STRING,
PRODALLOCCHARCCTLGPATHUUID TYPE STRING,
PRODALLOCCHARCCTLGPATHDESC TYPE STRING,
CHARCCTLGPARENTPATHDESCRIPTION TYPE STRING,
CHARCVALEXISTENCECHECKTYPE TYPE STRING,
PRODALLOCCHARCCTLGPATHINTID TYPE STRING,
PRODALLOCCHARCCATALOGTYPE TYPE STRING,
PRODALLOCCHARCCATALOGUSETYPE TYPE STRING,
PRODALLOCCHARCCATALOGUUID TYPE STRING,
PRODALLOCCHARCCTLGPARPATHINTID TYPE STRING,
PRODALLOCCHARCCATALOGCHARCTYPE TYPE STRING,
PRODALLOCCHARCCATALOGPATHTYPE TYPE STRING,
PRODALLOCCHARCCTLGPATHSELNAME TYPE STRING,
PRODALLOCCHARCCTLGPATHSEL TYPE STRING,
PRODALLOCCHARCCATALOGPATH TYPE STRING,
PRODALLOCCHARCCTLGPATHISHIDDEN TYPE STRING,
CHARCISONLYUSABLEINVALUEGROUPS TYPE STRING,
CHARACTERISTIC TYPE STRING,
CHARCCATALOGCHARACTERISTICNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMNGCCTLGCLFTP_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_CMNGCCTLGCLFTP_STR-MANDT sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCTLGPATHUUID sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCTLGPATHDESC sy-vline 
WA_CMNGCCTLGCLFTP_STR-CHARCCTLGPARENTPATHDESCRIPTION sy-vline 
WA_CMNGCCTLGCLFTP_STR-CHARCVALEXISTENCECHECKTYPE sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCTLGPATHINTID sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCATALOGTYPE sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCATALOGUSETYPE sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCATALOGUUID sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCTLGPARPATHINTID sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCATALOGCHARCTYPE sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCATALOGPATHTYPE sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCTLGPATHSELNAME sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCTLGPATHSEL sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCATALOGPATH sy-vline 
WA_CMNGCCTLGCLFTP_STR-PRODALLOCCHARCCTLGPATHISHIDDEN sy-vline 
WA_CMNGCCTLGCLFTP_STR-CHARCISONLYUSABLEINVALUEGROUPS sy-vline 
WA_CMNGCCTLGCLFTP_STR-CHARACTERISTIC sy-vline 
WA_CMNGCCTLGCLFTP_STR-CHARCCATALOGCHARACTERISTICNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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