ABAP Select data from SAP table CMM_VLOGP_TPL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMM_VLOGP_TPL
*  INTO TABLE @DATA(IT_CMM_VLOGP_TPL2).
*--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_CMM_VLOGP_TPL INDEX 1 INTO DATA(WA_CMM_VLOGP_TPL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMM_VLOGP_TPL>-EVENT = 1.
<CMM_VLOGP_TPL>-PREVIOUS_VERSION = 1.
<CMM_VLOGP_TPL>-PREVIOUS_SUBKEY = 1.
<CMM_VLOGP_TPL>-PREVIOUS_FIXED = 1.
<CMM_VLOGP_TPL>-PREVIOUS_IMPLC_FIXED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMM_VLOGP_TPL-PREVIOUS_FIXED_FX, sy-vline,
  WA_CMM_VLOGP_TPL-PREVIOUS_COMMODITY_ADJ, sy-vline,
  WA_CMM_VLOGP_TPL-PREVIOUS_COMM_ADJ_IN_TERMUOM, sy-vline,
  WA_CMM_VLOGP_TPL-PREVIOUS_SIGNAGE_QTY, sy-vline,
  WA_CMM_VLOGP_TPL-PREVIOUS_TERMRATE, sy-vline,
  WA_CMM_VLOGP_TPL-PREVIOUS_TERMCURR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMM_VLOGP_TPL 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_CMM_VLOGP_TPL 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_CMM_VLOGP_TPL INTO WA_CMM_VLOGP_TPL.


*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 PREVIOUS_CONTRACT_CODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMM_VLOGP_TPL-PREVIOUS_CONTRACT_CODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMM_VLOGP_TPL-PREVIOUS_CONTRACT_CODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PREVIOUS_ROOT_DOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMM_VLOGP_TPL-PREVIOUS_ROOT_DOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMM_VLOGP_TPL-PREVIOUS_ROOT_DOC.
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_CMM_VLOGP_TPL_STR, 
EVENT TYPE STRING,
PREVIOUS_VERSION TYPE STRING,
PREVIOUS_SUBKEY TYPE STRING,
PREVIOUS_FIXED TYPE STRING,
PREVIOUS_IMPLC_FIXED TYPE STRING,
PREVIOUS_FIXED_FX TYPE STRING,
PREVIOUS_COMMODITY_ADJ TYPE STRING,
PREVIOUS_COMM_ADJ_IN_TERMUOM TYPE STRING,
PREVIOUS_SIGNAGE_QTY TYPE STRING,
PREVIOUS_TERMRATE TYPE STRING,
PREVIOUS_TERMCURR TYPE STRING,
PREVIOUS_WAERK TYPE STRING,
PREVIOUS_MD_FACTOR_FROM TYPE STRING,
PREVIOUS_MD_FACTOR_TO TYPE STRING,
PREVIOUS_DS_FACTOR_FROM TYPE STRING,
PREVIOUS_DS_FACTOR_TO TYPE STRING,
PREVIOUS_TERMVAL TYPE STRING,
PREVIOUS_KBETR TYPE STRING,
PREVIOUS_DCSID TYPE STRING,
PREVIOUS_MIC TYPE STRING,
PREVIOUS_CONTRACT_CODE TYPE STRING,
PREVIOUS_KEYDATE TYPE STRING,
PREVIOUS_FIXGROUP_STATUS TYPE STRING,
PREVIOUS_TERMFACT_COMB_NUM TYPE STRING,
PREVIOUS_TERMFACT_COMB_DENO TYPE STRING,
PREVIOUS_CALCMIN TYPE STRING,
PREVIOUS_CALCMAX TYPE STRING,
PREVIOUS_PRICETYPE TYPE STRING,
PREVIOUS_CURVE TYPE STRING,
PREVIOUS_QUOTGROUP TYPE STRING,
PREVIOUS_DCS_PERIOD TYPE STRING,
PREVIOUS_DCS_SEL TYPE STRING,
PREVIOUS_KEYDT_SEL_ROUT TYPE STRING,
PREVIOUS_QUOT_TIMESERIES TYPE STRING,
PREVIOUS_QUOT_PER_BEG TYPE STRING,
PREVIOUS_QUOT_PER_END TYPE STRING,
PREVIOUS_ROOT_DOC TYPE STRING,
PREVIOUS_ROOT_DOC_ITM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMM_VLOGP_TPL_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_CMM_VLOGP_TPL_STR-EVENT sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_VERSION sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_SUBKEY sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_FIXED sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_IMPLC_FIXED sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_FIXED_FX sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_COMMODITY_ADJ sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_COMM_ADJ_IN_TERMUOM sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_SIGNAGE_QTY sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_TERMRATE sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_TERMCURR sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_WAERK sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_MD_FACTOR_FROM sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_MD_FACTOR_TO sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_DS_FACTOR_FROM sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_DS_FACTOR_TO sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_TERMVAL sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_KBETR sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_DCSID sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_MIC sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_CONTRACT_CODE sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_KEYDATE sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_FIXGROUP_STATUS sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_TERMFACT_COMB_NUM sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_TERMFACT_COMB_DENO sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_CALCMIN sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_CALCMAX sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_PRICETYPE sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_CURVE sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_QUOTGROUP sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_DCS_PERIOD sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_DCS_SEL sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_KEYDT_SEL_ROUT sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_QUOT_TIMESERIES sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_QUOT_PER_BEG sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_QUOT_PER_END sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_ROOT_DOC sy-vline 
WA_CMM_VLOGP_TPL_STR-PREVIOUS_ROOT_DOC_ITM sy-vline      INTO ld_text SEPARATED BY SPACE.

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