ABAP Select data from SAP table CNV_21500_PLL_CONF_ACTIV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CNV_21500_PLL_CONF_ACTIV 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 CNV_21500_PLL_CONF_ACTIV. 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 CNV_21500_PLL_CONF_ACTIV 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_CNV_21500_PLL_CONF_ACTIV TYPE STANDARD TABLE OF CNV_21500_PLL_CONF_ACTIV,
      WA_CNV_21500_PLL_CONF_ACTIV TYPE CNV_21500_PLL_CONF_ACTIV,
      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: <CNV_21500_PLL_CONF_ACTIV> TYPE CNV_21500_PLL_CONF_ACTIV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CNV_21500_PLL_CONF_ACTIV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CNV_21500_PLL_CONF_ACTIV
  INTO TABLE IT_CNV_21500_PLL_CONF_ACTIV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNV_21500_PLL_CONF_ACTIV
*  INTO TABLE @DATA(IT_CNV_21500_PLL_CONF_ACTIV2).
*--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_CNV_21500_PLL_CONF_ACTIV INDEX 1 INTO DATA(WA_CNV_21500_PLL_CONF_ACTIV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CNV_21500_PLL_CONF_ACTIV ASSIGNING <CNV_21500_PLL_CONF_ACTIV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNV_21500_PLL_CONF_ACTIV>-VGW01 = 1.
<CNV_21500_PLL_CONF_ACTIV>-VGE01 = 1.
<CNV_21500_PLL_CONF_ACTIV>-SOW01 = 1.
<CNV_21500_PLL_CONF_ACTIV>-SOE01 = 1.
<CNV_21500_PLL_CONF_ACTIV>-RUW01 = 1.

ENDLOOP.

LOOP AT IT_CNV_21500_PLL_CONF_ACTIV INTO WA_CNV_21500_PLL_CONF_ACTIV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNV_21500_PLL_CONF_ACTIV-RUE01, sy-vline,
  WA_CNV_21500_PLL_CONF_ACTIV-BEG01, sy-vline,
  WA_CNV_21500_PLL_CONF_ACTIV-END01, sy-vline,
  WA_CNV_21500_PLL_CONF_ACTIV-VGW02, sy-vline,
  WA_CNV_21500_PLL_CONF_ACTIV-VGE02, sy-vline,
  WA_CNV_21500_PLL_CONF_ACTIV-SOW02, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNV_21500_PLL_CONF_ACTIV 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_CNV_21500_PLL_CONF_ACTIV 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_CNV_21500_PLL_CONF_ACTIV INTO WA_CNV_21500_PLL_CONF_ACTIV.


*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_CNV_21500_PLL_CONF_ACTIV_STR, 
VGW01 TYPE STRING,
VGE01 TYPE STRING,
SOW01 TYPE STRING,
SOE01 TYPE STRING,
RUW01 TYPE STRING,
RUE01 TYPE STRING,
BEG01 TYPE STRING,
END01 TYPE STRING,
VGW02 TYPE STRING,
VGE02 TYPE STRING,
SOW02 TYPE STRING,
SOE02 TYPE STRING,
RUW02 TYPE STRING,
RUE02 TYPE STRING,
BEG02 TYPE STRING,
END02 TYPE STRING,
VGW03 TYPE STRING,
VGE03 TYPE STRING,
SOW03 TYPE STRING,
SOE03 TYPE STRING,
RUW03 TYPE STRING,
RUE03 TYPE STRING,
BEG03 TYPE STRING,
END03 TYPE STRING,
VGW04 TYPE STRING,
VGE04 TYPE STRING,
SOW04 TYPE STRING,
SOE04 TYPE STRING,
RUW04 TYPE STRING,
RUE04 TYPE STRING,
BEG04 TYPE STRING,
END04 TYPE STRING,
VGW05 TYPE STRING,
VGE05 TYPE STRING,
SOW05 TYPE STRING,
SOE05 TYPE STRING,
RUW05 TYPE STRING,
RUE05 TYPE STRING,
BEG05 TYPE STRING,
END05 TYPE STRING,
VGW06 TYPE STRING,
VGE06 TYPE STRING,
SOW06 TYPE STRING,
SOE06 TYPE STRING,
RUW06 TYPE STRING,
RUE06 TYPE STRING,
BEG06 TYPE STRING,
END06 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNV_21500_PLL_CONF_ACTIV_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_CNV_21500_PLL_CONF_ACTIV_STR-VGW01 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-VGE01 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-SOW01 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-SOE01 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-RUW01 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-RUE01 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-BEG01 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-END01 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-VGW02 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-VGE02 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-SOW02 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-SOE02 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-RUW02 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-RUE02 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-BEG02 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-END02 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-VGW03 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-VGE03 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-SOW03 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-SOE03 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-RUW03 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-RUE03 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-BEG03 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-END03 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-VGW04 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-VGE04 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-SOW04 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-SOE04 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-RUW04 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-RUE04 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-BEG04 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-END04 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-VGW05 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-VGE05 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-SOW05 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-SOE05 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-RUW05 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-RUE05 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-BEG05 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-END05 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-VGW06 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-VGE06 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-SOW06 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-SOE06 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-RUW06 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-RUE06 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-BEG06 sy-vline 
WA_CNV_21500_PLL_CONF_ACTIV_STR-END06 sy-vline      INTO ld_text SEPARATED BY SPACE.

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