ABAP Select data from SAP table /PM0/3FJ_CXTAB_COLUMN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PM0/3FJ_CXTAB_COLUMN 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 /PM0/3FJ_CXTAB_COLUMN. 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 /PM0/3FJ_CXTAB_COLUMN 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_/PM0/3FJ_CXTAB_COLUMN TYPE STANDARD TABLE OF /PM0/3FJ_CXTAB_COLUMN,
      WA_/PM0/3FJ_CXTAB_COLUMN TYPE /PM0/3FJ_CXTAB_COLUMN,
      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: </PM0/3FJ_CXTAB_COLUMN> TYPE /PM0/3FJ_CXTAB_COLUMN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PM0/3FJ_CXTAB_COLUMN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PM0/3FJ_CXTAB_COLUMN
  INTO TABLE IT_/PM0/3FJ_CXTAB_COLUMN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PM0/3FJ_CXTAB_COLUMN
*  INTO TABLE @DATA(IT_/PM0/3FJ_CXTAB_COLUMN2).
*--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_/PM0/3FJ_CXTAB_COLUMN INDEX 1 INTO DATA(WA_/PM0/3FJ_CXTAB_COLUMN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PM0/3FJ_CXTAB_COLUMN ASSIGNING </PM0/3FJ_CXTAB_COLUMN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PM0/3FJ_CXTAB_COLUMN>-SCREEN = 1.
</PM0/3FJ_CXTAB_COLUMN>-NAME = 1.
</PM0/3FJ_CXTAB_COLUMN>-GROUP1 = 1.
</PM0/3FJ_CXTAB_COLUMN>-GROUP2 = 1.
</PM0/3FJ_CXTAB_COLUMN>-GROUP3 = 1.

ENDLOOP.

LOOP AT IT_/PM0/3FJ_CXTAB_COLUMN INTO WA_/PM0/3FJ_CXTAB_COLUMN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PM0/3FJ_CXTAB_COLUMN-GROUP4, sy-vline,
  WA_/PM0/3FJ_CXTAB_COLUMN-REQUIRED, sy-vline,
  WA_/PM0/3FJ_CXTAB_COLUMN-INPUT, sy-vline,
  WA_/PM0/3FJ_CXTAB_COLUMN-OUTPUT, sy-vline,
  WA_/PM0/3FJ_CXTAB_COLUMN-INTENSIFIED, sy-vline,
  WA_/PM0/3FJ_CXTAB_COLUMN-INVISIBLE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PM0/3FJ_CXTAB_COLUMN 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_/PM0/3FJ_CXTAB_COLUMN 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_/PM0/3FJ_CXTAB_COLUMN INTO WA_/PM0/3FJ_CXTAB_COLUMN.


*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_/PM0/3FJ_CXTAB_COLUMN_STR, 
SCREEN TYPE STRING,
NAME TYPE STRING,
GROUP1 TYPE STRING,
GROUP2 TYPE STRING,
GROUP3 TYPE STRING,
GROUP4 TYPE STRING,
REQUIRED TYPE STRING,
INPUT TYPE STRING,
OUTPUT TYPE STRING,
INTENSIFIED TYPE STRING,
INVISIBLE TYPE STRING,
LENGTH TYPE STRING,
ACTIVE TYPE STRING,
DISPLAY_3D TYPE STRING,
VALUE_HELP TYPE STRING,
REQUEST TYPE STRING,
VALUES_IN_COMBO TYPE STRING,
COLOR TYPE STRING,
INDEX TYPE STRING,
SELECTED TYPE STRING,
VISLENGTH TYPE STRING,
INVISIBLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PM0/3FJ_CXTAB_COLUMN_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_/PM0/3FJ_CXTAB_COLUMN_STR-SCREEN sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-NAME sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-GROUP1 sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-GROUP2 sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-GROUP3 sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-GROUP4 sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-REQUIRED sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-INPUT sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-OUTPUT sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-INTENSIFIED sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-INVISIBLE sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-LENGTH sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-ACTIVE sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-DISPLAY_3D sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-VALUE_HELP sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-REQUEST sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-VALUES_IN_COMBO sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-COLOR sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-INDEX sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-SELECTED sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-VISLENGTH sy-vline 
WA_/PM0/3FJ_CXTAB_COLUMN_STR-INVISIBLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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