ABAP Select data from SAP table CRMT_BSP_CAMPA_TREE_LINE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_BSP_CAMPA_TREE_LINE
*  INTO TABLE @DATA(IT_CRMT_BSP_CAMPA_TREE_LINE2).
*--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_CRMT_BSP_CAMPA_TREE_LINE INDEX 1 INTO DATA(WA_CRMT_BSP_CAMPA_TREE_LINE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_BSP_CAMPA_TREE_LINE>-OBJECT_KEY = 1.
<CRMT_BSP_CAMPA_TREE_LINE>-PARENT_KEY = 1.
<CRMT_BSP_CAMPA_TREE_LINE>-ICON = 1.
<CRMT_BSP_CAMPA_TREE_LINE>-ICON_EXPANDED = 1.
<CRMT_BSP_CAMPA_TREE_LINE>-IS_EXPANDED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_BSP_CAMPA_TREE_LINE-IS_LEAF, sy-vline,
  WA_CRMT_BSP_CAMPA_TREE_LINE-IS_HOTSPOT, sy-vline,
  WA_CRMT_BSP_CAMPA_TREE_LINE-TOOLTIP, sy-vline,
  WA_CRMT_BSP_CAMPA_TREE_LINE-DESCRIPTION, sy-vline,
  WA_CRMT_BSP_CAMPA_TREE_LINE-EXTERNAL_ID, sy-vline,
  WA_CRMT_BSP_CAMPA_TREE_LINE-TEXT1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_BSP_CAMPA_TREE_LINE 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_CRMT_BSP_CAMPA_TREE_LINE 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_CRMT_BSP_CAMPA_TREE_LINE INTO WA_CRMT_BSP_CAMPA_TREE_LINE.


*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 TSTPS, internal->external for field PLANSTART
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_BSP_CAMPA_TREE_LINE-PLANSTART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_BSP_CAMPA_TREE_LINE-PLANSTART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field PLANFINISH
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_BSP_CAMPA_TREE_LINE-PLANFINISH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_BSP_CAMPA_TREE_LINE-PLANFINISH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field ACTUALSTART
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_BSP_CAMPA_TREE_LINE-ACTUALSTART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_BSP_CAMPA_TREE_LINE-ACTUALSTART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field ACTUALFINISH
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_BSP_CAMPA_TREE_LINE-ACTUALFINISH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_BSP_CAMPA_TREE_LINE-ACTUALFINISH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CGPLP, internal->external for field PARENT_GUID
CALL FUNCTION 'CONVERSION_EXIT_CGPLP_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_BSP_CAMPA_TREE_LINE-PARENT_GUID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_BSP_CAMPA_TREE_LINE-PARENT_GUID.
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_CRMT_BSP_CAMPA_TREE_LINE_STR, 
OBJECT_KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ICON TYPE STRING,
ICON_EXPANDED TYPE STRING,
IS_EXPANDED TYPE STRING,
IS_LEAF TYPE STRING,
IS_HOTSPOT TYPE STRING,
TOOLTIP TYPE STRING,
DESCRIPTION TYPE STRING,
EXTERNAL_ID TYPE STRING,
TEXT1 TYPE STRING,
STATUS TYPE STRING,
PLANSTART TYPE STRING,
PLANFINISH TYPE STRING,
ACTUALSTART TYPE STRING,
ACTUALFINISH TYPE STRING,
PLANSTART_DATE TYPE STRING,
PLANFINISH_DATE TYPE STRING,
ACTUALSTART_DATE TYPE STRING,
ACTUALFINISH_DAT TYPE STRING,
OBJECT_TYPE TYPE STRING,
PARENT_GUID TYPE STRING,
COUNTRY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_BSP_CAMPA_TREE_LINE_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_CRMT_BSP_CAMPA_TREE_LINE_STR-OBJECT_KEY sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-PARENT_KEY sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-ICON sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-ICON_EXPANDED sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-IS_EXPANDED sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-IS_LEAF sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-IS_HOTSPOT sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-TOOLTIP sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-DESCRIPTION sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-EXTERNAL_ID sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-TEXT1 sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-STATUS sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-PLANSTART sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-PLANFINISH sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-ACTUALSTART sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-ACTUALFINISH sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-PLANSTART_DATE sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-PLANFINISH_DATE sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-ACTUALSTART_DATE sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-ACTUALFINISH_DAT sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-OBJECT_TYPE sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-PARENT_GUID sy-vline 
WA_CRMT_BSP_CAMPA_TREE_LINE_STR-COUNTRY sy-vline      INTO ld_text SEPARATED BY SPACE.

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