ABAP Select data from SAP table CPD_AVR_S_MP_STR_HIER_LINK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPD_AVR_S_MP_STR_HIER_LINK
*  INTO TABLE @DATA(IT_CPD_AVR_S_MP_STR_HIER_LINK2).
*--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_CPD_AVR_S_MP_STR_HIER_LINK INDEX 1 INTO DATA(WA_CPD_AVR_S_MP_STR_HIER_LINK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPD_AVR_S_MP_STR_HIER_LINK>-MANDT = 1.
<CPD_AVR_S_MP_STR_HIER_LINK>-DB_KEY = 1.
<CPD_AVR_S_MP_STR_HIER_LINK>-PARENT_KEY = 1.
<CPD_AVR_S_MP_STR_HIER_LINK>-MP_ITM_OTYP = 1.
<CPD_AVR_S_MP_STR_HIER_LINK>-MP_ITEM_OKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPD_AVR_S_MP_STR_HIER_LINK-OBJECT_DISP_ID, sy-vline,
  WA_CPD_AVR_S_MP_STR_HIER_LINK-CREATED_BY, sy-vline,
  WA_CPD_AVR_S_MP_STR_HIER_LINK-CREATED_ON, sy-vline,
  WA_CPD_AVR_S_MP_STR_HIER_LINK-CHANGED_BY, sy-vline,
  WA_CPD_AVR_S_MP_STR_HIER_LINK-CHANGED_ON, sy-vline,
  WA_CPD_AVR_S_MP_STR_HIER_LINK-LEFT_KEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPD_AVR_S_MP_STR_HIER_LINK 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_CPD_AVR_S_MP_STR_HIER_LINK 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_CPD_AVR_S_MP_STR_HIER_LINK INTO WA_CPD_AVR_S_MP_STR_HIER_LINK.


*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 TSTLC, internal->external for field CREATED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CPD_AVR_S_MP_STR_HIER_LINK-CREATED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPD_AVR_S_MP_STR_HIER_LINK-CREATED_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHANGED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CPD_AVR_S_MP_STR_HIER_LINK-CHANGED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPD_AVR_S_MP_STR_HIER_LINK-CHANGED_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROFIT_CENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPD_AVR_S_MP_STR_HIER_LINK-PROFIT_CENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPD_AVR_S_MP_STR_HIER_LINK-PROFIT_CENTER.
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_CPD_AVR_S_MP_STR_HIER_LINK_STR, 
MANDT TYPE STRING,
DB_KEY TYPE STRING,
PARENT_KEY TYPE STRING,
MP_ITM_OTYP TYPE STRING,
MP_ITEM_OKEY TYPE STRING,
OBJECT_DISP_ID TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_ON TYPE STRING,
LEFT_KEY TYPE STRING,
RIGHT_KEY TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
ACTIVE TYPE STRING,
INT_INSPECT_DATE TYPE STRING,
EXT_INSPECT_DATE TYPE STRING,
WORK_TYPE TYPE STRING,
INDUSTRY TYPE STRING,
PROJ_RISK TYPE STRING,
FIN_RISK TYPE STRING,
TECH_RISK TYPE STRING,
INDIC TYPE STRING,
CR_RELEVANT TYPE STRING,
OVERALL_RISK TYPE STRING,
EY TYPE STRING,
COST_CENTER TYPE STRING,
PROFIT_CENTER TYPE STRING,
/CPD/MP_DUMMY_INCL_EEW_PS TYPE STRING,
PLAN_HD_ID TYPE STRING,
PLAN_SCEN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPD_AVR_S_MP_STR_HIER_LINK_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_CPD_AVR_S_MP_STR_HIER_LINK_STR-MANDT sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-DB_KEY sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-PARENT_KEY sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-MP_ITM_OTYP sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-MP_ITEM_OKEY sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-OBJECT_DISP_ID sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-CREATED_BY sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-CREATED_ON sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-CHANGED_BY sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-CHANGED_ON sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-LEFT_KEY sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-RIGHT_KEY sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-COUNTRY sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-REGION sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-ACTIVE sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-INT_INSPECT_DATE sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-EXT_INSPECT_DATE sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-WORK_TYPE sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-INDUSTRY sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-PROJ_RISK sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-FIN_RISK sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-TECH_RISK sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-INDIC sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-CR_RELEVANT sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-OVERALL_RISK sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-EY sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-COST_CENTER sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-PROFIT_CENTER sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-/CPD/MP_DUMMY_INCL_EEW_PS sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-PLAN_HD_ID sy-vline 
WA_CPD_AVR_S_MP_STR_HIER_LINK_STR-PLAN_SCEN sy-vline      INTO ld_text SEPARATED BY SPACE.

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