ABAP Select data from SAP table /SAPAPO/TS_NODE_ADD into internal table

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

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/TS_NODE_ADD
  INTO TABLE IT_/SAPAPO/TS_NODE_ADD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/TS_NODE_ADD
*  INTO TABLE @DATA(IT_/SAPAPO/TS_NODE_ADD2).
*--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_/SAPAPO/TS_NODE_ADD INDEX 1 INTO DATA(WA_/SAPAPO/TS_NODE_ADD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/TS_NODE_ADD>-IV_VERSION = 1.
</SAPAPO/TS_NODE_ADD>-TSTRID_GENER = 1.
</SAPAPO/TS_NODE_ADD>-LT_NODES = 1.
</SAPAPO/TS_NODE_ADD>-LT_KEYF_DESC = 1.
</SAPAPO/TS_NODE_ADD>-LS_GEN_PARAMS = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/TS_NODE_ADD INTO WA_/SAPAPO/TS_NODE_ADD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/TS_NODE_ADD-SIMVERSION, sy-vline,
  WA_/SAPAPO/TS_NODE_ADD-RESERVED1, sy-vline,
  WA_/SAPAPO/TS_NODE_ADD-DISABLE_RPM_DEMANDS, sy-vline,
  WA_/SAPAPO/TS_NODE_ADD-DONT_SET_NETCHG_FLAG, sy-vline,
  WA_/SAPAPO/TS_NODE_ADD-INVISIBILITY, sy-vline,
  WA_/SAPAPO/TS_NODE_ADD-INVIS_FLAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/TS_NODE_ADD 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_/SAPAPO/TS_NODE_ADD 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_/SAPAPO/TS_NODE_ADD INTO WA_/SAPAPO/TS_NODE_ADD.


*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 VRSIO, internal->external for field IV_VERSION
CALL FUNCTION 'CONVERSION_EXIT_VRSIO_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/TS_NODE_ADD-IV_VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/TS_NODE_ADD-IV_VERSION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARE2, internal->external for field IV_PAREAID
CALL FUNCTION 'CONVERSION_EXIT_PARE2_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/TS_NODE_ADD-IV_PAREAID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/TS_NODE_ADD-IV_PAREAID.
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_/SAPAPO/TS_NODE_ADD_STR, 
IV_VERSION TYPE STRING,
TSTRID_GENER TYPE STRING,
LT_NODES TYPE STRING,
LT_KEYF_DESC TYPE STRING,
LS_GEN_PARAMS TYPE STRING,
SIMVERSION TYPE STRING,
RESERVED1 TYPE STRING,
DISABLE_RPM_DEMANDS TYPE STRING,
DONT_SET_NETCHG_FLAG TYPE STRING,
INVISIBILITY TYPE STRING,
INVIS_FLAG TYPE STRING,
INVIS_GROUP_ID TYPE STRING,
LCNAME TYPE STRING,
IV_PAREAID TYPE STRING,
LV_MODEL TYPE STRING,
LT_PLOBJ TYPE STRING,
LT_TS_CH_ASSOC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/TS_NODE_ADD_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_/SAPAPO/TS_NODE_ADD_STR-IV_VERSION sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-TSTRID_GENER sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-LT_NODES sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-LT_KEYF_DESC sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-LS_GEN_PARAMS sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-SIMVERSION sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-RESERVED1 sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-DISABLE_RPM_DEMANDS sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-DONT_SET_NETCHG_FLAG sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-INVISIBILITY sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-INVIS_FLAG sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-INVIS_GROUP_ID sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-LCNAME sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-IV_PAREAID sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-LV_MODEL sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-LT_PLOBJ sy-vline 
WA_/SAPAPO/TS_NODE_ADD_STR-LT_TS_CH_ASSOC sy-vline      INTO ld_text SEPARATED BY SPACE.

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