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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/CURTO_IFLO_LXPNODID
*  INTO TABLE @DATA(IT_/SAPAPO/CURTO_IFLO_LXPNODID2).
*--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/CURTO_IFLO_LXPNODID INDEX 1 INTO DATA(WA_/SAPAPO/CURTO_IFLO_LXPNODID2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/CURTO_IFLO_LXPNODID>-PNGUID = 1.
</SAPAPO/CURTO_IFLO_LXPNODID>-PNAME = 1.
</SAPAPO/CURTO_IFLO_LXPNODID>-CLINT = 1.
</SAPAPO/CURTO_IFLO_LXPNODID>-PNTYPE = 1.
</SAPAPO/CURTO_IFLO_LXPNODID>-APPLOBJ_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/CURTO_IFLO_LXPNODID-HISTFLG, sy-vline,
  WA_/SAPAPO/CURTO_IFLO_LXPNODID-FLOTYPE, sy-vline,
  WA_/SAPAPO/CURTO_IFLO_LXPNODID-LINE_NODEID, sy-vline,
  WA_/SAPAPO/CURTO_IFLO_LXPNODID-CORR_PAGUID, sy-vline,
  WA_/SAPAPO/CURTO_IFLO_LXPNODID-CORR_PALTID_EXT, sy-vline,
  WA_/SAPAPO/CURTO_IFLO_LXPNODID-ALTPATH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/CURTO_IFLO_LXPNODID 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/CURTO_IFLO_LXPNODID 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/CURTO_IFLO_LXPNODID INTO WA_/SAPAPO/CURTO_IFLO_LXPNODID.


*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 CUNIT, internal->external for field BUFUNIT_MIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/CURTO_IFLO_LXPNODID-BUFUNIT_MIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/CURTO_IFLO_LXPNODID-BUFUNIT_MIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BUFUNIT_MAX
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/CURTO_IFLO_LXPNODID-BUFUNIT_MAX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/CURTO_IFLO_LXPNODID-BUFUNIT_MAX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BUFUNIT_AVG
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/CURTO_IFLO_LXPNODID-BUFUNIT_AVG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/CURTO_IFLO_LXPNODID-BUFUNIT_AVG.
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/CURTO_IFLO_LXPNODID_STR, 
PNGUID TYPE STRING,
PNAME TYPE STRING,
CLINT TYPE STRING,
PNTYPE TYPE STRING,
APPLOBJ_TYPE TYPE STRING,
HISTFLG TYPE STRING,
FLOTYPE TYPE STRING,
LINE_NODEID TYPE STRING,
CORR_PAGUID TYPE STRING,
CORR_PALTID_EXT TYPE STRING,
ALTPATH TYPE STRING,
LEVEL TYPE STRING,
HAS_ALTS TYPE STRING,
LOCID TYPE STRING,
TAKTS TYPE STRING,
PRVBE TYPE STRING,
BUFTIME_MIN TYPE STRING,
BUFUNIT_MIN TYPE STRING,
BUFTIME_MAX TYPE STRING,
BUFUNIT_MAX TYPE STRING,
BUFTIME_AVG TYPE STRING,
BUFUNIT_AVG TYPE STRING,
PLNG_SGMT TYPE STRING,
NOT_LBXREL TYPE STRING,
MMP_ALLOWED TYPE STRING,
TIMESTAMP TYPE STRING,
ACPOGUID_START TYPE STRING,
ACPONAME_START TYPE STRING,
ACPOGUID_END TYPE STRING,
ACPONAME_END TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/CURTO_IFLO_LXPNODID_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/CURTO_IFLO_LXPNODID_STR-PNGUID sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-PNAME sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-CLINT sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-PNTYPE sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-APPLOBJ_TYPE sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-HISTFLG sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-FLOTYPE sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-LINE_NODEID sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-CORR_PAGUID sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-CORR_PALTID_EXT sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-ALTPATH sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-LEVEL sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-HAS_ALTS sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-LOCID sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-TAKTS sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-PRVBE sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-BUFTIME_MIN sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-BUFUNIT_MIN sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-BUFTIME_MAX sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-BUFUNIT_MAX sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-BUFTIME_AVG sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-BUFUNIT_AVG sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-PLNG_SGMT sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-NOT_LBXREL sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-MMP_ALLOWED sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-TIMESTAMP sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-ACPOGUID_START sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-ACPONAME_START sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-ACPOGUID_END sy-vline 
WA_/SAPAPO/CURTO_IFLO_LXPNODID_STR-ACPONAME_END sy-vline      INTO ld_text SEPARATED BY SPACE.

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