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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/CURTOPUL
*  INTO TABLE @DATA(IT_/SAPAPO/CURTOPUL2).
*--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/CURTOPUL INDEX 1 INTO DATA(WA_/SAPAPO/CURTOPUL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/CURTOPUL>-MANDT = 1.
</SAPAPO/CURTOPUL>-KEYGUID = 1.
</SAPAPO/CURTOPUL>-SIMVERSION = 1.
</SAPAPO/CURTOPUL>-TRPID = 1.
</SAPAPO/CURTOPUL>-TR_TIMESTAMP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/CURTOPUL-PH_PGUID, sy-vline,
  WA_/SAPAPO/CURTOPUL-PH_OTYPE, sy-vline,
  WA_/SAPAPO/CURTOPUL-PH_PGUID_REF, sy-vline,
  WA_/SAPAPO/CURTOPUL-PH_OTYPE_REF, sy-vline,
  WA_/SAPAPO/CURTOPUL-PH_TIMESTAMP, sy-vline,
  WA_/SAPAPO/CURTOPUL-CR_USER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/CURTOPUL 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/CURTOPUL 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/CURTOPUL INTO WA_/SAPAPO/CURTOPUL.


*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 SIMVERSION
CALL FUNCTION 'CONVERSION_EXIT_VRSIO_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/CURTOPUL-SIMVERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/CURTOPUL-SIMVERSION.
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/CURTOPUL_STR, 
MANDT TYPE STRING,
KEYGUID TYPE STRING,
SIMVERSION TYPE STRING,
TRPID TYPE STRING,
TR_TIMESTAMP TYPE STRING,
PH_PGUID TYPE STRING,
PH_OTYPE TYPE STRING,
PH_PGUID_REF TYPE STRING,
PH_OTYPE_REF TYPE STRING,
PH_TIMESTAMP TYPE STRING,
CR_USER TYPE STRING,
CR_TIME TYPE STRING,
TR_PDS_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/CURTOPUL_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/CURTOPUL_STR-MANDT sy-vline 
WA_/SAPAPO/CURTOPUL_STR-KEYGUID sy-vline 
WA_/SAPAPO/CURTOPUL_STR-SIMVERSION sy-vline 
WA_/SAPAPO/CURTOPUL_STR-TRPID sy-vline 
WA_/SAPAPO/CURTOPUL_STR-TR_TIMESTAMP sy-vline 
WA_/SAPAPO/CURTOPUL_STR-PH_PGUID sy-vline 
WA_/SAPAPO/CURTOPUL_STR-PH_OTYPE sy-vline 
WA_/SAPAPO/CURTOPUL_STR-PH_PGUID_REF sy-vline 
WA_/SAPAPO/CURTOPUL_STR-PH_OTYPE_REF sy-vline 
WA_/SAPAPO/CURTOPUL_STR-PH_TIMESTAMP sy-vline 
WA_/SAPAPO/CURTOPUL_STR-CR_USER sy-vline 
WA_/SAPAPO/CURTOPUL_STR-CR_TIME sy-vline 
WA_/SAPAPO/CURTOPUL_STR-TR_PDS_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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