ABAP Select data from SAP table CSUPLRPURORDER into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSUPLRPURORDER
*  INTO TABLE @DATA(IT_CSUPLRPURORDER2).
*--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_CSUPLRPURORDER INDEX 1 INTO DATA(WA_CSUPLRPURORDER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSUPLRPURORDER>-MANDT = 1.
<CSUPLRPURORDER>-PURCHASEORDER = 1.
<CSUPLRPURORDER>-PURCHASEORDERTYPE = 1.
<CSUPLRPURORDER>-PURCHASINGGROUP = 1.
<CSUPLRPURORDER>-SUPPLIER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSUPLRPURORDER-PURCHASEORDERDATE, sy-vline,
  WA_CSUPLRPURORDER-PURCHASEORDERNETAMOUNT, sy-vline,
  WA_CSUPLRPURORDER-DOCUMENTCURRENCY, sy-vline,
  WA_CSUPLRPURORDER-PURCHASINGDOCUMENTSTATUS, sy-vline,
  WA_CSUPLRPURORDER-PURCHASINGORGANIZATION, sy-vline,
  WA_CSUPLRPURORDER-PURCHASINGORGANIZATIONNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSUPLRPURORDER 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_CSUPLRPURORDER 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_CSUPLRPURORDER INTO WA_CSUPLRPURORDER.


*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 ALPHA, internal->external for field PURCHASEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSUPLRPURORDER-PURCHASEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSUPLRPURORDER-PURCHASEORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSUPLRPURORDER-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSUPLRPURORDER-SUPPLIER.
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_CSUPLRPURORDER_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERTYPE TYPE STRING,
PURCHASINGGROUP TYPE STRING,
SUPPLIER TYPE STRING,
PURCHASEORDERDATE TYPE STRING,
PURCHASEORDERNETAMOUNT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
PURCHASINGDOCUMENTSTATUS TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGORGANIZATIONNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSUPLRPURORDER_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_CSUPLRPURORDER_STR-MANDT sy-vline 
WA_CSUPLRPURORDER_STR-PURCHASEORDER sy-vline 
WA_CSUPLRPURORDER_STR-PURCHASEORDERTYPE sy-vline 
WA_CSUPLRPURORDER_STR-PURCHASINGGROUP sy-vline 
WA_CSUPLRPURORDER_STR-SUPPLIER sy-vline 
WA_CSUPLRPURORDER_STR-PURCHASEORDERDATE sy-vline 
WA_CSUPLRPURORDER_STR-PURCHASEORDERNETAMOUNT sy-vline 
WA_CSUPLRPURORDER_STR-DOCUMENTCURRENCY sy-vline 
WA_CSUPLRPURORDER_STR-PURCHASINGDOCUMENTSTATUS sy-vline 
WA_CSUPLRPURORDER_STR-PURCHASINGORGANIZATION sy-vline 
WA_CSUPLRPURORDER_STR-PURCHASINGORGANIZATIONNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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