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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/SPP_S_PROCURE_APPR_RFC
*  INTO TABLE @DATA(IT_/SAPAPO/SPP_S_PROCURE_APPR_RFC2).
*--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/SPP_S_PROCURE_APPR_RFC INDEX 1 INTO DATA(WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/SPP_S_PROCURE_APPR_RFC>-PERIOD = 1.
</SAPAPO/SPP_S_PROCURE_APPR_RFC>-ATPCATEGORY = 1.
</SAPAPO/SPP_S_PROCURE_APPR_RFC>-ALERTS = 1.
</SAPAPO/SPP_S_PROCURE_APPR_RFC>-MATNR = 1.
</SAPAPO/SPP_S_PROCURE_APPR_RFC>-MAKTX = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC-ENTRYPOINT, sy-vline,
  WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC-ENTRYPOINTDESCR, sy-vline,
  WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC-SUPPLIER, sy-vline,
  WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC-BUYTYPEINFO, sy-vline,
  WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC-ROPMODEICON, sy-vline,
  WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC-DUEDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC 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/SPP_S_PROCURE_APPR_RFC 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/SPP_S_PROCURE_APPR_RFC INTO WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC-UNIT.
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/SPP_S_PROCURE_APPR_RFC_STR, 
PERIOD TYPE STRING,
ATPCATEGORY TYPE STRING,
ALERTS TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
ENTRYPOINT TYPE STRING,
ENTRYPOINTDESCR TYPE STRING,
SUPPLIER TYPE STRING,
BUYTYPEINFO TYPE STRING,
ROPMODEICON TYPE STRING,
DUEDATE TYPE STRING,
DUETIME TYPE STRING,
DUEDATE_TIMEZONE TYPE STRING,
SHIPDATE TYPE STRING,
SHIPTIME TYPE STRING,
SHIPDATE_TIMEZONE TYPE STRING,
UNIT TYPE STRING,
QUANTITY_ORIGINAL TYPE STRING,
OPENQTY TYPE STRING,
GR_QTY TYPE STRING,
PROCCOST TYPE STRING,
LINEVALUE TYPE STRING,
SUBLFR TYPE STRING,
SUBLTO TYPE STRING,
VERSIONFR TYPE STRING,
VERSIONTO TYPE STRING,
EKORG TYPE STRING,
SUBCO TYPE STRING,
REF_EBELN TYPE STRING,
REF_EBELP TYPE STRING,
SOSEXTNO TYPE STRING,
PURCHINFO TYPE STRING,
FIXED TYPE STRING,
READYTOSHIPDEPLOYMENT TYPE STRING,
FAMILYBUYGROUP TYPE STRING,
PLANNER TYPE STRING,
BUYER TYPE STRING,
BOD TYPE STRING,
TRATY TYPE STRING,
TRATYDESCR TYPE STRING,
ORDERTYPE TYPE STRING,
ORDERTYPE_EXT TYPE STRING,
BUYTYPECODE TYPE STRING,
MATID TYPE STRING,
LOCIDTO TYPE STRING,
ORDID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_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/SPP_S_PROCURE_APPR_RFC_STR-PERIOD sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-ATPCATEGORY sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-ALERTS sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-MATNR sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-MAKTX sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-ENTRYPOINT sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-ENTRYPOINTDESCR sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-SUPPLIER sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-BUYTYPEINFO sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-ROPMODEICON sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-DUEDATE sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-DUETIME sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-DUEDATE_TIMEZONE sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-SHIPDATE sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-SHIPTIME sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-SHIPDATE_TIMEZONE sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-UNIT sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-QUANTITY_ORIGINAL sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-OPENQTY sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-GR_QTY sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-PROCCOST sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-LINEVALUE sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-SUBLFR sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-SUBLTO sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-VERSIONFR sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-VERSIONTO sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-EKORG sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-SUBCO sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-REF_EBELN sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-REF_EBELP sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-SOSEXTNO sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-PURCHINFO sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-FIXED sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-READYTOSHIPDEPLOYMENT sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-FAMILYBUYGROUP sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-PLANNER sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-BUYER sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-BOD sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-TRATY sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-TRATYDESCR sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-ORDERTYPE sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-ORDERTYPE_EXT sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-BUYTYPECODE sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-MATID sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-LOCIDTO sy-vline 
WA_/SAPAPO/SPP_S_PROCURE_APPR_RFC_STR-ORDID sy-vline      INTO ld_text SEPARATED BY SPACE.

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