ABAP Select data from SAP table /SAPAPO/SPP_S_CRITICAL_PROD 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_CRITICAL_PROD 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_CRITICAL_PROD. 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_CRITICAL_PROD 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_CRITICAL_PROD TYPE STANDARD TABLE OF /SAPAPO/SPP_S_CRITICAL_PROD,
      WA_/SAPAPO/SPP_S_CRITICAL_PROD TYPE /SAPAPO/SPP_S_CRITICAL_PROD,
      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_CRITICAL_PROD> TYPE /SAPAPO/SPP_S_CRITICAL_PROD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/SPP_S_CRITICAL_PROD
*  INTO TABLE @DATA(IT_/SAPAPO/SPP_S_CRITICAL_PROD2).
*--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_CRITICAL_PROD INDEX 1 INTO DATA(WA_/SAPAPO/SPP_S_CRITICAL_PROD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/SPP_S_CRITICAL_PROD>-VIEWED = 1.
</SAPAPO/SPP_S_CRITICAL_PROD>-ONHOLDUNTIL = 1.
</SAPAPO/SPP_S_CRITICAL_PROD>-LOCNOFR = 1.
</SAPAPO/SPP_S_CRITICAL_PROD>-LOCFRTXT = 1.
</SAPAPO/SPP_S_CRITICAL_PROD>-LOCNOTO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/SPP_S_CRITICAL_PROD-LOCTOTXT, sy-vline,
  WA_/SAPAPO/SPP_S_CRITICAL_PROD-MATNR, sy-vline,
  WA_/SAPAPO/SPP_S_CRITICAL_PROD-MAKTX, sy-vline,
  WA_/SAPAPO/SPP_S_CRITICAL_PROD-BO_MAX_PRIO_TXT, sy-vline,
  WA_/SAPAPO/SPP_S_CRITICAL_PROD-PLANNER, sy-vline,
  WA_/SAPAPO/SPP_S_CRITICAL_PROD-PLANNERTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/SPP_S_CRITICAL_PROD 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_CRITICAL_PROD 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_CRITICAL_PROD INTO WA_/SAPAPO/SPP_S_CRITICAL_PROD.


*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_CRITICAL_PROD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/SPP_S_CRITICAL_PROD-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_CRITICAL_PROD-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/SPP_S_CRITICAL_PROD-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_CRITICAL_PROD_STR, 
VIEWED TYPE STRING,
ONHOLDUNTIL TYPE STRING,
LOCNOFR TYPE STRING,
LOCFRTXT TYPE STRING,
LOCNOTO TYPE STRING,
LOCTOTXT TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
BO_MAX_PRIO_TXT TYPE STRING,
PLANNER TYPE STRING,
PLANNERTXT TYPE STRING,
OLDEST_PDDATE TYPE STRING,
SHORTAGESTATTXT TYPE STRING,
REQUESTSTATTXT TYPE STRING,
UNIT TYPE STRING,
ON_HAND_QTY TYPE STRING,
OPEN_QUANTITY TYPE STRING,
DOH TYPE STRING,
SHORTAGE_STAT TYPE STRING,
REQUEST_STAT TYPE STRING,
DEMAND_FREQ TYPE STRING,
SO_LINES TYPE STRING,
SO_QUANTITY TYPE STRING,
EO_LINES TYPE STRING,
EO_QUANTITY TYPE STRING,
BO_LINES TYPE STRING,
BO_QUANTITY TYPE STRING,
LOCIDTO TYPE STRING,
LOCIDFR TYPE STRING,
MATID TYPE STRING,
ASN_QUANTITY TYPE STRING,
SCON_QUANTITY TYPE STRING,
MULTISUPPLIERS TYPE STRING,
NOTECODE TYPE STRING,
SUFF_PROMISES TYPE STRING,
ROW_EDITABLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/SPP_S_CRITICAL_PROD_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_CRITICAL_PROD_STR-VIEWED sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-ONHOLDUNTIL sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-LOCNOFR sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-LOCFRTXT sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-LOCNOTO sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-LOCTOTXT sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-MATNR sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-MAKTX sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-BO_MAX_PRIO_TXT sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-PLANNER sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-PLANNERTXT sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-OLDEST_PDDATE sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-SHORTAGESTATTXT sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-REQUESTSTATTXT sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-UNIT sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-ON_HAND_QTY sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-OPEN_QUANTITY sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-DOH sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-SHORTAGE_STAT sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-REQUEST_STAT sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-DEMAND_FREQ sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-SO_LINES sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-SO_QUANTITY sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-EO_LINES sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-EO_QUANTITY sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-BO_LINES sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-BO_QUANTITY sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-LOCIDTO sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-LOCIDFR sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-MATID sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-ASN_QUANTITY sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-SCON_QUANTITY sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-MULTISUPPLIERS sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-NOTECODE sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-SUFF_PROMISES sy-vline 
WA_/SAPAPO/SPP_S_CRITICAL_PROD_STR-ROW_EDITABLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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