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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/APO_ACTIVITY_DATA_STR
*  INTO TABLE @DATA(IT_/SAPAPO/APO_ACTIVITY_DATA_STR2).
*--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/APO_ACTIVITY_DATA_STR INDEX 1 INTO DATA(WA_/SAPAPO/APO_ACTIVITY_DATA_STR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/APO_ACTIVITY_DATA_STR>-OPRCOUNTER = 1.
</SAPAPO/APO_ACTIVITY_DATA_STR>-GROUP_OPRCOUNTER = 1.
</SAPAPO/APO_ACTIVITY_DATA_STR>-ACTID = 1.
</SAPAPO/APO_ACTIVITY_DATA_STR>-ATEXT = 1.
</SAPAPO/APO_ACTIVITY_DATA_STR>-ACTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/APO_ACTIVITY_DATA_STR-QUANT, sy-vline,
  WA_/SAPAPO/APO_ACTIVITY_DATA_STR-MEOUT, sy-vline,
  WA_/SAPAPO/APO_ACTIVITY_DATA_STR-ASTAD, sy-vline,
  WA_/SAPAPO/APO_ACTIVITY_DATA_STR-ASTAT, sy-vline,
  WA_/SAPAPO/APO_ACTIVITY_DATA_STR-AENDD, sy-vline,
  WA_/SAPAPO/APO_ACTIVITY_DATA_STR-AENDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/APO_ACTIVITY_DATA_STR 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/APO_ACTIVITY_DATA_STR 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/APO_ACTIVITY_DATA_STR INTO WA_/SAPAPO/APO_ACTIVITY_DATA_STR.


*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 MEOUT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/APO_ACTIVITY_DATA_STR-MEOUT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/APO_ACTIVITY_DATA_STR-MEOUT.
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/APO_ACTIVITY_DATA_STR_STR, 
OPRCOUNTER TYPE STRING,
GROUP_OPRCOUNTER TYPE STRING,
ACTID TYPE STRING,
ATEXT TYPE STRING,
ACTTYPE TYPE STRING,
QUANT TYPE STRING,
MEOUT TYPE STRING,
ASTAD TYPE STRING,
ASTAT TYPE STRING,
AENDD TYPE STRING,
AENDT TYPE STRING,
NET_PROC_TIME TYPE STRING,
ACT_STATUS TYPE STRING,
UNPLANNED TYPE STRING,
RELEASED TYPE STRING,
DATE_FIXED TYPE STRING,
STARTED TYPE STRING,
PART_CONFIRMED TYPE STRING,
FINAL_CONFIRMED TYPE STRING,
INTERRUPTED TYPE STRING,
RESID TYPE STRING,
RESNA TYPE STRING,
QORIG TYPE STRING,
QCNFR TYPE STRING,
ACNFD TYPE STRING,
ACNFT TYPE STRING,
CAPACITY_DEMAND TYPE STRING,
BUCKET_DEMAND TYPE STRING,
EFFECTIVITY_MODE TYPE STRING,
LOCNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/APO_ACTIVITY_DATA_STR_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/APO_ACTIVITY_DATA_STR_STR-OPRCOUNTER sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-GROUP_OPRCOUNTER sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-ACTID sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-ATEXT sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-ACTTYPE sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-QUANT sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-MEOUT sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-ASTAD sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-ASTAT sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-AENDD sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-AENDT sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-NET_PROC_TIME sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-ACT_STATUS sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-UNPLANNED sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-RELEASED sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-DATE_FIXED sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-STARTED sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-PART_CONFIRMED sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-FINAL_CONFIRMED sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-INTERRUPTED sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-RESID sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-RESNA sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-QORIG sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-QCNFR sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-ACNFD sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-ACNFT sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-CAPACITY_DEMAND sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-BUCKET_DEMAND sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-EFFECTIVITY_MODE sy-vline 
WA_/SAPAPO/APO_ACTIVITY_DATA_STR_STR-LOCNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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