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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/PT_SCHED_AONEW_STR
*  INTO TABLE @DATA(IT_/SAPAPO/PT_SCHED_AONEW_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/PT_SCHED_AONEW_STR INDEX 1 INTO DATA(WA_/SAPAPO/PT_SCHED_AONEW_STR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/PT_SCHED_AONEW_STR>-AONEW = 1.
</SAPAPO/PT_SCHED_AONEW_STR>-SCHEDCONTROL = 1.
</SAPAPO/PT_SCHED_AONEW_STR>-PROPAGATION_AREA = 1.
</SAPAPO/PT_SCHED_AONEW_STR>-START_PLANHORIZON = 1.
</SAPAPO/PT_SCHED_AONEW_STR>-END_PLANHORIZON = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/PT_SCHED_AONEW_STR-PLAN_START, sy-vline,
  WA_/SAPAPO/PT_SCHED_AONEW_STR-ACT_MODE, sy-vline,
  WA_/SAPAPO/PT_SCHED_AONEW_STR-MUST_SCHED_ALL, sy-vline,
  WA_/SAPAPO/PT_SCHED_AONEW_STR-RESPECT_IO_ATTRS, sy-vline,
  WA_/SAPAPO/PT_SCHED_AONEW_STR-GET_SCHEDLOG, sy-vline,
  WA_/SAPAPO/PT_SCHED_AONEW_STR-RESERVED_NUM_1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/PT_SCHED_AONEW_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/PT_SCHED_AONEW_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/PT_SCHED_AONEW_STR INTO WA_/SAPAPO/PT_SCHED_AONEW_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 TSTPS, internal->external for field START_PLANHORIZON
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/PT_SCHED_AONEW_STR-START_PLANHORIZON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/PT_SCHED_AONEW_STR-START_PLANHORIZON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field END_PLANHORIZON
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/PT_SCHED_AONEW_STR-END_PLANHORIZON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/PT_SCHED_AONEW_STR-END_PLANHORIZON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field PLAN_START
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/PT_SCHED_AONEW_STR-PLAN_START
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/PT_SCHED_AONEW_STR-PLAN_START.
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/PT_SCHED_AONEW_STR_STR, 
AONEW TYPE STRING,
SCHEDCONTROL TYPE STRING,
PROPAGATION_AREA TYPE STRING,
START_PLANHORIZON TYPE STRING,
END_PLANHORIZON TYPE STRING,
PLAN_START TYPE STRING,
ACT_MODE TYPE STRING,
MUST_SCHED_ALL TYPE STRING,
RESPECT_IO_ATTRS TYPE STRING,
GET_SCHEDLOG TYPE STRING,
RESERVED_NUM_1 TYPE STRING,
RESERVED_NUM_2 TYPE STRING,
RESERVED_NUM_3 TYPE STRING,
RESERVED_BOOL TYPE STRING,
RESERVED_IBOOL TYPE STRING,
SCHEDPARAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/PT_SCHED_AONEW_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/PT_SCHED_AONEW_STR_STR-AONEW sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-SCHEDCONTROL sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-PROPAGATION_AREA sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-START_PLANHORIZON sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-END_PLANHORIZON sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-PLAN_START sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-ACT_MODE sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-MUST_SCHED_ALL sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-RESPECT_IO_ATTRS sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-GET_SCHEDLOG sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-RESERVED_NUM_1 sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-RESERVED_NUM_2 sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-RESERVED_NUM_3 sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-RESERVED_BOOL sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-RESERVED_IBOOL sy-vline 
WA_/SAPAPO/PT_SCHED_AONEW_STR_STR-SCHEDPARAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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