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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/HEUR_SET
*  INTO TABLE @DATA(IT_/SAPAPO/HEUR_SET2).
*--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/HEUR_SET INDEX 1 INTO DATA(WA_/SAPAPO/HEUR_SET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/HEUR_SET>-MANDT = 1.
</SAPAPO/HEUR_SET>-HEUR_ID = 1.
</SAPAPO/HEUR_SET>-HEUR_SET_NO = 1.
</SAPAPO/HEUR_SET>-ACTIVE = 1.
</SAPAPO/HEUR_SET>-FORWARD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/HEUR_SET-DIRCHANGE, sy-vline,
  WA_/SAPAPO/HEUR_SET-NOBREAKS, sy-vline,
  WA_/SAPAPO/HEUR_SET-PLANNINGMODE, sy-vline,
  WA_/SAPAPO/HEUR_SET-ORDER_INT_REL, sy-vline,
  WA_/SAPAPO/HEUR_SET-ORDER_EXT_REL, sy-vline,
  WA_/SAPAPO/HEUR_SET-PEGGING_FIX_USE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/HEUR_SET 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/HEUR_SET 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/HEUR_SET INTO WA_/SAPAPO/HEUR_SET.


*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 TIMSP, internal->external for field MAX_FLOAT
CALL FUNCTION 'CONVERSION_EXIT_TIMSP_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/HEUR_SET-MAX_FLOAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/HEUR_SET-MAX_FLOAT.
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/HEUR_SET_STR, 
MANDT TYPE STRING,
HEUR_ID TYPE STRING,
HEUR_SET_NO TYPE STRING,
ACTIVE TYPE STRING,
FORWARD TYPE STRING,
DIRCHANGE TYPE STRING,
NOBREAKS TYPE STRING,
PLANNINGMODE TYPE STRING,
ORDER_INT_REL TYPE STRING,
ORDER_EXT_REL TYPE STRING,
PEGGING_FIX_USE TYPE STRING,
PEGGING_DYN_USE TYPE STRING,
OFFSETBUFFER TYPE STRING,
OFFSETBUF_TYPE TYPE STRING,
SEL_START TYPE STRING,
SEL_START_TYPE TYPE STRING,
SEL_END TYPE STRING,
SEL_END_TYPE TYPE STRING,
MAX_MODE_ALLOWED TYPE STRING,
USE_CURRENT_MODE TYPE STRING,
USE_BUFT_CONSTR TYPE STRING,
USE_BUFT_RES_PEG TYPE STRING,
MAX_CONSTR_MODE TYPE STRING,
IGNORE_EFF_TIME TYPE STRING,
INSERT_ACR_FIXED TYPE STRING,
SUB_MODE1 TYPE STRING,
COMPACT_MODE TYPE STRING,
STRPRO_ID TYPE STRING,
HELP_ID TYPE STRING,
RESCONNID TYPE STRING,
USE_CYCLE_TIMES TYPE STRING,
CHECK_BUCKETS TYPE STRING,
DSP_DATE TYPE STRING,
DSP_TIME TYPE STRING,
SEQ_MAN_EXT_MODE TYPE STRING,
PCM_CONSTR TYPE STRING,
AVR_CONSTR_INFI TYPE STRING,
MIXRES_PLAN_MODE TYPE STRING,
TIME_OUT TYPE STRING,
RES_FINITY_LEVEL TYPE STRING,
FAULT_TOLERANCE TYPE STRING,
FT_PEGGING TYPE STRING,
FT_CONSTR TYPE STRING,
PLN_LOG_DETAIL TYPE STRING,
MAX_FLOAT TYPE STRING,
USE_PLANNED TYPE STRING,
SHOW_CP TYPE STRING,
FIX_BACKWARD TYPE STRING,
HANDLING_DEALLOC TYPE STRING,
MODE_SELECTION TYPE STRING,
SETUP_GROUPING TYPE STRING,
USE_EARL_DATES TYPE STRING,
INTSTARTDATETYPE TYPE STRING,
INTSTARTDATE TYPE STRING,
INTSTARTTIME TYPE STRING,
INTENDDATETYPE TYPE STRING,
INTENDDATE TYPE STRING,
INTENDTIME TYPE STRING,
FIX_INT TYPE STRING,
PLAN_INT TYPE STRING,
FUNC_ADD TYPE STRING,
FUNC_REPLACE TYPE STRING,
FUNC_DELETE_ALL TYPE STRING,
FUNC_DEACTIVATE TYPE STRING,
FUNC_FIX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/HEUR_SET_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/HEUR_SET_STR-MANDT sy-vline 
WA_/SAPAPO/HEUR_SET_STR-HEUR_ID sy-vline 
WA_/SAPAPO/HEUR_SET_STR-HEUR_SET_NO sy-vline 
WA_/SAPAPO/HEUR_SET_STR-ACTIVE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-FORWARD sy-vline 
WA_/SAPAPO/HEUR_SET_STR-DIRCHANGE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-NOBREAKS sy-vline 
WA_/SAPAPO/HEUR_SET_STR-PLANNINGMODE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-ORDER_INT_REL sy-vline 
WA_/SAPAPO/HEUR_SET_STR-ORDER_EXT_REL sy-vline 
WA_/SAPAPO/HEUR_SET_STR-PEGGING_FIX_USE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-PEGGING_DYN_USE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-OFFSETBUFFER sy-vline 
WA_/SAPAPO/HEUR_SET_STR-OFFSETBUF_TYPE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-SEL_START sy-vline 
WA_/SAPAPO/HEUR_SET_STR-SEL_START_TYPE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-SEL_END sy-vline 
WA_/SAPAPO/HEUR_SET_STR-SEL_END_TYPE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-MAX_MODE_ALLOWED sy-vline 
WA_/SAPAPO/HEUR_SET_STR-USE_CURRENT_MODE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-USE_BUFT_CONSTR sy-vline 
WA_/SAPAPO/HEUR_SET_STR-USE_BUFT_RES_PEG sy-vline 
WA_/SAPAPO/HEUR_SET_STR-MAX_CONSTR_MODE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-IGNORE_EFF_TIME sy-vline 
WA_/SAPAPO/HEUR_SET_STR-INSERT_ACR_FIXED sy-vline 
WA_/SAPAPO/HEUR_SET_STR-SUB_MODE1 sy-vline 
WA_/SAPAPO/HEUR_SET_STR-COMPACT_MODE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-STRPRO_ID sy-vline 
WA_/SAPAPO/HEUR_SET_STR-HELP_ID sy-vline 
WA_/SAPAPO/HEUR_SET_STR-RESCONNID sy-vline 
WA_/SAPAPO/HEUR_SET_STR-USE_CYCLE_TIMES sy-vline 
WA_/SAPAPO/HEUR_SET_STR-CHECK_BUCKETS sy-vline 
WA_/SAPAPO/HEUR_SET_STR-DSP_DATE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-DSP_TIME sy-vline 
WA_/SAPAPO/HEUR_SET_STR-SEQ_MAN_EXT_MODE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-PCM_CONSTR sy-vline 
WA_/SAPAPO/HEUR_SET_STR-AVR_CONSTR_INFI sy-vline 
WA_/SAPAPO/HEUR_SET_STR-MIXRES_PLAN_MODE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-TIME_OUT sy-vline 
WA_/SAPAPO/HEUR_SET_STR-RES_FINITY_LEVEL sy-vline 
WA_/SAPAPO/HEUR_SET_STR-FAULT_TOLERANCE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-FT_PEGGING sy-vline 
WA_/SAPAPO/HEUR_SET_STR-FT_CONSTR sy-vline 
WA_/SAPAPO/HEUR_SET_STR-PLN_LOG_DETAIL sy-vline 
WA_/SAPAPO/HEUR_SET_STR-MAX_FLOAT sy-vline 
WA_/SAPAPO/HEUR_SET_STR-USE_PLANNED sy-vline 
WA_/SAPAPO/HEUR_SET_STR-SHOW_CP sy-vline 
WA_/SAPAPO/HEUR_SET_STR-FIX_BACKWARD sy-vline 
WA_/SAPAPO/HEUR_SET_STR-HANDLING_DEALLOC sy-vline 
WA_/SAPAPO/HEUR_SET_STR-MODE_SELECTION sy-vline 
WA_/SAPAPO/HEUR_SET_STR-SETUP_GROUPING sy-vline 
WA_/SAPAPO/HEUR_SET_STR-USE_EARL_DATES sy-vline 
WA_/SAPAPO/HEUR_SET_STR-INTSTARTDATETYPE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-INTSTARTDATE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-INTSTARTTIME sy-vline 
WA_/SAPAPO/HEUR_SET_STR-INTENDDATETYPE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-INTENDDATE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-INTENDTIME sy-vline 
WA_/SAPAPO/HEUR_SET_STR-FIX_INT sy-vline 
WA_/SAPAPO/HEUR_SET_STR-PLAN_INT sy-vline 
WA_/SAPAPO/HEUR_SET_STR-FUNC_ADD sy-vline 
WA_/SAPAPO/HEUR_SET_STR-FUNC_REPLACE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-FUNC_DELETE_ALL sy-vline 
WA_/SAPAPO/HEUR_SET_STR-FUNC_DEACTIVATE sy-vline 
WA_/SAPAPO/HEUR_SET_STR-FUNC_FIX sy-vline      INTO ld_text SEPARATED BY SPACE.

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