ABAP Select data from SAP table HRTMC_S_KEY_INDICATION into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRTMC_S_KEY_INDICATION 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 HRTMC_S_KEY_INDICATION. 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 HRTMC_S_KEY_INDICATION 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_HRTMC_S_KEY_INDICATION TYPE STANDARD TABLE OF HRTMC_S_KEY_INDICATION,
      WA_HRTMC_S_KEY_INDICATION TYPE HRTMC_S_KEY_INDICATION,
      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: <HRTMC_S_KEY_INDICATION> TYPE HRTMC_S_KEY_INDICATION.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRTMC_S_KEY_INDICATION
  INTO TABLE IT_HRTMC_S_KEY_INDICATION.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRTMC_S_KEY_INDICATION
*  INTO TABLE @DATA(IT_HRTMC_S_KEY_INDICATION2).
*--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_HRTMC_S_KEY_INDICATION INDEX 1 INTO DATA(WA_HRTMC_S_KEY_INDICATION2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRTMC_S_KEY_INDICATION ASSIGNING <HRTMC_S_KEY_INDICATION>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRTMC_S_KEY_INDICATION>-CHANGE_STATE_ID = 1.
<HRTMC_S_KEY_INDICATION>-MANDT = 1.
<HRTMC_S_KEY_INDICATION>-PLVAR = 1.
<HRTMC_S_KEY_INDICATION>-OTYPE = 1.
<HRTMC_S_KEY_INDICATION>-OBJID = 1.

ENDLOOP.

LOOP AT IT_HRTMC_S_KEY_INDICATION INTO WA_HRTMC_S_KEY_INDICATION.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRTMC_S_KEY_INDICATION-INFTY, sy-vline,
  WA_HRTMC_S_KEY_INDICATION-SUBTY, sy-vline,
  WA_HRTMC_S_KEY_INDICATION-ISTAT, sy-vline,
  WA_HRTMC_S_KEY_INDICATION-PRIOX, sy-vline,
  WA_HRTMC_S_KEY_INDICATION-BEGDA, sy-vline,
  WA_HRTMC_S_KEY_INDICATION-ENDDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRTMC_S_KEY_INDICATION 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_HRTMC_S_KEY_INDICATION 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_HRTMC_S_KEY_INDICATION INTO WA_HRTMC_S_KEY_INDICATION.


*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 ISOLA, internal->external for field TLANGU_INHERITED
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_HRTMC_S_KEY_INDICATION-TLANGU_INHERITED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRTMC_S_KEY_INDICATION-TLANGU_INHERITED.
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_HRTMC_S_KEY_INDICATION_STR, 
CHANGE_STATE_ID TYPE STRING,
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
ISTAT TYPE STRING,
PRIOX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
VARYF TYPE STRING,
SEQNR TYPE STRING,
VALIDITY_PERIOD TYPE STRING,
START_DATE TYPE STRING,
END_DATE TYPE STRING,
AUTOMATIC_SET TYPE STRING,
STATUS TYPE STRING,
REASON_FOR_CREAT TYPE STRING,
REASON_FOR_DELIM TYPE STRING,
CREAT_DECIDED_BY TYPE STRING,
DELIM_DECIDED_BY TYPE STRING,
COMMENT_ID TYPE STRING,
COMMENT_CLASS TYPE STRING,
OTYPE_INHERITED TYPE STRING,
OBJID_INHERITED TYPE STRING,
SHORT_INHERITED TYPE STRING,
STEXT_INHERITED TYPE STRING,
TLANGU_INHERITED TYPE STRING,
NOMINATION_STATUS_NAME TYPE STRING,
REASON_FOR_CREATE_NAME TYPE STRING,
REASON_FOR_DELIMIT_NAME TYPE STRING,
CREATE_DECIDED_BY_NAME TYPE STRING,
DELIMIT_DECIDED_BY_NAME TYPE STRING,
COMMENT_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRTMC_S_KEY_INDICATION_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_HRTMC_S_KEY_INDICATION_STR-CHANGE_STATE_ID sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-MANDT sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-PLVAR sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-OTYPE sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-OBJID sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-INFTY sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-SUBTY sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-ISTAT sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-PRIOX sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-BEGDA sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-ENDDA sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-VARYF sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-SEQNR sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-VALIDITY_PERIOD sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-START_DATE sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-END_DATE sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-AUTOMATIC_SET sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-STATUS sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-REASON_FOR_CREAT sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-REASON_FOR_DELIM sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-CREAT_DECIDED_BY sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-DELIM_DECIDED_BY sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-COMMENT_ID sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-COMMENT_CLASS sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-OTYPE_INHERITED sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-OBJID_INHERITED sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-SHORT_INHERITED sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-STEXT_INHERITED sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-TLANGU_INHERITED sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-NOMINATION_STATUS_NAME sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-REASON_FOR_CREATE_NAME sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-REASON_FOR_DELIMIT_NAME sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-CREATE_DECIDED_BY_NAME sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-DELIMIT_DECIDED_BY_NAME sy-vline 
WA_HRTMC_S_KEY_INDICATION_STR-COMMENT_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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