ABAP Select data from SAP table HRDIALOG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDIALOG
*  INTO TABLE @DATA(IT_HRDIALOG2).
*--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_HRDIALOG INDEX 1 INTO DATA(WA_HRDIALOG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRDIALOG>-INDEX = 1.
<HRDIALOG>-FCODE = 1.
<HRDIALOG>-LISTB = 1.
<HRDIALOG>-BREAK = 1.
<HRDIALOG>-CYCLE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRDIALOG-UPDAT, sy-vline,
  WA_HRDIALOG-CLEAR, sy-vline,
  WA_HRDIALOG-TIMCO, sy-vline,
  WA_HRDIALOG-VTASK, sy-vline,
  WA_HRDIALOG-ENQUE, sy-vline,
  WA_HRDIALOG-LANGU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRDIALOG 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_HRDIALOG 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_HRDIALOG INTO WA_HRDIALOG.


*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 NEW_LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_HRDIALOG-NEW_LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRDIALOG-NEW_LANGU.
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_HRDIALOG_STR, 
INDEX TYPE STRING,
FCODE TYPE STRING,
LISTB TYPE STRING,
BREAK TYPE STRING,
CYCLE TYPE STRING,
UPDAT TYPE STRING,
CLEAR TYPE STRING,
TIMCO TYPE STRING,
VTASK TYPE STRING,
ENQUE TYPE STRING,
LANGU TYPE STRING,
HISTO TYPE STRING,
PSTAT TYPE STRING,
PPNNN TYPE STRING,
PPSUB TYPE STRING,
EDYNR TYPE STRING,
LDYNR TYPE STRING,
LVDAT TYPE STRING,
LPSUB TYPE STRING,
DIALG TYPE STRING,
REPID TYPE STRING,
MESSG TYPE STRING,
DVARY TYPE STRING,
DSUPR TYPE STRING,
DBTAB TYPE STRING,
TBTAB TYPE STRING,
ADDCO TYPE STRING,
SCLAS TYPE STRING,
IDOCS TYPE STRING,
OBJMN TYPE STRING,
PTNNNN TYPE STRING,
PPNNN_EXP TYPE STRING,
BTCI_PROG TYPE STRING,
EXT_INFTY TYPE STRING,
EXT_R_FUNC TYPE STRING,
EXT_W_FUNC TYPE STRING,
EXT_TABNAM TYPE STRING,
SUPPR_INTE TYPE STRING,
CFLAG TYPE STRING,
SUPP750X TYPE STRING,
SUPPSTRU TYPE STRING,
SUPPT777F TYPE STRING,
ORGM_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,
VDATA TYPE STRING,
DUTY TYPE STRING,
NEW_OBJECT TYPE STRING,
DUTY_RELAT TYPE STRING,
REASN TYPE STRING,
NEW_HISTO TYPE STRING,
NEW_LANGU TYPE STRING,
GDATE TYPE STRING,
UPD_VDATA TYPE STRING,
UPD_VDATAX TYPE STRING,
EXT_SEQNR TYPE STRING,
COMMIT_FLG TYPE STRING,
MAINT TYPE STRING,
BUFFER_CLR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDIALOG_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_HRDIALOG_STR-INDEX sy-vline 
WA_HRDIALOG_STR-FCODE sy-vline 
WA_HRDIALOG_STR-LISTB sy-vline 
WA_HRDIALOG_STR-BREAK sy-vline 
WA_HRDIALOG_STR-CYCLE sy-vline 
WA_HRDIALOG_STR-UPDAT sy-vline 
WA_HRDIALOG_STR-CLEAR sy-vline 
WA_HRDIALOG_STR-TIMCO sy-vline 
WA_HRDIALOG_STR-VTASK sy-vline 
WA_HRDIALOG_STR-ENQUE sy-vline 
WA_HRDIALOG_STR-LANGU sy-vline 
WA_HRDIALOG_STR-HISTO sy-vline 
WA_HRDIALOG_STR-PSTAT sy-vline 
WA_HRDIALOG_STR-PPNNN sy-vline 
WA_HRDIALOG_STR-PPSUB sy-vline 
WA_HRDIALOG_STR-EDYNR sy-vline 
WA_HRDIALOG_STR-LDYNR sy-vline 
WA_HRDIALOG_STR-LVDAT sy-vline 
WA_HRDIALOG_STR-LPSUB sy-vline 
WA_HRDIALOG_STR-DIALG sy-vline 
WA_HRDIALOG_STR-REPID sy-vline 
WA_HRDIALOG_STR-MESSG sy-vline 
WA_HRDIALOG_STR-DVARY sy-vline 
WA_HRDIALOG_STR-DSUPR sy-vline 
WA_HRDIALOG_STR-DBTAB sy-vline 
WA_HRDIALOG_STR-TBTAB sy-vline 
WA_HRDIALOG_STR-ADDCO sy-vline 
WA_HRDIALOG_STR-SCLAS sy-vline 
WA_HRDIALOG_STR-IDOCS sy-vline 
WA_HRDIALOG_STR-OBJMN sy-vline 
WA_HRDIALOG_STR-PTNNNN sy-vline 
WA_HRDIALOG_STR-PPNNN_EXP sy-vline 
WA_HRDIALOG_STR-BTCI_PROG sy-vline 
WA_HRDIALOG_STR-EXT_INFTY sy-vline 
WA_HRDIALOG_STR-EXT_R_FUNC sy-vline 
WA_HRDIALOG_STR-EXT_W_FUNC sy-vline 
WA_HRDIALOG_STR-EXT_TABNAM sy-vline 
WA_HRDIALOG_STR-SUPPR_INTE sy-vline 
WA_HRDIALOG_STR-CFLAG sy-vline 
WA_HRDIALOG_STR-SUPP750X sy-vline 
WA_HRDIALOG_STR-SUPPSTRU sy-vline 
WA_HRDIALOG_STR-SUPPT777F sy-vline 
WA_HRDIALOG_STR-ORGM_ID sy-vline 
WA_HRDIALOG_STR-MANDT sy-vline 
WA_HRDIALOG_STR-PLVAR sy-vline 
WA_HRDIALOG_STR-OTYPE sy-vline 
WA_HRDIALOG_STR-OBJID sy-vline 
WA_HRDIALOG_STR-INFTY sy-vline 
WA_HRDIALOG_STR-SUBTY sy-vline 
WA_HRDIALOG_STR-ISTAT sy-vline 
WA_HRDIALOG_STR-PRIOX sy-vline 
WA_HRDIALOG_STR-BEGDA sy-vline 
WA_HRDIALOG_STR-ENDDA sy-vline 
WA_HRDIALOG_STR-VARYF sy-vline 
WA_HRDIALOG_STR-SEQNR sy-vline 
WA_HRDIALOG_STR-VDATA sy-vline 
WA_HRDIALOG_STR-DUTY sy-vline 
WA_HRDIALOG_STR-NEW_OBJECT sy-vline 
WA_HRDIALOG_STR-DUTY_RELAT sy-vline 
WA_HRDIALOG_STR-REASN sy-vline 
WA_HRDIALOG_STR-NEW_HISTO sy-vline 
WA_HRDIALOG_STR-NEW_LANGU sy-vline 
WA_HRDIALOG_STR-GDATE sy-vline 
WA_HRDIALOG_STR-UPD_VDATA sy-vline 
WA_HRDIALOG_STR-UPD_VDATAX sy-vline 
WA_HRDIALOG_STR-EXT_SEQNR sy-vline 
WA_HRDIALOG_STR-COMMIT_FLG sy-vline 
WA_HRDIALOG_STR-MAINT sy-vline 
WA_HRDIALOG_STR-BUFFER_CLR sy-vline      INTO ld_text SEPARATED BY SPACE.

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