ABAP Select data from SAP table HRRHAS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRRHAS
*  INTO TABLE @DATA(IT_HRRHAS2).
*--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_HRRHAS INDEX 1 INTO DATA(WA_HRRHAS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRRHAS>-PLVAR = 1.
<HRRHAS>-OTYPE = 1.
<HRRHAS>-OBJID = 1.
<HRRHAS>-WEGID = 1.
<HRRHAS>-SBEGD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRRHAS-SENDD, sy-vline,
  WA_HRRHAS-SVECT, sy-vline,
  WA_HRRHAS-ACTIV, sy-vline,
  WA_HRRHAS-DEPTH, sy-vline,
  WA_HRRHAS-TDEPTH, sy-vline,
  WA_HRRHAS-PSTRU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRRHAS 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_HRRHAS 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_HRRHAS INTO WA_HRRHAS.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_HRRHAS_STR, 
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
WEGID TYPE STRING,
SBEGD TYPE STRING,
SENDD TYPE STRING,
SVECT TYPE STRING,
ACTIV TYPE STRING,
DEPTH TYPE STRING,
TDEPTH TYPE STRING,
PSTRU TYPE STRING,
SEQNR TYPE STRING,
LEVEL TYPE STRING,
INDEX TYPE STRING,
TFLAG TYPE STRING,
VFLAG TYPE STRING,
AUTHY TYPE STRING,
CB_NR TYPE STRING,
77AW_INT TYPE STRING,
SFLAG TYPE STRING,
RECURS TYPE STRING,
SET_ID TYPE STRING,
CBFLAG TYPE STRING,
REALO TYPE STRING,
COTYP TYPE STRING,
OBJ_COUNT TYPE STRING,
AUTHY_BASE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRRHAS_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_HRRHAS_STR-PLVAR sy-vline 
WA_HRRHAS_STR-OTYPE sy-vline 
WA_HRRHAS_STR-OBJID sy-vline 
WA_HRRHAS_STR-WEGID sy-vline 
WA_HRRHAS_STR-SBEGD sy-vline 
WA_HRRHAS_STR-SENDD sy-vline 
WA_HRRHAS_STR-SVECT sy-vline 
WA_HRRHAS_STR-ACTIV sy-vline 
WA_HRRHAS_STR-DEPTH sy-vline 
WA_HRRHAS_STR-TDEPTH sy-vline 
WA_HRRHAS_STR-PSTRU sy-vline 
WA_HRRHAS_STR-SEQNR sy-vline 
WA_HRRHAS_STR-LEVEL sy-vline 
WA_HRRHAS_STR-INDEX sy-vline 
WA_HRRHAS_STR-TFLAG sy-vline 
WA_HRRHAS_STR-VFLAG sy-vline 
WA_HRRHAS_STR-AUTHY sy-vline 
WA_HRRHAS_STR-CB_NR sy-vline 
WA_HRRHAS_STR-77AW_INT sy-vline 
WA_HRRHAS_STR-SFLAG sy-vline 
WA_HRRHAS_STR-RECURS sy-vline 
WA_HRRHAS_STR-SET_ID sy-vline 
WA_HRRHAS_STR-CBFLAG sy-vline 
WA_HRRHAS_STR-REALO sy-vline 
WA_HRRHAS_STR-COTYP sy-vline 
WA_HRRHAS_STR-OBJ_COUNT sy-vline 
WA_HRRHAS_STR-AUTHY_BASE sy-vline      INTO ld_text SEPARATED BY SPACE.

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