ABAP Select data from SAP table HRTNM_S_TN_ASSIGN_PERSON into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRTNM_S_TN_ASSIGN_PERSON
*  INTO TABLE @DATA(IT_HRTNM_S_TN_ASSIGN_PERSON2).
*--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_HRTNM_S_TN_ASSIGN_PERSON INDEX 1 INTO DATA(WA_HRTNM_S_TN_ASSIGN_PERSON2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRTNM_S_TN_ASSIGN_PERSON>-ROSEL = 1.
<HRTNM_S_TN_ASSIGN_PERSON>-ICON = 1.
<HRTNM_S_TN_ASSIGN_PERSON>-TYPE = 1.
<HRTNM_S_TN_ASSIGN_PERSON>-ATTTY = 1.
<HRTNM_S_TN_ASSIGN_PERSON>-PERNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRTNM_S_TN_ASSIGN_PERSON-NACHN, sy-vline,
  WA_HRTNM_S_TN_ASSIGN_PERSON-VORNA, sy-vline,
  WA_HRTNM_S_TN_ASSIGN_PERSON-WERKS, sy-vline,
  WA_HRTNM_S_TN_ASSIGN_PERSON-BTRTL, sy-vline,
  WA_HRTNM_S_TN_ASSIGN_PERSON-TNAST, sy-vline,
  WA_HRTNM_S_TN_ASSIGN_PERSON-TNAST_TXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRTNM_S_TN_ASSIGN_PERSON 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_HRTNM_S_TN_ASSIGN_PERSON 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_HRTNM_S_TN_ASSIGN_PERSON INTO WA_HRTNM_S_TN_ASSIGN_PERSON.


*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_HRTNM_S_TN_ASSIGN_PERSON_STR, 
ROSEL TYPE STRING,
ICON TYPE STRING,
TYPE TYPE STRING,
ATTTY TYPE STRING,
PERNR TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
TNAST TYPE STRING,
TNAST_TXT TYPE STRING,
PLVTN TYPE STRING,
OTYTN TYPE STRING,
OBJTN TYPE STRING,
BEGTN TYPE STRING,
ENDTN TYPE STRING,
ISTTN TYPE STRING,
TNAFC TYPE STRING,
OTBET TYPE STRING,
OBBET TYPE STRING,
SHBET TYPE STRING,
BEGBET TYPE STRING,
ENDBET TYPE STRING,
ICOND TYPE STRING,
ICONF TYPE STRING,
GENDER TYPE STRING,
OTYCA TYPE STRING,
OBJCA TYPE STRING,
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
INFTY TYPE STRING,
RSIGN TYPE STRING,
RELAT TYPE STRING,
ISTAT TYPE STRING,
PRIOX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
VARYF TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
REASN TYPE STRING,
HISTO TYPE STRING,
ITXNR TYPE STRING,
SCLAS TYPE STRING,
SOBID TYPE STRING,
PROZT TYPE STRING,
ADATA TYPE STRING,
CELLTAB TYPE STRING,
COLORTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRTNM_S_TN_ASSIGN_PERSON_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_HRTNM_S_TN_ASSIGN_PERSON_STR-ROSEL sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-ICON sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-TYPE sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-ATTTY sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-PERNR sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-NACHN sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-VORNA sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-WERKS sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-BTRTL sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-TNAST sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-TNAST_TXT sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-PLVTN sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-OTYTN sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-OBJTN sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-BEGTN sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-ENDTN sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-ISTTN sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-TNAFC sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-OTBET sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-OBBET sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-SHBET sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-BEGBET sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-ENDBET sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-ICOND sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-ICONF sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-GENDER sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-OTYCA sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-OBJCA sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-MANDT sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-PLVAR sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-OTYPE sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-OBJID sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-INFTY sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-RSIGN sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-RELAT sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-ISTAT sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-PRIOX sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-BEGDA sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-ENDDA sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-VARYF sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-SEQNR sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-AEDTM sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-UNAME sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-REASN sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-HISTO sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-ITXNR sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-SCLAS sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-SOBID sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-PROZT sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-ADATA sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-CELLTAB sy-vline 
WA_HRTNM_S_TN_ASSIGN_PERSON_STR-COLORTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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