ABAP Select data from SAP table HRP1893 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRP1893 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 HRP1893. 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 HRP1893 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_HRP1893 TYPE STANDARD TABLE OF HRP1893,
      WA_HRP1893 TYPE HRP1893,
      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: <HRP1893> TYPE HRP1893.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRP1893.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRP1893
  INTO TABLE IT_HRP1893.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRP1893
*  INTO TABLE @DATA(IT_HRP18932).
*--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_HRP1893 INDEX 1 INTO DATA(WA_HRP18932).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRP1893 ASSIGNING <HRP1893>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRP1893>-MANDT = 1.
<HRP1893>-PLVAR = 1.
<HRP1893>-OTYPE = 1.
<HRP1893>-OBJID = 1.
<HRP1893>-SUBTY = 1.

ENDLOOP.

LOOP AT IT_HRP1893 INTO WA_HRP1893.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRP1893-ISTAT, sy-vline,
  WA_HRP1893-BEGDA, sy-vline,
  WA_HRP1893-ENDDA, sy-vline,
  WA_HRP1893-VARYF, sy-vline,
  WA_HRP1893-SEQNR, sy-vline,
  WA_HRP1893-INFTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRP1893 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_HRP1893 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_HRP1893 INTO WA_HRP1893.


*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_HRP1893_STR, 
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
SUBTY TYPE STRING,
ISTAT TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
VARYF TYPE STRING,
SEQNR TYPE STRING,
INFTY TYPE STRING,
OTJID TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
REASN TYPE STRING,
HISTO TYPE STRING,
ITXNR TYPE STRING,
TRANS_GUID TYPE STRING,
DEGREENR TYPE STRING,
DEGREEID TYPE STRING,
TYPENAME TYPE STRING,
BRINNUMBER TYPE STRING,
RESIDENCENO TYPE STRING,
LOCATION TYPE STRING,
INSTITUTENAME TYPE STRING,
PREEDUEXTCODE TYPE STRING,
PREEDUEXTNAME TYPE STRING,
PREEDUEXTCOUN TYPE STRING,
VERIFCERTSTATUS TYPE STRING,
VERIFICATIONDATE TYPE STRING,
VERIFIEDBRIN TYPE STRING,
VERIFIEDINSTIT TYPE STRING,
VERIFIEDEMP TYPE STRING,
VERIFACCEPT TYPE STRING,
PREEDUSIGNALCD01 TYPE STRING,
PREEDUSIGNALCD02 TYPE STRING,
DEGFAILDATE TYPE STRING,
DEGFAILEDFLAG TYPE STRING,
TABNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRP1893_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_HRP1893_STR-MANDT sy-vline 
WA_HRP1893_STR-PLVAR sy-vline 
WA_HRP1893_STR-OTYPE sy-vline 
WA_HRP1893_STR-OBJID sy-vline 
WA_HRP1893_STR-SUBTY sy-vline 
WA_HRP1893_STR-ISTAT sy-vline 
WA_HRP1893_STR-BEGDA sy-vline 
WA_HRP1893_STR-ENDDA sy-vline 
WA_HRP1893_STR-VARYF sy-vline 
WA_HRP1893_STR-SEQNR sy-vline 
WA_HRP1893_STR-INFTY sy-vline 
WA_HRP1893_STR-OTJID sy-vline 
WA_HRP1893_STR-AEDTM sy-vline 
WA_HRP1893_STR-UNAME sy-vline 
WA_HRP1893_STR-REASN sy-vline 
WA_HRP1893_STR-HISTO sy-vline 
WA_HRP1893_STR-ITXNR sy-vline 
WA_HRP1893_STR-TRANS_GUID sy-vline 
WA_HRP1893_STR-DEGREENR sy-vline 
WA_HRP1893_STR-DEGREEID sy-vline 
WA_HRP1893_STR-TYPENAME sy-vline 
WA_HRP1893_STR-BRINNUMBER sy-vline 
WA_HRP1893_STR-RESIDENCENO sy-vline 
WA_HRP1893_STR-LOCATION sy-vline 
WA_HRP1893_STR-INSTITUTENAME sy-vline 
WA_HRP1893_STR-PREEDUEXTCODE sy-vline 
WA_HRP1893_STR-PREEDUEXTNAME sy-vline 
WA_HRP1893_STR-PREEDUEXTCOUN sy-vline 
WA_HRP1893_STR-VERIFCERTSTATUS sy-vline 
WA_HRP1893_STR-VERIFICATIONDATE sy-vline 
WA_HRP1893_STR-VERIFIEDBRIN sy-vline 
WA_HRP1893_STR-VERIFIEDINSTIT sy-vline 
WA_HRP1893_STR-VERIFIEDEMP sy-vline 
WA_HRP1893_STR-VERIFACCEPT sy-vline 
WA_HRP1893_STR-PREEDUSIGNALCD01 sy-vline 
WA_HRP1893_STR-PREEDUSIGNALCD02 sy-vline 
WA_HRP1893_STR-DEGFAILDATE sy-vline 
WA_HRP1893_STR-DEGFAILEDFLAG sy-vline 
WA_HRP1893_STR-TABNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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