ABAP Select data from SAP table HRP1718 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRP1718 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 HRP1718. 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 HRP1718 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_HRP1718 TYPE STANDARD TABLE OF HRP1718,
      WA_HRP1718 TYPE HRP1718,
      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: <HRP1718> TYPE HRP1718.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRP1718.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRP1718
  INTO TABLE IT_HRP1718.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRP1718
*  INTO TABLE @DATA(IT_HRP17182).
*--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_HRP1718 INDEX 1 INTO DATA(WA_HRP17182).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRP1718 ASSIGNING <HRP1718>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRP1718>-MANDT = 1.
<HRP1718>-PLVAR = 1.
<HRP1718>-OTYPE = 1.
<HRP1718>-OBJID = 1.
<HRP1718>-SUBTY = 1.

ENDLOOP.

LOOP AT IT_HRP1718 INTO WA_HRP1718.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRP1718-ISTAT, sy-vline,
  WA_HRP1718-BEGDA, sy-vline,
  WA_HRP1718-ENDDA, sy-vline,
  WA_HRP1718-VARYF, sy-vline,
  WA_HRP1718-SEQNR, sy-vline,
  WA_HRP1718-INFTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRP1718 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_HRP1718 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_HRP1718 INTO WA_HRP1718.


*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 ALPHA, internal->external for field INST_PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRP1718-INST_PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRP1718-INST_PARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONTACT_PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HRP1718-CONTACT_PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRP1718-CONTACT_PARTNER.
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_HRP1718_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,
ARBGB TYPE STRING,
ORT01 TYPE STRING,
LAND1 TYPE STRING,
BRANC TYPE STRING,
TAETE TYPE STRING,
TAETEBSCHR TYPE STRING,
ANSVX TYPE STRING,
INST_PARTNER TYPE STRING,
CONTACT_PARTNER TYPE STRING,
ACAD_YEAR TYPE STRING,
ACAD_SESSION TYPE STRING,
ISHREG_ID TYPE STRING,
START_DATE TYPE STRING,
END_DATE TYPE STRING,
TEXT TYPE STRING,
STATUS TYPE STRING,
CATEGORY1 TYPE STRING,
CATEGORY2 TYPE STRING,
CATEGORY3 TYPE STRING,
CATEGORY4 TYPE STRING,
CATEGORY5 TYPE STRING,
ATTRIBUTE1 TYPE STRING,
ATTRIBUTE2 TYPE STRING,
ATTRIBUTE3 TYPE STRING,
ATTRIBUTE4 TYPE STRING,
ATTRIBUTE5 TYPE STRING,
GUIDTYPE TYPE STRING,
GUID TYPE STRING,
SC_OBJID TYPE STRING,
ACLEVEL TYPE STRING,
REF_OTYPE TYPE STRING,
REF_OBJID TYPE STRING,
NOTE_GUID TYPE STRING,
DURATION TYPE STRING,
UNIT TYPE STRING,
FULLPART_IND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRP1718_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_HRP1718_STR-MANDT sy-vline 
WA_HRP1718_STR-PLVAR sy-vline 
WA_HRP1718_STR-OTYPE sy-vline 
WA_HRP1718_STR-OBJID sy-vline 
WA_HRP1718_STR-SUBTY sy-vline 
WA_HRP1718_STR-ISTAT sy-vline 
WA_HRP1718_STR-BEGDA sy-vline 
WA_HRP1718_STR-ENDDA sy-vline 
WA_HRP1718_STR-VARYF sy-vline 
WA_HRP1718_STR-SEQNR sy-vline 
WA_HRP1718_STR-INFTY sy-vline 
WA_HRP1718_STR-OTJID sy-vline 
WA_HRP1718_STR-AEDTM sy-vline 
WA_HRP1718_STR-UNAME sy-vline 
WA_HRP1718_STR-REASN sy-vline 
WA_HRP1718_STR-HISTO sy-vline 
WA_HRP1718_STR-ITXNR sy-vline 
WA_HRP1718_STR-ARBGB sy-vline 
WA_HRP1718_STR-ORT01 sy-vline 
WA_HRP1718_STR-LAND1 sy-vline 
WA_HRP1718_STR-BRANC sy-vline 
WA_HRP1718_STR-TAETE sy-vline 
WA_HRP1718_STR-TAETEBSCHR sy-vline 
WA_HRP1718_STR-ANSVX sy-vline 
WA_HRP1718_STR-INST_PARTNER sy-vline 
WA_HRP1718_STR-CONTACT_PARTNER sy-vline 
WA_HRP1718_STR-ACAD_YEAR sy-vline 
WA_HRP1718_STR-ACAD_SESSION sy-vline 
WA_HRP1718_STR-ISHREG_ID sy-vline 
WA_HRP1718_STR-START_DATE sy-vline 
WA_HRP1718_STR-END_DATE sy-vline 
WA_HRP1718_STR-TEXT sy-vline 
WA_HRP1718_STR-STATUS sy-vline 
WA_HRP1718_STR-CATEGORY1 sy-vline 
WA_HRP1718_STR-CATEGORY2 sy-vline 
WA_HRP1718_STR-CATEGORY3 sy-vline 
WA_HRP1718_STR-CATEGORY4 sy-vline 
WA_HRP1718_STR-CATEGORY5 sy-vline 
WA_HRP1718_STR-ATTRIBUTE1 sy-vline 
WA_HRP1718_STR-ATTRIBUTE2 sy-vline 
WA_HRP1718_STR-ATTRIBUTE3 sy-vline 
WA_HRP1718_STR-ATTRIBUTE4 sy-vline 
WA_HRP1718_STR-ATTRIBUTE5 sy-vline 
WA_HRP1718_STR-GUIDTYPE sy-vline 
WA_HRP1718_STR-GUID sy-vline 
WA_HRP1718_STR-SC_OBJID sy-vline 
WA_HRP1718_STR-ACLEVEL sy-vline 
WA_HRP1718_STR-REF_OTYPE sy-vline 
WA_HRP1718_STR-REF_OBJID sy-vline 
WA_HRP1718_STR-NOTE_GUID sy-vline 
WA_HRP1718_STR-DURATION sy-vline 
WA_HRP1718_STR-UNIT sy-vline 
WA_HRP1718_STR-FULLPART_IND sy-vline      INTO ld_text SEPARATED BY SPACE.

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